ZHCSGF3B
July 2017 – January 2019
TPS7A92
PRODUCTION DATA.
1
特性
2
应用
3
说明
Device Images
典型应用电路
典型应用图
4
修订历史记录
5
Pin Configuration and Functions
Pin 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
Output Enable
7.3.2
Dropout Voltage (VDO)
7.3.3
Output Voltage Accuracy
7.3.4
High Power-Supply Ripple Rejection (PSRR)
7.3.5
Low Output Noise
7.3.6
Output Soft-Start Control
7.3.7
Power-Good Function
7.3.8
Internal Protection Circuitry
7.3.8.1
Undervoltage Lockout (UVLO)
7.3.8.2
Internal Current Limit (ICL)
7.3.8.3
Thermal Protection
7.4
Device Functional Modes
7.4.1
Normal Operation
7.4.2
Dropout Operation
7.4.3
Disabled
8
Application and Implementation
8.1
Application Information
8.1.1
Adjustable Output
8.1.2
Start-Up
8.1.2.1
Enable (EN) and Undervoltage Lockout (UVLO)
8.1.2.2
Noise-Reduction and Soft-Start Capacitor (CNR/SS)
8.1.2.2.1
Noise Reduction
8.1.2.2.2
Soft-Start and Inrush Current
8.1.3
Capacitor Recommendation
8.1.3.1
Input and Output Capacitor Requirements (CIN and COUT)
8.1.3.1.1
Load-Step Transient Response
8.1.3.2
Feed-Forward Capacitor (CFF)
8.1.4
Power Dissipation (PD)
8.1.5
Estimating Junction Temperature
8.2
Typical Application
8.2.1
Design Requirements
8.2.2
Detailed Design Procedure
8.2.3
Application Curves
9
Power Supply Recommendations
10
Layout
10.1
Layout Guidelines
10.1.1
Board Layout
10.2
Layout Example
11
器件和文档支持
11.1
器件支持
11.1.1
开发支持
11.1.1.1
评估模块
11.1.1.2
Spice 模型
11.1.2
器件命名规则
11.2
文档支持
11.2.1
相关文档
11.3
接收文档更新通知
11.4
社区资源
11.5
商标
11.6
静电放电警告
11.7
术语表
12
机械、封装和可订购信息
封装选项
机械数据 (封装 | 引脚)
DSK|10
MPDS326A
散热焊盘机械数据 (封装 | 引脚)
DSK|10
QFND148E
订购信息
zhcsgf3b_oa
zhcsgf3b_pm
1
特性
整个线路、负载和温度范围内的精度达 1.0%
低输出噪声:4.6µV
RMS
(10Hz–100kHz)
低压降:2A 时 180mV(典型值)
宽输入电压范围:1.4V 至 6.5V
宽输出电压范围:0.8V 至 5.2V
高电源纹波抑制 (PSRR):
直流时为 60dB
100kHz 时为 40dB
1MHz 时为 40dB
快速瞬态响应
通过可选软启动充电电流实现可调节的启动浪涌控制
开漏电源正常 (PG) 输出
R
θJC
= 3.2°C/W
与 22µF 或更大的陶瓷输出电容器一起工作时保持稳定
2.5mm × 2.5mm 10 引脚 WSON 封装