LM3475_14 Datasheet, PDF (2/21 Pages) Texas Instruments – Hysteretic PFET Buck Controller

LM3475
SNVS239A – OCTOBER 2004 – REVISED JANUARY 2005
Connection Diagram
1 _FB
2
GND
3 _EN
5
PGATE
4
VIN
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Pin Name
FB
GND
EN
VIN
PGATE
Figure 1. Top View
5 Lead Plastic SOT-23-5
See Package Number DBV0005A
Pin Number
1
2
3
4
5
PIN DESCRIPTION
Description
Feedback input. Connect to a resistor divider between the output and GND.
Ground.
Enable. Pull this pin above 1.5V (typical) for normal operation. When EN is low, the device
enters shutdown mode.
Power supply input.
Gate drive output for the external PFET.
2
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