SS25-A-A-A MURATA-PS | Alldatasheet
Document overview
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Technical content
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
Description
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. OBSOLETE PRODUCT Contact factory for replacement model
Unless otherwise specified, operating conditions are as follows: Vin=5V, Vo=3.3V, Io=6A, TA=25°C, Cin=100µF , Co=0F . Notes 1. Input source<3” from SuperSIP™, Load transient <3A per SIP . 100µF low ESR capacitor for load transients >3A. 3. 100 lfm air, V o=3.3V, Io=6A. See Thermal design Guide for other conditions. Parameters Conditions Min. Typ. Max. Units Input Input Voltage Vin 4.5 5.0 5.5 VdC Input Current Ripple 200 mARMS Required Capacitance Cin Note 1 0 100 µF Output Output Voltage Vo Nominal 3.25 3.3 3.35 VdC Output Program Range Note 2 1.8 3.6 VdC Output Current Io T A=25°C 0 6 Amps Output Ripple 20 Mhz BW 15 50 mVp-p Output Rise time T 700 µS Output Capacitance Range Co 0 5000 µF Line Regulation ±0.5 % Load Regulation Io min-Io max ±1.0 % Temperature Coefficient Tc 0.01 %/°C Combined variation Vin min-max Io min-max Current Limit Ilimit Vin = 4.75Vdc 6.5 9 12 A General Switching Frequency 800 kHz dynamic Response ∆IO/∆t = 1A/10msec, Vi = 5.0V, TA = 25°C Load Change from IO = 0% to IO = 100% Peak deviation 30 mV Settling time (VO<10% Peak deviation) 100 µsec Load change from IO = 100% to IO = 0% Peak deviation 30 mV Settling time (VO<10% Peak deviation) 100 µ sec Temperature Operating Temperature Note 3 0 +60 °C Storage Temperature -40 +125 °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). Thermal Design Guide Locate your operating current, read the junction temp rise from the graph and add to your maximum ambient. 135°C 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 ther- mal effects of airflow velocity and direction, and thermal conduction through ground planes it is important that the SuperSIP TM be evaluated thermally in each application. For high ambient temperature/high current application please request our Application Note 35-118-01, “Accurate Measurements of SuperSIP TM Junction Temperature”, for further assistance. Tj Rise vs. Io (Junction Temp Rise vs. Output Current) EFFICIENCY % OUTPUT CURRENT AMPS Vo=3.3V, Cout-Oµf, Vi=5V, Cin=100µf Efficiency 100 Temp Rise C OUTPUT CURRENT - AMPS 0.5 1.5 2.5 3.5 4.5 5.5 STILL AIR 100LFM 300LFM 3.3V 25C 2.1V 25C Table 2 Vout Resistor Value Vout Resistor Value 1.8 576Ω 2.8 18.2k 1.9 1.21k 2.9 24.3k 2.0 1.96k 3.0 34.8k 2.1 2.8k 3.1 54.9k 2.2 3.83k 3.2 110.0k 2.3 4.99k 3.3 OPEN 2.4 6.49k 3.4 66.5k 2.5 8.25k 3.5 29.4k 2.6 10.7k 3.6 18.2k 2.7 13.7k Transient Response Operating conditions are as follows: Vin=5V, Vo=3.3V, Load change from Io=0% to Io=100%, TA=25°C, Cin=0F , Operating conditions are as follows: Vin=5V, Vo=3.3V, Load change from Io=100% to Io=0%, TA=25°C, Cin=0F , Co=µF.
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 Pin Out Pin Function Description
1 Vo Output Voltage
2 Vo Output Voltage
3 Vo Output Voltage
4 GNd Ground
5 GNd Ground
6 VIN Input Voltage
7 VIN Input Voltage
7A Pgood Power Good Option
8 Trim Output Voltage Adjust
9 Enable Enable Option
Power Good Enable Programming (See Table 2) A = Pin 7A installed for Power A = logic1 or open = ON A = Standard 3.3V with Pin 8 open Good option logic 0 or gnd = OFF or program per Table 2. B = Pin omitted (industry standard) B = logic 0 or gnd = ON logic 1 = OFF Mechanical TOLERANCES +.008” for 3 place decimals + .02” for 2 place decimals + .002” for pin diameter .14 (3.56) 0.28 (7.2) 1 2 3 4 5 6 7 7A 8 9 2.50 (63.5) 1.900 (48.26) SQUARE TIP .100 (2.54) OPTIONAL 0.100 (2.54) 0.55 (14.0) 0.25 (6.35) 0.30 (7.62) .16 (4.06) 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. © 2009 Murata Power Solutions, Inc. USA: Mansfield (MA), Tel: (508) 339 3000, email: sales@murata-ps.com Canada: Toronto, Tel: (866) 740 1232, email: toronto@murata-ps.com UK: Milton Keynes, Tel: +44 (0)1908 615232, email: mk@murata-ps.com France: Montigny Le Bretonneux, Tel: +33 (0)1 34 60 01 01, email: france@murata-ps.com Germany: München, Tel: +49 (0)89-544334-0, email: ped.munich@murata-ps.com Japan: Tokyo, Tel: 3-3779-1031, email: sales_tokyo@murata-ps.com Osaka, Tel: 6-6354-2025, email: sales_osaka@murata-ps.com China: Shanghai, Tel: +86 215 027 3678, email: shanghai@murata-ps.com Guangzhou, Tel: +86 208 221 8066, email: guangzhou@murata-ps.com Singapore: Parkway Centre, Tel: +65 6348 9096, email: singapore@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