ZHCSOO0C
september 2021 – june 2023
TPS7A94
PRODUCTION DATA
1
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
Output Voltage Setting and Regulation
7.3.2
Ultra-Low Noise and Ultra-High Power-Supply Rejection Ratio (PSRR)
7.3.3
Programmable Current Limit and Power-Good Threshold
7.3.4
Programmable Soft Start (NR/SS Pin)
7.3.5
Precision Enable and UVLO
7.3.6
Active Discharge
7.3.7
Thermal Shutdown Protection (TSD)
7.4
Device Functional Modes
7.4.1
Normal Operation
7.4.2
Dropout Operation
7.4.3
Disabled
7.4.4
Current-Limit Operation
8
Application and Implementation
8.1
Application Information
8.1.1
Output Voltage Restart (Overshoot Prevention Circuit)
8.1.2
Precision Enable (External UVLO)
8.1.3
Undervoltage Lockout (UVLO) Operation
8.1.4
Dropout Voltage (VDO)
8.1.5
Power-Good Feedback (FB_PG Pin) and Power-Good Threshold (PG Pin)
8.1.6
Adjusting the Factory-Programmed Current Limit
8.1.7
Programmable Soft-Start and Noise-Reduction (NR/SS Pin)
8.1.8
Inrush Current
8.1.9
Optimizing Noise and PSRR
8.1.10
Adjustable Operation
8.1.11
Paralleling for Higher Output Current and Lower Noise
8.1.12
Recommended Capacitor Types
8.1.13
Load Transient Response
8.1.14
Power Dissipation (PD)
8.1.15
Estimating Junction Temperature
8.1.16
TPS7A94EVM-046 Thermal Analysis
8.2
Typical Application
8.2.1
Design Requirements
8.2.2
Detailed Design Procedure
8.2.3
Application Curves
8.3
Power Supply Recommendations
8.4
Layout
8.4.1
Layout Guidelines
8.4.1.1
Board Layout
8.4.1.2
Layout Example
9
Device and Documentation Support
9.1
Device Support
9.1.1
Development Support
9.1.1.1
Evaluation Modules
9.1.1.2
Spice Models
9.1.2
Device Nomenclature
9.2
Documentation Support
9.2.1
Related Documentation
9.3
接收文档更新通知
9.4
支持资源
9.5
Trademarks
9.6
静电放电警告
9.7
术语表
10
Mechanical, Packaging, and Orderable Information
10.1
Mechanical Data
封装选项
请参考 PDF 数据表获取器件具体的封装图。
机械数据 (封装 | 引脚)
DSC|10
散热焊盘机械数据 (封装 | 引脚)
订购信息
zhcsoo0c_oa
zhcsoo0c_pm
1
特性
超低输出噪声:
0.46μV
RMS
(典型值 10Hz 至 100kHz)
高电源纹波抑制 (PSRR):
100Hz 时为 102dB
1 kHz 时为 110 dB
10 kHz 时为 95 dB
100 kHz 时为 78 dB
在 1MHz 时为 50dB
整个线路、负载和温度范围内的精度:1%
低压降:150 mV (1 A)
宽输入电压范围:1.7 V 至 5.7 V
宽输出电压范围:0 V 至 5.5 V
并行通道,可实现更低的噪声和更高的电流
快速瞬态响应
精密使能和 UVLO
可编程电流限制
可编程 PG 阈值
可调启动浪涌控制
开漏电源正常状态 (PG) 输出
封装:3.00mm × 3.00mm 10 引脚 WSON:
JEDEC R
θJA
:46.1°C/W
EVM R
θJA
:25.6°C/W
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