AAT1112ITP-0.6-T1 データシートの表示（PDF） - Analog Technology Inc

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AAT1112ITP-0.6-T1

1.5A, 1.4MHz Step-Down Converter

Analog Technology Inc 

AAT1112

1.5A, 1.4MHz Step-Down Converter

Pin Descriptions

Pin #

TSOPJW-12 TDFN33-12

1

12

2

11

3

10

4

9

5

8

6

7

7

6

8, 9, 10, 11

12

4, 5

1, 2, 3

N/A

EP

Symbol

LX

VP

N/C

MODE/SYNC

EN

VIN

FB

GND

PGND

Function

Switching node. Connect the output inductor to this pin. The

switching node is internally connected to the drain of both

high- and low-side MOSFETs.

Input voltage for the power switches.

Not connected.

Connect to ground for PFM/PWM mode and optimized efficien-

cy throughout the load range. Connect high for low noise

PWM operation under all operating conditions. Connect to an

external clock for synchronization (PWM only).

Enable pin. A logic low disables the converter and it con-

sumes less than 1µA of current. When connected high, it

resumes normal operation.

Power supply. Supplies power for the internal circuitry.

Feedback input pin. This pin is connected either directly to the

converter output or to an external resistive divider for an

adjustable output.

Non-power signal ground pin.

Main power ground return pin. Connect to the output and

input capacitor return.

Exposed paddle (bottom); connect to ground as closely as

possible to the device.

Pin Configuration

TSOPJW-12

(Top View)

LX 1

VP 2

N/C 3

MODE/SYNC 4

EN 5

VIN 6

12 PGND

11 GND

10 GND

9 GND

8 GND

7 FB

TDFN33-12

(Top View)

PGND 1

PGND 2

PGND 3

GND 4

GND 5

FB 6

12 LX

11 VP

10 N/C

9 MODE/SYNC

8 EN

7 VIN

2

1112.2007.01.1.1

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