Datasheet > HT74173

HT74173

更新时间： 2024-03-03 10:09:34

品牌	Logo	应用领域
台湾合泰/盛群 - HOLTEK		/
页数	文件大小	规格书
20页	2077K
描述
6.0V, 3.0A, 1.2MHz Synchronous Step-Down Converter

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HT74173 数据手册

HT74173

Pin Assignment

SOT89-5

SOT23-5

VDD

AGND

GND

4173

HT74173

VDD

AVDD

HT74173

8 SOP-EP-A

GND SW

GND

Pin Description

Pin No.

8SOP-EP SOT89-5 SOT23-5

Pin Name

Type

Description

AGND

—

Analog ground pin

Chip enable pin. High Active. Internally connect a 1MΩ pull

down resistor

Output power good indicate pin. Connect a 100kΩ pull up

resistor to VDD

—

Output voltage feedback pin. Set output voltage via resistor

dividers R1 and R2

Analog input pin. Connect a 0.1μF ceramic capacitor to GND at

least

AVDD

VDD

—

Power input pin. Connect a 10μF ceramic capacitor to GND at

least

GND

Switching node. Connect to power inductor

Power ground pin

—

Exposed pad. Connect to AGND

Absolute Maximum Ratings

Parameter

VDD, AVDD

Value

-0.3 to +6.4

-0.3 to (V_DD+0.3)

-0.3 to +6.4

-40 to +85

Thermal Limits

+150

Unit

EN, PG, FB

Operating Temperature Range

Output Current

°C

—

°C

Maximum Junction Temperature

Storage Temperature Range

Lead Temperature (Soldering 10s)

-60 to +150

+300

Human Body Model

Machine Model

8SOP-EP

4000

ESD Susceptibility

200

125

Junction-to-Ambient Thermal Resistance, θ_JA

°C/W

SOT23-5

220

Rev. 1.00

August 26, 2023

1 234 5 6 7...20

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