SBVS463 October 2025 TPS7E81-Q1
ADVANCE INFORMATION
- 1
- 1 Features
- 2 Applications
- 3 Description
- 4 Pin Configuration and Functions
- 5 Specifications
- 6 Detailed Description
-
7 Application and Implementation
- 7.1
Application Information
- 7.1.1 Adjustable Device Feedback Resistor Selection
- 7.1.2 Recommended Capacitor Types
- 7.1.3 Input and Output Capacitor Selection
- 7.1.4 Reverse Current
- 7.1.5 Feed-Forward Capacitor
- 7.1.6 Dropout Voltage
- 7.1.7 Estimating Junction Temperature
- 7.1.8 Power Dissipation (PD)
- 7.1.9 Power Dissipation Versus Ambient Temperature
- 7.2 Typical Application
- 7.3 Power Supply Recommendations
- 7.4 Layout
- 7.1
Application Information
- 8 Device and Documentation Support
- 9 Revision History
- 10Mechanical, Packaging, and Orderable Information
封裝選項
機械數(shù)據(jù) (封裝 | 引腳)
散熱焊盤機械數(shù)據(jù) (封裝 | 引腳)
訂購信息
3 Description
The TPS7E81-Q1 low-dropout (LDO) linear voltage regulator is a low quiescent current device designed to connect to the battery in the automotive applications and supports wide input voltage range from 3V to 40V. The wide output range is from 1.2V to 38V for the adjustable configuration and 1.8V to 12V for the fixed configuration and up-to 150mA of load current. With only an 2.8μA quiescent current at no-load, the device is a good design for powering always-on components such as microcontrollers (MCUs), gate drivers and controller area network (CAN) transceivers in standby systems.
The TPS7E81-Q1 supports very tight DC accuracy of ±1.2% over line, load and temperature range. The device responds quickly to line and load transients and controls quiescent current in dropout operation.
The TPS7E81-Q1 has built-in protection mechanism for overcurrent, over-temperature and over-power delivery for reliable operation of the LDO. The TPS7E81-Q1 is stable with an output capacitor range of 2.2μF to 100μF.
The TPS7E81-Q1 is available in a 2.0mm × 2.0mm, 6-pin WSON (wettable flank) (DRV-WF), 3.0mm × 3.0mm, 8-pin HVSSOP (DGN) and 2.9mm × 2.8mm, 5-pin SOT-23 (DBV) package for fixed and adjustable outputs.
| PART NUMBER | PACKAGE(1) | PACKAGE SIZE(2) |
|---|---|---|
| TPS7E81-Q1 | DBV (SOT-23, 5) | 2.9mm × 2.8mm |
| DRV (WSON, 6) | 2.0mm × 2.0mm | |
| DGN (HVSSOP, 8) | 3.0mm × 3.0mm |
Figure 3-1 Typical
Application