Automotive 150-mA, 40-V, low-dropout (LDO) linear regulator with fast transient response
Product details
Parameters
Package | Pins | Size
Features
- AEC-Q100 qualified for automotive applications:
- Temperature grade 1: –40°C to +125°C, TA
- Junction temperature: –40°C to +150°C, TJ
- Input voltage range: 3 V to 40 V (42 V max)
- Output voltage range: 3.3 V and 5 V (fixed)
- Output current: up to 150 mA
- Output voltage accuracy: ±1% (max)
- Low dropout voltage:
- 230 mV (max) at 150 mA (VOUT ≥ 3.3 V)
- Low quiescent current:
- 18 µA (typ)
- Excellent line transient response:
- ±2% VOUT deviation during cold-crank
- ±2% VOUT deviation (1-V/µs VIN slew rate)
- Stable with a 2.2-µF or larger capacitor
- Functional Safety-Capable
- Package: 3-pin SOT-223
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Description
The TPS7B83-Q1 is a low-dropout linear regulator designed to connect to the battery in automotive applications. The device has an input voltage range extending to 40 V, which allows the device to withstand transients (such as load dump) that are anticipated in automotive systems. With only an 18-µA quiescent current, the device is an optimal solution for powering always-on components such as microcontrollers (MCUs) and controller area network (CAN) transceivers in standby systems.
The device has state-of-the-art transient response that allows the output to quickly react to changes in load or line (for example, during cold-crank conditions). Additionally, the device has a novel architecture that minimizes output overshoot when recovering from dropout. During normal operation, the device has a tight DC accuracy of ±1% over line, load, and temperature.
Similar but not functionally equivalent to the compared device:
Technical documentation
| Type | Title | Date | |
|---|---|---|---|
| * | Datasheet | TPS7B83-Q1 150-mA, 40-V, Low-Dropout Regulator datasheet | Nov. 17, 2020 |
| User guide | MLTLDO2EVM-037 Evaluation Module User's Guide | May 22, 2020 | |
| Technical articles | LDO basics: capacitor vs. capacitance | Aug. 01, 2018 | |
| Technical articles | LDO Basics: Preventing reverse current | Jul. 25, 2018 | |
| Technical articles | LDO basics: introduction to quiescent current | Jun. 20, 2018 | |
| Technical articles | LDO basics: noise – part 1 | Jun. 14, 2017 |
Design & development
For additional terms or required resources, click any title below to view the detail page where available.Hardware development
Description
The MLTLDO2EVM-037 multipackage low-dropout (LDO) evaluation module (EVM) allows design engineers to evaluate the operation and performance of several common packages of linear regulators for possible use in their own circuit application. This EVM configuration contains a DDA, 3-pin and 5-pin KVU (...)
Features
- Supports most LDO linear regulators in
- DDA package
- 3-pin and 5-pin KVU package
- DCY package
Design tools & simulation
CAD/CAE symbols
| Package | Pins | Download |
|---|---|---|
| SOT-223 (DCY) | 4 | View options |
Ordering & quality
- RoHS
- REACH
- Device marking
- Lead finish/Ball material
- MSL rating/Peak reflow
- MTBF/FIT estimates
- Material content
- Qualification summary
- Ongoing reliability monitoring
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