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- 1 - TS33000 version 1. 4 specifications subject to change www.triunesystems.com copyright ? 2012 , triune systems, llc description features typical application the ts 33000 is a dc/dc synchronous switching regulator with fully integrated power switches, internal compensation, and full fault protection. the switching frequency of 2.2 5mhz enables the use of extremely small filter components, result ing in smaller board space and red uced bom costs. when the input current is greater than approximately 50ma, the ts 33000 utilizes pwm voltage mode feedback with input voltage feed - forward to provide a wide input voltage range without the need for external compensation. for the fixed ou tput option, w hen the input current is less than 50ma, the device uses a pfm mode to provide increased efficiency at light loads. the cross over between pfm mode and pwm is automatic and has hysteresis to prevent oscillation between the modes. addition ally, the nlp mode pin can be used to force the device in to pwm mode to reduce the output ripple, if needed (fixed output only) . the TS33000 integrates a wide range of protection circuitry; including input supply under - voltage lockout, output under - voltage, output over - voltage, soft start, high side fet and low side fet current limits, and thermal shutdown. high efficiency synchronous dc/dc buck converter ? fixed output option has a utomatic low power pfm mode for reduced quiescent current at light loads ? 2.2 5mhz +/ - 10% fixed switching frequency ? adjustable version output voltage range: 0.6v to 5v with +/ - 1.5% reference across temperature ? fixed output voltages: 0.8v, 0.9v, 1.2v, 1.5v, 1.8v, 2.5v, and 3.3v with +/ - 2% output tolerance ? input voltage range: 2.0 v to 5 .5 v ( 6 . 0 v abs max) ? voltage mode pwm control with input voltage feed - forward compensation ? voltage supervisor for v out reported at the pg pin ? input supply under voltage lock out ? soft start for controlled startup with no overshoot ? full protection for over - current, over - temperature, and v out overvoltage ? less than 100na in shutdown mode ? multiple enable pins for flexible system sequencing ? low external component count ? junction operating temperature - 40c to 125c ? packaged in a 16 pin qfn (3x3) applications ? point of load ? systems with deep submicron asics/fpgas ? set - top box ? communications equipment ? portable and handheld equipment t s 3 3 0 0 0 v o u t 4 . 7 u f 1 . 5 u h f i x e d o u t p u t e n p g n d v s w v c c f b g n d v o u t s e n s e 2 x 4 . 7 u f v c c e n p g p g 1 0 k o h m ( o p t i o n a l ) v c c o r v o u t n l p n l p t s 3 3 0 0 0 v o u t 4 . 7 u f 1 . 5 u h a d j u s t a b l e o u t p u t e n p g n d v s w v c c f b g n d v o u t s e n s e 2 x 4 . 7 u f v c c e n p g p g r t o p r b o t 1 0 k o h m ( o p t i o n a l ) v c c o r v o u t n l p n l p
- 2 - specifications subject to change www.triunesystems.com copyright ? 2012 , triune systems, llc TS33000 version 1. 4 pi nout pin description pin symbol pin # function description vsw 1 switching voltage node connec t to 1.5 u h inductor . short to pins 12, 14, & 15 vcc 2 input voltage input voltage supply . short to pin s 3 & 11 vcc 3 input voltage input voltage supply. short to pins 2 & 11 gnd 4 gnd g round for the internal circuitry of the device fb 5 feedback input feedback v oltage for the regulator when used in adjustable mode . connect to the output voltage resistor divider for adjustable mode and no connection for fixed output modes v out sense 6 output voltage sense output voltage sense . requires kelvin connection to 4.7 uf output capacitor nlp 7 nlp input forcing this pin high prevents the device from going into low power pfm mode operation pg 8 pg output power good indicator open - drain output. en 9 enable input input hi gh voltage enables the device . input low disables the device . test out 10 test mode output connect to gnd. for internal testing use only. vcc 11 input voltage input voltage supply. short to p in s 2 & 3 vsw 12 switching voltage node connect to 1.5 uh inductor. s hort to pins 1, 14, & 15 pgnd 13 power gnd gnd supply for internal low - side fet/integrated diode . short to pin 16 vsw 14 switching voltage node connect to 1.5 uh inductor. s hort to pins 1, 12, & 15 vsw 15 switching voltage node connect to 1.5 uh inductor. short to pins 1, 12, & 14 pgnd 16 power gnd gnd supply for internal low - side fet/integrated diode . short to pin 13 TS33000 t s 3 3 1 1 / 2 v c c v c c g n d v s w v c c t e s t o u t e n v s w v s w v s w p g n d p g n d n l p v o u t s e n s e f b p g
- 3 - specifications subject to change www.triunesystems.com copyright ? 2012 , triune systems, llc TS33000 version 1. 4 fu nctional block diagr am figure 1: ts 33000 block diagram for fixed and adjustable mode devices o v e r c u r r e n t p r o t e c t i o n g a t e d r i v e g a t e d r i v e g a t e d r i v e c o n t r o l v o u t s e n s e v r e f & s o f t s t a r t o s c i l l a t o r r a m p g e n e r a t o r c o m p a r a t o r e r r o r a m p g n d u n d e r v o l t a g e p r o t e c t i o n m o n i t o r & c o n t r o l t h e r m a l p r o t e c t i o n v c c v s w e n p g n d n l p 4 . 7 u f 1 . 5 u h r t o p ( a d j u s t a b l e ) c o m p e n s a t i o n n e t w o r k p g v c c f b ( a d j u s t a b l e ) v o u t r b o t ( a d j u s t a b l e ) ( a d j u s t a b l e )
- 4 - specifications subject to change www.triunesystems.com copyright ? 2012 , triune systems, llc TS33000 version 1. 4 product family matrix package options C qfn16 output voltage C 0.8v, 0.9v, 1.2v, 1.5v, 1 .8v, 2.5v, 3.3v, adjustable (0.6v C 5 v) absolute maximum rat ings over operating free C air temperature range unless otherwise noted (1 ,2 ) unit vcc - 0.3 to 6 .0 v vsw - 1 to 6.0 v en, pg ,fb , nlp , test out, v out sense - 0.3 to 6 v electrostatic discharge C human body model 2k v electro static discharge C charge device model 500 v lead temperature (soldering, 10 seconds) 260 ? c (1) stresses beyond those listed under absolute maximum ratings may cause permanent damage to the device. these are stress ratin gs only and functional operation of the device at these or any other conditions beyond those indicated under recommended operating conditions is n ot implied. exposure to absolute C maximum C rated conditions for extended periods may affect device reliability. (2) all voltage values are with respect to network ground terminal. thermal characterist ics symbol parameter value unit ? ja thermal resistance junction to air (note 1) 50 c/w t stg storage temperature range - 65 to 150 c t j max maximum junction temperature 150 c t j operating junction temperature range - 40 to 125 c note 1: assumes qfn16 1 in 2 area of 2 oz copper and 25 ? c ambient temperature. recommended operatin g conditions symbol parameter min typ max unit vcc input operating voltage 2 .0 3.3 5.5 v l out output filter inductor typical value (note 1 ,3 ) 1.2 1.5 1.8 uh c out output filter capacitor typical value (note 2 ,3 ) 3.76 4.7 5.64 uf c out - esr output filter capacitor esr 0 5 20 m ? c bypass input supply bypass capacitor typical value (note 2 ) 2x4.7uf uf note 1: for best performance, an inductor with a saturation current rating higher than the maximum v out load requirement plus the inductor current ripple. see the inductor current ripple calculations in inductor calculations sections. note 2 : for best performance, a low esr ceramic capacitor should be used C x 7r or x5r types should be used. y5v should be avoided. note 3: min and max listed are to account for +/ - 20% variation of the typi cal value. typical values of 4.7uf and 1.5 uh are recommended.
- 5 - specifications subject to change www.triunesystems.com copyright ? 2012 , triune systems, llc TS33000 version 1. 4 characteristics electrical c haracteristics, t j = - 4 0c to 12 5 c, vcc = 5 v ( unless otherwise noted ) symbol parameter condition min typ max unit vcc s upply voltage vcc input supply voltage 2 .0 5 .5 v i cc - norm quiescent current normal mode vcc = 3.3 v, i load = 0a , en=3.3 v, nlp =3.3 v 18 ma i cc - lpm quiescent current low power pfm mode vcc = 3.3 v, i load = 0a, en=3.3 v, nlp =0v 45 ua i cc - s hutdown quiescent current shutdown mode vcc = 3.3 v , en= 0v 0.1 ua vcc under voltage lockout vcc - u v input supply under voltage threshold vcc increasing 1.9 2.0 v vcc - u v _hyst input supply under voltage threshold hysteresis 1 00 mv osc f osc oscillator frequency 2.0 2.2 5 2.5 mhz pg open drain output s t pg pg r elease t imer 10 ms i oh - pg high - level output leakage v pg = 5v vcc=5v 0.1 ua v ol - pg low - level output voltage i pg = - 0.3ma 0.1 v en /nlp input voltage thresholds v ih - en/nlp high level input voltage vcc= 2 v to 5v 1.0 v v il - en /nlp low level input voltage vcc= 2 v to 5v 0.4 v v hyst - en /nlp input hysteresis vcc= 2 v to 5v 1 00 mv i in - en en input leakage v en =5v vcc=5v 0.1 ua v en =0v vcc=5v 0.1 ua nlp p d nlp pulldown resistor pulldown to gnd 100 k ? ? thermal shutdown tsd thermal shutdown junction temperature 150 170 190 c tsd hyst tsd hysteresis 10 c
- 6 - specifications subject to change www.triunesystems.com copyright ? 2012 , triune systems, llc TS33000 version 1. 4 regulator characteristics electrical characteristics, t j = - 40c to 12 5c, vcc = 5 v (unless otherwise noted) symbol parameter condition min typ max unit switch mode regulator: l= 1.5u h and c= 4.7 uf v out - pwm output voltage tolerance in m ode v out - 2 % v out v out + 2% v r dson high side switch on resistance i vsw = - 300ma 110 m? vsw = 300ma 75 m? out output current ts 33000 300 ma i oc d hs over current detect hs ts 3300 0 600 ma i ocdls over current detect ls ts 3300 0 600 ma v out - line output line regulation vcc = 2.5 v to 5 v, v out = 1.8 v, i load = 300m a - 10 10 mv v out - load output load regulation i load = 10ma to 300m a, vcc = 5 v, v out = 1.8 v v out - 0.5% v out v out + 0.5% v fb th feedback reference fb switch point 0.6 v fb th - tol feedback reference tolerance - 1.5 1.5 % i fb feedback input current 100na na t ss softstart ramp time 500 u s v out - pg v out power good threshold 85 % v out v out - pg _ hyst v out power good hysteresis 2 % v out v o ut - ov v out over voltage threshold 1 0 6 % v out v out - ov _hyst v out over voltage hysteresis 2 % v out
- 7 - specifications subject to change www.triunesystems.com copyright ? 2012 , triune systems, llc TS33000 version 1. 4 functional description t his voltage - mode point of l oad (pol) synchronous step - down power supply produ ct can be used in the consumer , industrial, and automotive market segments. it includes flexibility to be used for a wide range of output voltages and is optimized for high efficiency power conversion with low r dson integrated synchronous switch es. a 2.2 5 mhz i nternal switching frequency facilitates low cost lc filter combination s and improved transient response . additionally, the fixed output version , with integrated p ower on reset and fault circuit r y enables a minimal external component count to provide a complete power supply solution for a variety of applications. detailed pin description unregulated input, vcc this terminal is the unregulated input voltage source for the ic. it is recommended that 2 4.7 uf bypass capacitor s be placed close as possible to the vcc pins for best performance . since this is the main supply for the ic, good layout practices need to be followed for this connection. f eedback, fb t his is the voltage feedback input termina l for the adjustable version . for the fixed mode version s , this p in should be left float ing and not c onnected. the connection on the pcb should be kept as short as possible from the feedback resistors , kept away from the vsw connections or other switching/high frequency nodes, and should not be shared with any other connection. this should minimize stray coupling, reduce noise injection, and minimize voltage shift cause by output load. to choose the resistors for the adjustable version , use the following equation: v out = 0.6 (1 + r top /r bot ) for stability, rtop should be 270k ohm s to 330k ohms. output voltage sense, v out sense this is the input terminal for the voltage output feedback and is needed for both adjustable and fixed voltage versions. this should be connected to the main output capacitor, and the same good layout practices should be followed as for the fb connection. keep this line as short as possible, keep it away from the vsw and ot her switching or high frequency traces, and do n ot share this connection with any other connection on the pcb. switching output, vsw this is the switching node of the regulator. it should be connected directly to the 1.5 u h inductor with a wide, short trace . it is switching between vcc and pgnd at the switching frequency. g round, gnd this ground is used for the majority of the device including the analog reference , control loop, and other circuits . power ground, pgnd this is a separate ground connection used for the low side sync hron ous fet to isolate switching noise from the rest of the device . enable, en this is an input terminal to activate the entire device . this will enable the internal reference, oscillator , tsd, etc, and allow the fault detection circuitry to work correctly. noti ce that the en needs to low for the part to exhibit 100na quiescent current.
- 8 - specifications subject to change www.triunesystems.com copyright ? 2012 , triune systems, llc TS33000 version 1. 4 p ower g ood output, pg this is an open drain , active high output. th e switched mode output voltage is monitored and t he pg line will remain low until the output voltage reaches the v out - uv threshold , approximately 85% of the final regulation output . once the in ternal comparator detects the output voltage is above the desired threshold , an internal 10msec delay timer is activated and the pg line is de - asserted to high when this delay timer expires. in the event the output voltage decreases below v out - uv , the pg line will be asserted low immediately and remain low until the output rises abov e v out - uv and the delay timer times out again . if en is pulled low, the vcc input undervoltage trips, or thermal shutdown is reached, the pg pin will immediately be pulled low . n low power mode output, nlp this is an input to force the pwm mode when ligh t load is on the output. the p f m low power mode has higher output voltage ripple, which is some applications may be unacceptable. if low ripple is needed on the output this pin can be tied to vcc input, or switched above 1.0 v during operation to force the device into normal pwm mode. internal protection details internal current limit current limit is always active when the regulator is enabled. high side current limit will shorten the high side on time and tri - state the high side . addit ionally, low side current limit will protect the low side fet and turn off t he switch if current limit is sensed on the low side switch. since the output is fully synchronous, the current limit is protected on the low side in both the positive and negative direction. soft start soft start ensures current limit does not prevent regulator startup and minimize overshoot at startup . the typical startup time is 925us. these values do not change with output voltage, current limit settings, or adjustable/fixed mode. the soft start is re - triggered with the any rising edge that enables the regulator, including the en input pins, thermal shutdown, vcc undervoltage , or a vcc power cycle . thermal shutdown if the temperature of the die exceeds 170c , the vsw outputs will tri - state to protect the device from damage. the pg and a ll other protection circuitry will stay active to inform the system of the failure mode. once th e device cools to 160c , the device will attempt to start up again, following the normal soft start sequence with 10ms delay on pg . if the device reaches 170 c, the shutdown/restart sequence will repeat. output overvoltage if the output of the regulator exceeds 10 6 % of the regulation voltage, the vsw outputs will tri - state to protect the device from damage. this check occurs at the start of each switching cycle . if it occurs during the middle of a cycle, the switching for that cycle will complete, and the vsw outputs will tri - state at the beginning of the next cycle. vcc under - voltage lockout t he device is held in the off state until vcc reaches 1.9 v . there is a 1 00mv hysteresis on this input , which requi res the input to fall below 1.8 v before the device will disable . performance results startup plots - tbd switching plots - tbd load transient plots - tbd line transient plots - tbd efficiency plots - tbd osc frequency across temp - tbd output voltage across temp C tbd line regulation C tbd load regulation C tbd
- 9 - specifications subject to change www.triunesystems.com copyright ? 2012 , triune systems, llc TS33000 version 1. 4 external component s el ection the internal co mpensation is optimized for a 4.7 uf output capacitor and a 1.5 u h inductor. to keep the output rip ple low, a low esr (less than 20 mohm) ceramic is recommended. for optimal over - current protection, inducto r should be able to handle the 400m a without saturation. layout guidelines tbd recommended componen ts / design example tbd
- 10 - specifications subject to change www.triunesystems.com copyright ? 2012 , triune systems, llc TS33000 version 1. 4 package mechanical d rawings ( all dimensions in mm ) units millimeters dimensions limits min nom max number of pins n 16 pitch e 0.50 bsc overall height a 0.80 0.90 1.00 standoff a1 0.00 0.02 0.05 contact thickness a3 0.20 ref overall length d 3.00 bsc exposed pad width e2 1.55 1.70 1.80 overall width e 3.00 bsc exposed pad length d2 1.55 1.70 1.80 contact width b 0.20 0.25 0.30 contact length l 0.20 0.30 0.40 contact - to - exposed pad k 0.20 - - top view bottom view exposed pad
- 11 - specifications subject to change www.triunesystems.com copyright ? 2012 , triune systems, llc TS33000 version 1. 4 recommeded pcb land pattern dimensions in millimeters units millimeters dimension limits min nom max contact pitch e 0.50 bsc optional center pad width w2 - - 1.70 optional center pad length t2 - - 1.70 contact pad spacing c1 - 3.00 - contact pad spacing c2 - 3.00 - contact pad width (x16) x1 - - 0.35 contact pad length (x16) y1 - - 0.65 distance between pads g 0.15 - - notes: dimensions and tolerances per asme y14.5m . bsc: basic dimension. theoretically exact value s shown without tolerances. ref: refer e nce dimension, usually without tolerance, for information only. recommended land pattern silk screen
- 12 - specifications subject to change www.triunesystems.com copyright ? 2012 , triune systems, llc TS33000 version 1. 4 legal notices information contained in this publication regarding device applications and the like is provided only for your convenience an d may be superseded by updates. it is your responsibility to ensure that your application meets with your specifications. typical parameters which may be provided in triune systems data sheets and/or specifications can and do vary in different applications and actual performance may vary over time . all operating parameters, including typicals must be validated for your a pplication by your technical experts. triune systems makes no representations or warranties of any kind whether express or implied, written or oral, statutory or otherwise, related to the information, including but not limited to its condition, quality, p erformance, merchantability or fitness for purpose. triune systems disclaims all liability arising from this information and its use. triune system products are not des igned, intended, or authorized for use as components in systems intended for surgical im plant into the body, or other applications intended to support or sustain life, or for any other application in which the failure of the triune systems product could create a situation where personal injury or de ath may occur. should the buyer purchase or use triune systems products for any such unintended or unauthorized application, the buyer shall indemnify and hold triune sy stems, and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and exp enses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unautho rized use, even if such claim alleges that triune systems was negligent regarding the design or manu facture of the part. no licenses are conveyed, implicitly or otherwise, under any triune systems intellectual property rights. trademarks the triune systems? name and logo, mppt - lite?, and nanosmart? are trademarks of triune systems, llc. in the u.s.a. . all other trademarks mentioned herein are property of their respective companies. ? 2012 triune systems, llc. all rights reserved .

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