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L4963 Datasheet PDF

STMicroelectronics L4963

The L4963 is a monolithic power switching regulator delivering 1.5A at 5.1V. The output voltage is adjustable from 5.1V to 36V, working in discontinuous variable frequency mode. BLOCK DIAGRAM L4963W L4963D The L4963 is mounted in a 12+3+3 lead Powerdip (L4963) and SO20 large (L4963D) plastic packages and requires very few external components.
Part No. L4963
Datasheet L4963 Download
Manufacturer
STMicroelectronics
Description 1.5A SWITCHING REGULATOR
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L4963 datasheet page 1 preview

DESCRIPTION

FEATURES

of the device include remote inhibit, internal current limiting and thermal protection, reset and power fail outputs for microprocessor. June 2000 This is advanced information on a new product now in development or underogin evaluation. Details are subject to change without notice. 1/17 L4963 - L4963D

ABSOLUTE MAXIMUM RATINGS

Symbol SO20 Vi V3–V2 V2 V2 V8 V9, V11 V 10 V13 , V18 V19 , V20 Ptot V7 V8, V10 V9 V12, V16 V17, V18 Powerdip Input Voltage (pin 1 and pin 3 connected togheter) Input to Output Voltage Difference Negative Output DC Voltage Negative Output Peak Voltage at t=0.2 µs, f=50kHz Power Fail Input Reset and Power Fail Output Reset Delay Input Feedback and Inhibit Inputs Oscillator Inputs Total Power Dissipation Tpins ≤ 90°C (Power DIP) (Tamb = 70°C no copper area on PCB) 2 (Tamb = 70°C, 4cm copper area on PCB) Storage & Junction Temperature (Tamb = 70°C 6cm 2 copper area on PCB) Total Power Dissipation Tpins ≤90°C (SO20L) 47 47 –1 –5 25 Vi 5.5 7 5.5 5 1...
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