33997 - Switching Power Supply

Product Overview

Freescale Semiconductor

Part number	33997
Manufacturer	Freescale Semiconductor
File Size	481.88 KB
Description	Switching Power Supply
Datasheet	33997 Datasheet
Additional preview pages of the 33997 datasheet.

Pin 1 2 3 4 Pin Name VKAMOK KA_VPWR CRES VPWR Description Keep-Alive Output Monitoring.

This pin is an "open-drain" output that will be used with a discrete pull-up resistor to VKAM.

When the supply voltage to the 33997 is disconnected or lost, the VKAMOK signal goes low.

Operating Voltage Range 6.0 V up to 26.5 V (40 V transient).
Step-Down Switching Regulator Output VDDH = 5.0 V @ 1400 mA (total).
Linear Regulator with External Pass Transistor VDDL = 3.3 V @ 400 mA.
Low-Power Standby Linear Regulator VKAM = 3.3 V @ 10 mA.
Two 5.0 V @ 200 mA (typical) Sensor Supplies VREF Protected Against Short-to-Battery and Short-to-Ground with Retry Capability.
Undervoltage Shutdown on the VDDL, VDDH Outputs with Retry C.

Other Datasheets by Freescale Semiconductor

Published: Aug 8, 2007 |