ZHCSP20
September 2022
TLV61070A
PRODUCTION DATA
1
特性
2
应用
3
说明
4
Revision History
5
Pin Configuration and Functions
6
Specifications
6.1
Absolute Maximum Ratings
6.2
ESD Ratings
6.3
Recommended Operating Conditions
6.4
Thermal Information
6.5
Electrical Characteristics
6.6
Typical Characteristics
7
Detailed Description
7.1
Overview
7.2
Functional Block Diagram
7.3
Feature Description
7.3.1
Undervoltage Lockout
7.3.2
Enable and Soft Start
7.3.3
Switching Frequency
7.3.4
Current Limit Operation
7.3.5
Pass-Through Operation
7.3.6
Overvoltage Protection
7.3.7
Output Short-to-Ground Protection
7.3.8
Thermal Shutdown
7.4
Device Functional Modes
7.4.1
PWM Mode
7.4.2
Power Save Mode
8
Application and Implementation
8.1
Application Information
8.2
Typical Application
8.2.1
Design Requirements
8.2.2
Detailed Design Procedure
8.2.2.1
Setting the Output Voltage
8.2.2.2
Inductor Selection
8.2.2.3
Output Capacitor Selection
8.2.2.4
Loop Stability, Feedforward Capacitor Selection
8.2.2.5
Input Capacitor Selection
8.2.3
Application Curves
8.3
Power Supply Recommendations
8.4
Layout
8.4.1
Layout Guidelines
8.4.2
Layout Example
9
Device and Documentation Support
9.1
Device Support
9.1.1
第三方产品免责声明
9.2
接收文档更新通知
9.3
支持资源
9.4
Trademarks
9.5
Electrostatic Discharge Caution
9.6
术语表
10
Mechanical, Packaging, and Orderable Information
封装选项
机械数据 (封装 | 引脚)
DBV|6
MPDS026O
散热焊盘机械数据 (封装 | 引脚)
订购信息
zhcsp20_oa
1
特性
输入电压范围:0.5V 至 5.5V
启动时的最小输入电压为 1.3V
输出电压设置范围:2.2V 至 5.5V
两个 69mΩ (LS)/89mΩ (HS) MOSFET
2.5A 谷值开关电流限制
V
IN
= 3.6V、V
OUT
= 5V 且 I
OUT
= 1.0 A 时效率为 92.3%
V
IN
> 1.5V 时开关频率为 1MHz,V
IN
< 1V 时开关频率为 0.55MHz
V
IN
和 SW 关断电流典型值为 0.1µA
在 –40°C 至 +125°C 温度范围内,基准电压精度为 ±2.5%
轻负载下采用自动 PFM 运行模式
V
IN
> V
OUT
时切换为直通模式
在关断期间真正断开输入域输出之间的连接
输出过压和热关断保护
输出短路保护
2.9mm × 1.6mm SOT23-6 (DDC) 6 引脚封装