Datasheet > HT73Hxx

HT73Hxx

更新时间： 2024-11-11 15:19:07

品牌	Logo	应用领域
台湾合泰/盛群 - HOLTEK		/
页数	文件大小	规格书
45页	3071K
描述
HT73Hxx

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HT73Hxx 数据手册

HT73Hxx

40V, 250mA TinyPower^TMLDO with Protections

Features

General Description

• Low power consumption

• Low voltage drop

The HT73Hxx series is a set of low power consumption

high voltage regulator implemented in a BCD

technology, which ensures low voltage drop and low

quiescent current. They allow input voltages as high

• Low temperature coeﬃcient

• High input voltage (up to 40V)

• Output voltage accuracy: tolerance ±1.5%

• Soft start function

as 40V. They are available with several ﬁxed output

voltages ranging from 2.1V to 5.0V.

The soft start function controls the output slew rate to

prevent the overshooting phenomenon when power

on. The enable pin, CE, accepts CMOS level as logic

input. When CE goes low, a fast discharging path

pulls output voltage low a via 300Ω resistor. The

internally output over current protection prevents the

HT73Hxx from being burned even if the output node

shorts to ground. The over temperature protection

ensures that the junction temperature will not exceed

150°C. The soft start function inhibits the output

overshooting when power on.

• Over current protection

• Over temperature protection

• Package types: 3-pin SOT89, 5-pin SOT23

Applications

• Industrial/Automotive Application

• Power Meter, Water Meter, Smart Meter

• Portable/Battery-Powered Equipment

Selection Table

Part No.

HT73H21

HT73H23

HT73H25

HT73H27

HT73H30

HT73H33

HT73H36

HT73H40

HT73H44

HT73H50

Output Voltage

2.1V

Package

Marking

2.3V

2.5V

2.7V

3.0V

SOT89

SOT23-5

HT73Hxx (for SOT89)

3Hxx (for SOT23-5)

3.3V

3.6V

4.0V

4.4V

5.0V

Note: “xx” stands for output voltages.

Rev. 1.30

May 12, 2023

12 3 4 5 6 7...45

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