NCV4276C

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2

−

+

I

INH

Q

GND

Current Limit and

Saturation Sense

Bandgap

Reference

Thermal

Shutdown

Figure 1. NCV4276C Block Diagram

Error

Amplifier

NC

−

+

I

INH

Q

GND

Current Limit and

Saturation Sense

Bandgap

Reference

Thermal

Shutdown

Figure 2. NCV4276C Adjustable Block Diagram

Error

Amplifier

VA

PIN FUNCTION DESCRIPTION

Pin No.

Symbol

Description

1

I

Input; Battery Supply Input Voltage.

2

INH

Inhibit; Set low−to inhibit.

3

GND

Ground; Pin 3 internally connected to heatsink.

4

NC / VA

Not connected for fixed voltage version / Voltage Adjust Input for adjustable voltage version; use an external

voltage divider to set the output voltage

5

Q

Output: Bypass with a capacitor to GND. See Figures 3 to 8 and Regulator Stability Considerations section.