MC33998 データシートの表示（PDF） - Freescale Semiconductor

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MC33998

Switching Power Supply with Linear Regulators

Freescale Semiconductor 

PIN CONNECTIONS

Table 1. Pin Definitions (continued)

Pin Number

Pin

Name

Definition

22

SNSEN

Sensor Supply Enable Input. The SNSEN pin is an input, which enables the VREF1 and VREF2 supplies.

It allows the control module hardware / software to shut down the sensor supplies.

23

EN

Enable Input. The EN pin is an input, which enables the main switching regulator and all other functions.

When this pin is low, the power supply is in a low quiescent state.

24

VKAM

Keep-Alive (standby) 2.6 V Regulator Output. This is a 2.6 V low quiescent, low dropout regulator for Keep

Alive memory.

33998

4

Analog Integrated Circuit Device Data

Freescale Semiconductor

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