TD1465 参数 Datasheet PDF下载

T

echcode

®

40V, 600mA, 2MHz/1MHz synchronous Buck Converter

DATASHEET

TD1465

Pin Configurations

Figure 2 Pin Configuration of TD1465(Top View)

Pin Description

Pin Number

Pin Name

Description

High-Side Gate Drive Boost Input. BS supplies the voltage to drive the high-side N-channel MOSFET. At least

1

2

3

BS

10nF capacitor should be connected from SW to BS to supply the high side switch.

GND

FB

Connecting FB with a resistor-divider from the converter

’s

output sets the output voltage from 1V to 80%V

IN

.

Enable Input. EN is a digital input that turns the regulator on or off. EN threshold is 1.4V with 0.2V hysteresis. Pull up

Signal and power ground.

Output feedback Input. The TD1465 senses the feedback voltage via FB and regulates the voltage at 0.8V.

4

EN

with 100kΩ resistor for automatic startup.

Power Input. VIN supplies the power (4.5V to 40V) to the control circuitry, gate drivers and step-down converter

5

VIN

switches. Connecting a ceramic bypass capacitor and a suitably large capacitor between VIN and GND eliminates

switching noise and voltage ripple on the input to the IC.

6

SW

Power Switching Output. It is the Drain of the N-Channel power MOSFET to supply power to the output LC filter.

December, 15, 2012.

Techcode Semiconductor Limited

2

QQ:1929794238