View SS25-B-A-A_4810474.PDF datasheet online --- IC-ON-LINE

Datasheet File OCR Text:

Contact factory for replacement model
OBSOLETE PRODUCT
5 Vdc Input, 3.3 Vdc Output dc/dc cOnVerter
SuperSIPTM
The SuperSIPTM dC/dC converter accepts a regulated 5V input (10%) and provides 1.8Vdc to 3.6Vdc at 6A. The circuit is optimized for high efficiency and fast load transient response needed by telecom, dSP, and microprocessor applications. Advanced thermal design, monolithic power circuitry, planar magnetics, and synchronous rectification result in outstanding performance and value. Pins are staked for wave solderability. Multiple programming, power good and on/off options allow superior flexibility and drop in compatibility for most existing designs.
Description
Features
Non isolated DC/DC Converter designed to operate from a regulated 5V bus Output voltage Range: 1.8V - 3.6V Easy resistive programming for desired output No resistive programming gives 3.3 Vdc output Wave solderable
Page 1
SUPERSIP 8/98 REV C
Electrical Specifications
Unless otherwise specified, operating conditions are as follows: Vin=5V, Vo=3.3V, Io=6A, TA=25C, Cin=100F, Co=0F. Parameters Input Input Voltage Input Current Ripple Required Capacitance Output Output Voltage Output Program Range Output Current Output Ripple Output Rise time Output Capacitance Range Line Regulation Load Regulation Temperature Coefficient Combined variation Conditions Vin Cin Vo Io T Co Io min-Io max Tc Vin min-max Io min-max TA=25C-85C Vin = 4.75Vdc Note 1 Nominal Note 2 TA=25C 20 Mhz BW Min. 4.5 0 3.25 1.8 0 Typ. 5.0 200 100 3.3 Max. 5.5 Units VdC mARMS F VdC VdC Amps mVp-p S F % % %/C
15 700 0 0.5 1.0 0.01
3.35 3.6 6 50 5000
Current Limit General Switching Frequency
Ilimit
-2 6.5
9 800
+2 12
% A kHz
dynamic Response IO/t = 1A/10msec, Vi = 5.0V, TA = 25C Load Change from IO = 0% to IO = 100% Peak deviation Settling time (VO<10% Peak deviation) Load change from IO = 100% to IO = 0% Peak deviation Settling time (VO<10% Peak deviation) Temperature Operating Temperature Storage Temperature Note 3 0 -40
30 100 30 100 +60 +125
mV sec mV sec C C
Notes 1. Input source<3" from SuperSIPTM, Load transient <3A per SIP. 100F low ESR capacitor for load transients >3A. 2. Optional programming 1.8 - 3.6 or +10% available. See Table. 3. 100 lfm air, Vo=3.3V, Io=6A. See Thermal design Guide for other conditions.
Page 2
SUPERSIP 8/98 REV C
To program the SuperSIPTM for Vout<3.3, connect resistor across pins 8 (TRIM) and 1 (Vo). For Vout>3.3, resistor is connected across pins 8 and 4 (Gnd).
Programming
Table 2
Vout 1.8 1.9 2.0 2.1 2.2 2.3 2.4 2.5 2.6 2.7 Resistor Value 576 1.21k 1.96k 2.8k 3.83k 4.99k 6.49k 8.25k 10.7k 13.7k Vout 2.8 2.9 3.0 3.1 3.2 3.3 3.4 3.5 3.6 Resistor Value 18.2k 24.3k 34.8k 54.9k 110.0k OPEN 66.5k 29.4k 18.2k
Locate your operating current, read the junction temp rise from the graph and add to your maximum ambient. 135C is the maximum allowable operating junction temperature. Test conditions: device soldered into 4" x 4" PCB, 2 sided with power and ground planes for heat conduction. due to the difficulty in predicting the thermal effects of airflow velocity and direction, and thermal conduction through ground planes it is important that the SuperSIPTM be evaluated thermally in each application. For high ambient temperature/high current application please request our Application Note 35-118-01, "Accurate Measurements of SuperSIPTM Junction Temperature", for further assistance.
Thermal Design Guide
Tj Rise vs. Io
(Junction Temp Rise vs. Output Current)
70 60
STILL AIR 100LFM 300LFM
Temp Rise C
Transient Response
Operating conditions are as follows: Vin=5V, Vo=3.3V, Load change from Io=0% to Io=100%, TA=25C, Cin=0F,
50 40 30 20 10 0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5 6
OUTPUT CURRENT - AMPS
Efficiency 100
95
EFFICIENCY %
90 85 80 75 0.5 1.5 2.5 3.5 4.5 5.5
Operating conditions are as follows: Vin=5V, Vo=3.3V, Load change from Io=100% to Io=0%, TA=25C, Cin=0F, Co=F.
3.3V 25C 2.1V 25C
OUTPUT CURRENT AMPS
Vo=3.3V, Cout-Of, Vi=5V, Cin=100f
Page 3
SUPERSIP 8/98 REV C
Ordering Information
Typical examples: SS 25 A A A Standard configuration 5V to 3.3V with 1.8V-3.6V trim range
SS
25
-
B
-
A
-
A
Power Good A = Pin 7A installed for Power Good option B = Pin omitted (industry standard)
Enable A = logic1 or open = ON logic 0 or gnd = OFF B = logic 0 or gnd = ON logic 1 = OFF
Programming (See Table 2) A = Standard 3.3V with Pin 8 open or program per Table 2.
Pin Out
Pin 1 2 3 4 5 6 7 7A 8 9 Function Vo Vo Vo GNd GNd VIN VIN Pgood Trim Enable Description Output Voltage Output Voltage Output Voltage Ground Ground Input Voltage Input Voltage Power Good Option Output Voltage Adjust Enable Option
TOLERANCES +.008" for 3 place decimals + .02" for 2 place decimals + .002" for pin diameter
Mechanical
2.50 (63.5) 0.30 (7.62)
0.55 (14.0) 12 34 56 7 7A 8 9 .100 (2.54) 0.25 (6.35)
.200 (5.08) 0.28 (7.2)
0.100 (2.54) OPTIONAL 1.900 (48.26)
0.025 (64) SQUARE TIP
.14 (3.56)
.16 (4.06)
USA: Canada: UK: France: Japan: China:
Mansfield (MA), Tel: (508) 339 3000, email: sales@murata-ps.com Toronto, Tel: (866) 740 1232, email: toronto@murata-ps.com Milton Keynes, Tel: +44 (0)1908 615232, email: mk@murata-ps.com Montigny Le Bretonneux, Tel: +33 (0)1 34 60 01 01, email: france@murata-ps.com Tokyo, Tel: 3-3779-1031, email: sales_tokyo@murata-ps.com Osaka, Tel: 6-6354-2025, email: sales_osaka@murata-ps.com Shanghai, Tel: +86 215 027 3678, email: shanghai@murata-ps.com Guangzhou, Tel: +86 208 221 8066, email: guangzhou@murata-ps.com
Murata Power Solutions, Inc. 11 Cabot Boulevard, Mansfield, MA 02048-1151 U.S.A. Tel: (508) 339-3000 (800) 233-2765 Fax: (508) 339-6356
www.murata-ps.com email: sales@murata-ps.com ISO 9001 & ISO 14001 REGISTERED
Murata Power Solutions, Inc. makes no representation that the use of its products in the circuits described herein, or the use of other technical information contained herein, will not infringe upon existing or future patent rights. The descriptions contained herein do not imply the granting of licenses to make, use, or sell equipment constructed in accordance therewith. Specifications are subject to change without notice. (c) 2009 Murata Power Solutions, Inc.
Germany: Munchen, Tel: +49 (0)89-544334-0, email: ped.munich@murata-ps.com
Singapore: Parkway Centre, Tel: +65 6348 9096, email: singapore@murata-ps.com

▲Up To Search▲

Price & Availability of SS25-B-A-A

	To Download SS25-B-A-A Datasheet File
If you can't view the Datasheet, Please click here to try to view without PDF Reader .