Datasheet > TPSM843320E

TPSM843320E

更新时间： 2024-04-09 18:59:48

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德州仪器 - TI		电源电路
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描述
具有扩展工作温度范围的 4V 至 18V 输入、3A 同步 SWIFT? 降压电源模块

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TPSM843320E 数据手册

TPSM843320E

ZHCSTQ8 – JANUARY 2024

www.ti.com.cn

4 Pin Configuration and Functions

图 4-1. SIT Package 15-Pin uSiP (Top View)

表 4-1. Pin Functions

TYPE⁽¹⁾

DESCRIPTION

NAME

NO.

Feedback pin for output voltage regulation. Connect this pin to the midpoint of a resistor divider to set

the output voltage.

AGND

BP5

—

Ground return for internal analog circuits

Internal 5V regulator output. Bypass this pin with a 2.2μF capacitor to AGND.

Open-drain power-good indicator

MODE

A resistor to ground selects the current limit, soft-start rate, and PWM ramp amplitude.

Enable pin. Float to enable, enable and disable with an external signal, or adjust the input undervoltage

lockout with a resistor divider.

Ground return for the power stage. This pin is internally connected to the source of the low-side

MOSFET.

PGND

7, 8, 9

—

Input power to the power stage. Low impedance bypassing of these pins to PGND is critical. A 47nF to

100nF capacitor from VIN to PGND close to IC is required.

VIN

DNC

Switch node of the module, used for monitoring only

Supply for the internal high-side MOSFET gate driver. This pin is monitoring only because the capacitor

to SW pin is integrated

BOOT

SYNC/

FSEL

Frequency select and external clock synchronization. A resistor to ground sets the switching frequency

of the device. An external clock can also be applied to this pin to synchronize the switching frequency.

VOUT

—

Buck output voltage. Connect output capacitors to this node.

Thermal pad connected to PGND

PAD/

PGND

(1) I = input, O = output

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English Data Sheet: SLUSFH2

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