APW7134 データシートの表示（PDF） - Kingbright

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APW7134

Dual 1.5MHz, 600mA Synchronous Step-Down Converter

Kingbright 

APW7134

Pin Description

Pin No.

1

2

3

4

5

6

7

8

9

10

Name

EN1

FB1

IN2

GND2

SW2

EN2

FB2

IN1

GND1

SW1

Function

Channel 1 Enable Control Input. Drive EN1 above 1.5V to turn on the Channel 1.

Drive EN1 below 0.3V to turn it off. In shutdown situation, all functions are disabled

to decrease the supply current below 1µA.There is no pull high or pull low ability

inside.

Channel 1 Feedback Input. Connect FB1 to the center point of the external resistor

divider. The feedback voltage is 0.6V.

Channel 2 Supply Input. Bypass to GND with a 4.7µF or greater ceramic capacitor.

Ground 2. Connected the exposed pad to GND2.

Channel 2 Power Switch Output. Inductor connection to drains of the internal

PMOSFET and NMOSFET switches.

Channel 2 Enable Control Input. Drive EN2 above 1.5V to turn on the Channel 2.

Drive EN2 below 0.3V to turn it off. In shutdown situation, all functions are disabled

to decrease the supply current below 1µA.There is no pull high or pull low ability

inside.

Channel 2 Feedback Input. Connect FB2 to the center point of the external resistor

divider. The feedback voltage is 0.6V.

Channel 1 Supply Input. Bypass to GND with a 4.7µF or greater ceramic capacitor.

Ground 1. Connected the exposed pad to GND1.

Channel 1 Power Switch Output. Inductor connection to drains of the internal

PMOSFET and NMOSFET switches.

Absolute Maximum Ratings

Symbol

VIN1/IN2

VFB1/FB2

VEN1/EN2

VSW1/SW2

ISW_PEAK

TJ

TSTG

TSDR

VESD

Parameter

Input Supply Voltage (IN1/IN2 to GND1/GND2)

Voltage on FB1 and FB2

Voltage on EN1 and EN2

Voltage on SW1 and SW2

Peak SW Current

Junction temperature

Storage temperature

Soldering temperature, 10 seconds

Minimum ESD rating (Human body mode) (Note 1)

Note 1: The device is ESD sensitive. Handling precautions are recommended.

Value

-0.3 ~ 6

-0.3 ~ VIN1/IN2+0.3

-0.3 ~ VIN1/IN2+0.3

-0.3 ~ VIN1/IN2+0.3

1.3

150

-65 ~ 150

300

±3

Unit

V

V

V

V

A

°C

°C

°C

KV

Thermal Characteristics

Symbol

Parameter

θJA Junction-to-Ambient Resistance in free air (Note 2)

Note 2: θJA is measured on approximately 1¨ square of 1 oz copper.

Value

50

Unit

°C/W

Copyright © ANPEC Electronics Corp.

3

Rev. A.1 - Aug., 2006

www.anpec.com.tw

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