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PT7716C Datasheet(PDF) 1 Page - Texas Instruments |
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PT7716C Datasheet(HTML) 1 Page - Texas Instruments |
1 / 9 page For technical support and more information, see inside back cover or visit www.ti.com PT Series Suffix (PT1234 x ) Case/Pin Order Package Configuration Suffix Code † Vertical N (ENE) Horizontal A (ENF) SMD C (ENG) † Previously known as package styles 1420 & 1430 (Reference the applicable package code drawing for the dimensions and PC board layout) PT7716—3.3V 20-A Low-Voltage Programmable Integrated Switching Regulator SLTS162B (Revised 6/27/2002) Features • +3.3V Input Voltage • 20-A Output Current • 5-bit Programmable: 1.075V to 1.85V (25mV Steps) • VRM 9.0 Compatible • High Efficiency (88%) Description The PT7716 Excalibur™ power module is a 20-A integrated switching regulator (ISR) housed a 27-pin space-saving copper package. Operating from a 3.3V-input bus, the PT7716 produces a tightly regulated supply voltage that is programmable over the range, 1.075V to 1.85V. The output voltage is selected via a 5-bit code. The code adjusts the output voltage in steps of 25mV and is VRM 9.0 compatible. This regulator is ideally suited for applications that employ microprocessor and DSP products that require core supply voltages as low as 1.075V. The PT7716 includes a Shutdown control, Differential Remote Sense, and Short-Circuit Protection. • Differential Remote Sense • Over-Current Protection • 27-Pin Space-Saving Package • Solderable Copper Case • Compatible with PT7744 20A “Current Booster” Standard Application Cin = Required 1500µF electrolytic Cout = Required 330µF electrolytic Lin = Optional 1µH input choke PT7716 432 1 2 6 20-25 12 5 13-19 27 7-11 L O A D C OUT + C IN + PROGRAMMING PINS V IN V OUT SYNC OUT GND REMOTE SENSE ( + ) REMOTE SENSE ( – ) STBY* VID0 VID1 VID2 VID3 L1 1µH GND VID4 6 * For STBY pin: open =output enabled ground =output disabled. Pin-Out Information Pin Function 1 VID0 2 VID1 3 VID2 4 VID3 5STBY * 6 VID4 7Vin 8Vin 9Vin 10 Vin 11 Vin 12 Rem Sense Gnd 13 GND 14 GND Pin Function 15GND 16 GND 17 GND 18 GND 19 GND 20 Vout 21 Vout 22 Vout 23 Vout 24 Vout 25Vout 26 Rem Sense Vout 27 Sync Out Ordering Information PT7716 o = 1.075 to 1.85Volts PT7744 o = 20-A Booster * * Consult the related application note for information on current booster operation. |
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