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PT6937 Datasheet(PDF) 1 Page - Texas Instruments |
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PT6937 Datasheet(HTML) 1 Page - Texas Instruments |
1 / 12 page For technical support and more information, see inside back cover or visit www.ti.com Standard Application Features • Dual Outputs (See Ordering Information) • 5V/3.3V Input • Outputs Adjustable • Remote Sensing (Vo1 & Vo2) • Standby Function • Soft-Start Description The PT6935 Excalibur™ series of power modules are dual output integrated switching regulators (ISRs) designed to power the latest mixed signal ICs. The dual output provides power for both the digital I/O logic and a DSP core from a single module. Both output voltages are internally sequenced during power-up and power-down to comply with the requirements of the latest DSP chips. Each output is independently adjustable or can be set to at least one alternative bus voltage with a simple pin-strap. The modules are made available in a space-saving solder- able case. Features include an output current limit and short-circuit protec- tion. • Internal Sequencing • Short Circuit Protection • 23-pin Space-Saving Package • Solderable Copper Case • Ideal Power Source for DSPs C1 = Req’d 330µF * electrolytic C2 = Req’d 330µF * electrolytic C3 = Optional 100µF electrolytic * 300µF for Oscon® or low ESR tantalum -see notes PT6935 C 2 + GND V IN GND 4,5,6 7-11 12-15 18-21 16 C 1 22 C 3 + 23 1 Vo 2 Sense Vo 1 Sense 3 STBY Vo 1 Vo 2 PT6935 Series 11-A 5V/3.3V-Input Dual Output Integrated Switching Regulator SLTS091B Revised (9/30/2001) Ordering Information PT6935 o = +2.5/1.8 Volts PT6936 o = +3.3/2.5 Volts PT6937 o = +3.3/1.8 Volts PT6938 o = +3.3/1.2 Volts PT6939 o = +2.5/1.2 Volts Pin Function 1Vo1 Sense 2No Connect 3 STBY 4Vin 5Vin 6Vin 7GND 8GND 9GND 10 GND 11 GND 12Vo1 Pin Function 13 Vo1 14 Vo1 15 Vo1 16 Vo1 Adjust * 17 No Connect 18 Vo2 19 Vo2 20Vo2 21Vo2 22 Vo2 Sense 23Vo2 Adjust * *Vo1 and Vo2 can be pin-strapped to another voltage. See application note on output voltage adjustment. Pin-Out Information PT Series Suffix (PT1234x) Case/Pin Order Package Configuration Suffix Code Vertical N (ELF) Horizontal A (ELG) SMD C (ELH) (Reference the applicable package code drawing for the dimensions and PC layout) |
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