500-mA, 18-V, ultra-low-IQ, high-accuracy, adjustable low-dropout voltage regulator with power good
Product details
Parameters
Package | Pins | Size
Features
- Ultra-low IQ: 2.0 µA
- Input voltage: 2.4 V to 18 V
- Output voltage options available:
- Fixed: 1.25 V to 5.5 V
- Adjustable: 1.24 V to 17.4 V
- 1% accuracy over temperature
- Low dropout: 590 mV (max) at 500 mA
- Open-drain, power-good output
- Active overshoot pulldown protection
- Thermal shutdown and overcurrent protection
- Operating junction temperature: –40°C to +125°C
- Stable with 1-µF output capacitors
- Package: 6-pin WSON
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Description
The TPS7A26 low-dropout (LDO) linear voltage regulator supports a 2.4-V to 18-V input voltage range with very-low quiescent current (IQ). These features help modern appliances meet increasingly stringent energy requirements and help extend battery life in portable-power solutions.
The TPS7A26 is available in both fixed and adjustable versions. For more flexibility or higher output voltages, the adjustable version uses feedback resistors to set the output voltage from 1.24 V to 17.4 V. Both versions have 1% output regulation accuracy that provides precision regulation for microcontroller (MCU) references.
With the open-drain, power-good (PG) output the device can provide a reset to an MCU or be wire-ORed and level-shifted with other open-drain PGs to provide a system-wide PG or reset.
The TPS7A26 LDO operates more efficiently than standard linear regulators because the maximum dropout voltage is less than 590 mV at 500 mA of current. This maximum dropout voltage allows for 87.7% efficiency from a 5.7-V input voltage (VIN) to
5.0-V output voltage (VOUT).
For lower power applications, consider the TPS7A25.
Same functionality but is not pin-for-pin or parametrically equivalent to the compared device:
Technical documentation
Type | Title | Date | |
---|---|---|---|
* | Datasheet | TPS7A26 500-mA, 18-V, Ultra-Low IQ, Low-Dropout Linear Voltage Regulator With Power-Good datasheet (Rev. B) | Oct. 11, 2019 |
User guide | TPS7A26EVM-021 Evaluation Module User's Guide | Dec. 07, 2018 | |
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 TPS7A26 evaluation module (EVM) is designed for a typical configuration to evaluate the operation and performance of the TPS7A26 device, which is a 500-mA low-dropout (LDO) linear regulator.
TPS7A26EVM-021 is configured to be a reference design for engineering applications requiring current to a (...)
Features
- Supports input voltages from 2.4 V to 18 V
- Supports output voltages from 1.24 V to 17.7 V
- Low quiescent current (IQ): 2.5 µA (typ)
- Internal soft start to limit inrush current
- Power good
Design tools & simulation
Reference designs
Design files
-
download TIDA-010046 BOM Files.zip (258KB) -
download TIDA-010046 Assembly Files.zip (525KB) -
download TIDA-010046 Layer Plots.zip (2991KB) -
download TIDA-010046 CAD Files.zip (7249KB) -
download TIDA-010046 Gerber.zip (1004KB)
CAD/CAE symbols
Package | Pins | Download |
---|---|---|
WSON (DRV) | 6 | 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
Recommended products may have parameters, evaluation modules or reference designs related to this TI product.
Support & training
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