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CS5111 - 1.4A Switching Regulator

Description

The CS5111 is a dual output power supply integrated circuit.

It contains a 5V ±2%, 100mA linear regulator, a watchdog timer, a linear output voltage monitor to provide a Power On Reset (POR) and a 1.4A current mode PWM switching regulator.

Features

  • s Linear Regulator 5V ± 2% @ 100mA s Switching Regulator 1.4A Peak Internal Switch 120kHz Maximum Switching Frequency 5V to 26V Operating Supply Range s Smart Functions Watchdog RESET ENABLE s Protection Overvoltage Overtemperature Current Limit s 54V Peak Transient Capability Block Diagram VFB1 VFB2 SELECT COMP IBIAS COSC Oscillator Multiplexer + Switcher Error Amplifier COMP VIN Logic Base Drive + + Gnd VSW 1.4A Package Option 24 Lead SO Wide (Internally Fused Leads) VIN NC 1 Current Sense.

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Datasheet Details

Part number CS5111
Manufacturer Cherry Semiconductor Corporation
File Size 188.49 KB
Description 1.4A Switching Regulator
Datasheet download datasheet CS5111 Datasheet

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Full PDF Text Transcription

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CS5111 CS5111 1.4A Switching Regulator with 5V, 100mA Linear Regulator with Watchdog, RESET and ENABLE Description The CS5111 is a dual output power supply integrated circuit. It contains a 5V ±2%, 100mA linear regulator, a watchdog timer, a linear output voltage monitor to provide a Power On Reset (POR) and a 1.4A current mode PWM switching regulator. The 5V linear regulator is comprised of an error amplifier, reference, and supervisory functions. It has low internal supply current consumption and provides 1.2V (typical) dropout voltage at maximum load current. The watchdog timer circuitry monitors an input signal (WDI) from the microprocessor. It responds to the falling edge of this watchdog signal.
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