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RP100 SERIES LOW NOISE 200mA LDO REGULATOR
OUTLINE
The RP100 Series are CMOS-based voltage regulator ICs with high output voltage accuracy, extremely low supply current, low ON-resistance, and high ripple rejection. Each of these ICs consists of a voltage reference unit, an error amplifier, resistor-net for voltage setting, a current limit circuit, and a chip enable circuit. These ICs perform with low dropout voltage and a chip enable function. The line transient response and load transient response of the RP100 Series are excellent, thus these ICs are very suitable for the power supply for hand-held communication equipment. The output voltage of these ICs is fixed with high accuracy. Since the packages for these ICs are PLP therefore high density mounting of the ICs on boards is possible.
Preliminary
NO.EA-
FEATURES
* * * * * * * * * Low Supply Current...................................................................... Typ. 18A Standby Mode .............................................................................. Typ. 0.1A Low Dropout Voltage .................................................................... Typ. 0.14V (IOUT=150mA 2.5V Output type) High Ripple Rejection................................................................... Typ. 75dB (f=1kHz 2.5V Output type) Low Temperature-Drift Coefficient of Output Voltage ****************************** Typ. 30ppm/C Excellent Line Regulation............................................................. Typ. 0.02%/V High Output Voltage Accuracy...................................................... 1.0% Small Packages............................................................................ PLP1612-4, SOT-23-5 Output Voltage.............................................................................. 1.2V, 1.5V, 1.8V, 1.85V, 1.9V, 2.0V, 2.5V, 2.6V, 2.7V, 2.8V, 2.85V, 2.9V, 3.0V, 3.3V * Built-in Fold Back Protection Circuit............................................. Typ. 40mA (Current at short mode) * Ceramic capacitors are recommended to be used with this IC .... CIN=COUT=1F or more
APPLICATIONS
* Power source for portable communication equipment. * Power source for electrical appliances such as cameras, VCRs and camcorders. * Power source for battery-powered equipment.
Rev. 0.04
1
RP100
BLOCK DIAGRAMS
RP100Xxx1B VDD VDD RP100Xxx1D VOUT
VOUT
+
Vref Vref
Current Limit
+
Current Limit
CE
GND
CE
GND
SELECTION GUIDE
The output voltage, version, and the taping type for the ICs can be selected at the user's request. The selection can be made with designating the part number as shown below;
RP100Xxx1x-xx
ab Code a cd
Part Number
Contents Designation of Package Type: K: PLP1612-4 N: SOT-23-5 Setting Output Voltage (VOUT): 1.2V, 1.5V, 1.8V, 1.85V, 1.9V, 2.0V, 2.5V, 2.6V, 2.7V, 2.8V, 2.85V, 2.9V, 3.0V, 3.3V Designation of Active Type: B: active high type D: active high, with auto discharge Designation of Taping Type: Ex. TR (refer to Taping Specifications; TR type is the standard direction.)
b
c d
Rev 0.04
2
RP100
PIN CONFIGURATION
z PLP1612-4
VOUT
1 TOP VIEW
4
VDD
GND
2
3
CE
z SOT-23-5 VOUT 5 NC 4
MARK SIDE
1 VDD
2 GND
3 CE
Rev. 0.04
3
RP100
PIN DESCRIPTIONS
*
RP100K
Pin No. 1 2 3 4 Symbol VOUT GND CE VDD Output Pin Ground Pin Chip Enable Pin Input Pin Description
*
RP100N
Pin No. 1 2 3 4 5 Symbol VDD GND CE NC VOUT Input Pin Ground Pin Chip Enable Pin No Connection Output Pin Description
ABSOLUTE MAXIMUM RATINGS
Symbol VIN VCE VOUT IOUT PD Topt Tstg Input Voltage Input Voltage (CE Pin) Output Voltage Output Current Power Dissipation *Note1 Operating Temperature Range Storage Temperature Range Item Rating 6.0 6.0 -0.3~VIN+0.3 300 250 -40~85 -55~125 Unit V V V mA mW C C
Note1: This value is under evaluation. Mounted on board. Conditions: Board material FR4, Board dimensions 40*40*1.6(mm) Metal rate: 50%(2-layer) without thermal via holes, wind velocity=0m/s
Rev 0.04
4
RP100
ELECTRICAL CHARACTERISTICS
* *
RP100Xxx VIN= Set VOUT+ 1V, IOUT=1mA, CIN=COUT=1F, unless otherwise noted.
Topt=25C
Symbol VOUT IOUT VOUT/IOUT
Item Output Voltage Output Current Load Regulation 1mA
< =
Conditions (*1)
Min. VOUT x0.99 200
Typ.
Max. VOUT x1.01
Unit V mA
(-20mV)
(20mV)
IOUT
< =
150mA 1.2V 1.5V 1.7V 2.0V 2.5V 2.8V
< = < = < = < = < = < =
SETVOUT<1.5V SETVOUT<1.7V SETVOUT<2.0V SETVOUT<2.5V SETVOUT<2.8V SETVOUT
20 400 240 210 170 140 130 18 0.1
40 500 380 340 300 250 230 25 2.0 0.10
mV mV
VDIF
Dropout Voltage
Iout=150mA
< =
3.3V
ISS Istandby VOUT/VIN RR VIN VOUT/T ILIM IPD VCEH VCEL en RLOW
Supply Current Supply Current (Standby) Line Regulation Ripple Rejection Input Voltage Output Voltage Temperature Coefficient Short Current Limit CE Pull-down Current CE Input Voltage "H" CE Input Voltage "L" Output Noise Nch On Resistance for Auto Discharge (D version Only)
IOUT = 0mA VCE = 0V Set VOUT+0.5V
< =
A A %/V dB
VIN5.0V
0.02 75 1.7
f=1kHz ,Ripple 0.2Vp-p VIN=Set VOUT +1V, IOUT=30mA (In case that VOUT < 2.0V, VIN=3V) = *(2) -40C
< =
5.0 30 40 0.3
V ppm /C mA A V
Topt
< =
85C
VOUT = 0V 1.5
0.3 BW = 10Hz to 100kHz IOUT=30mA VIN=4.0V, VCE=0V 30 30
V Vrms
(*1) Vout < 2.0V 20mV accuracy = (*2)If Vin=5.5V, maximum duration time is 500hrs.
Rev. 0.04
5
RP100
TECHNICAL NOTES
When using these ICs, consider the following points: Phase Compensation In these ICs, phase compensation is made for securing stable operation even if the load current is varied. For this purpose, use a capacitor COUT with good frequency characteristics and ESR (Equivalent Series Resistance). (Note: If additional ceramic capacitors are connected with parallel to the output pin with an output capacitor for phase compensation, the operation might be unstable. Because of this, test these ICs with as same external components as ones to be used on the PCB.) PCB Layout Make VDD and GND lines sufficient. If their impedance is high, noise pickup or unstable operation may result. Connect a capacitor with a capacitance value as much as 1.0F or more between VDD and GND pin, and as close as possible to the pins. Set external components, especially the output capacitor, as close as possible to the ICs, and make wiring as short as possible.
Rev 0.04
6

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