CS5112 is a 1.4A switching regulator with a 5V, 100mA linear regulator, watchdog, reset, and enable
The CS5112 is an integrated circuit designed as a dual output power supply. It combines a 5V linear regulator with a watchdog timer, reset functionality, and enable control alongside a 1.4A current mode PWM switching regulator capable of various topologies.
The device includes protection features such as load dump capability, current limiting for both outputs, and overtemperature protection. The 5V linear section provides low dropout voltage, while the switcher operates with an adjustable frequency up to 120kHz.
| Switching Regulator Output Current | 1.4A Peak Internal Switch |
|---|---|
| Linear Regulator Output Voltage | 5V +2% |
| Linear Regulator Dropout Voltage | 1.2V (typical) |
| Operating Supply Voltage Range | 5V to 26V |
| Package Type | 24 Lead SO Wide |
It monitors an input signal from a microprocessor and issues a reset if the correct falling edge signal is not received within the externally programmable time.
The device operates with a supply voltage range between 5V and 26V.
The frequency is adjustable by connecting a capacitor (Cosc) to ground, with a range from approximately 80kHz to 120kHz.