1-A, 10-V, low-dropout voltage regulator
Product details
Parameters
Package | Pins | Size
Features
- Wide Input Voltage Range (2.7 V to 10 V)
- 2.5% Output Accuracy (25°C)
- Low Dropout Voltage: 450 mV at 1 A
(typical, 5 VOUT) - Precision (Trimmed) Bandgap Reference
- Ensured Specifications for –40°C to 125°C
- 1-µA Off-State Quiescent Current
- Thermal Overload Protection
- Foldback Current Limiting
- 3-Lead TO-252, 5-Lead SOT-223, and 6-Bump WSON Packages
- Enable Pin (LP38692)
- Ground Pin Current: 55 µA (typical) at Full Load
- Precision Output Voltage: 2.5% (25°C) Accuracy
Description
The LP38690 and LP38692 low-dropout CMOS linear regulators provide tight output tolerance (2.5% typical), extremely low dropout voltage (450 mV at a 1-A load current, VOUT = 5 V), and excellent AC performance utilizing ultra low ESR ceramic output capacitors.
The low thermal resistance of the WSON, SOT-223, and TO-252 packages allow the full operating current to be used even in high ambient temperature environments.
The use of a PMOS power transistor means that no DC base drive current is required to bias it allowing ground pin current to remain below 100 µA regardless of load current, input voltage, or operating temperature.
For all available packages, see the orderable addendum at the end of the data sheet.Technical documentation
| Type | Title | Date | |
|---|---|---|---|
| * | Datasheet | LP38690, LP38692 1-A Low Dropout CMOS Linear Regulators Stable with Ceramic Output Capacitors datasheet (Rev. M) | Dec. 03, 2015 |
| Application notes | A Topical Index of TI LDO Application Notes (Rev. F) | Jun. 27, 2019 | |
| 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 | |
| Selection guides | Low Dropout Regulators Quick Reference Guide (Rev. P) | Mar. 21, 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
80-V 10A Power Stage EVM - The LMG1205 half-bridge EVM board is a small, easy to use, power stage with an external PWM signal. The EVM is suitable for evaluating the performance of the LMG1205 driving a GaN half-bridge in many different DC-DC converter topologies. It can be used to estimate the (...)
Features
- Input voltage operates up to 80V
- Simple open loop design to evaluate performance of LMG1205 driving a GaN Half-Bridge
- VDD supply generated from an onboard linear regulator
- Single PWM input on board for PWM signal with < 8ns dead time
- Kelvin sense capability for input and output to measure efficiency
- (...)
Description
Features
- Input voltage operates up to 80V
- Simple open loop design to evaluate performance of LMG5200
- VCC supply generated on board from a loosely regulated supply
- Single PWM input on board for PWM signal with < 8ns dead time
- Kelvin sense capability for input and output to measure efficiency
Design tools & simulation
Reference designs
Design files
-
download TIDA-00609 BOM.pdf (125KB) -
download TIDA-00609 Assembly Drawing.pdf (1219KB) -
download TIDA-00609 PCB.pdf (2187KB) -
download TIDA-00609 CAD Files.zip (24452KB) -
download TIDA-00609 Gerber.zip (7534KB)
CAD/CAE symbols
| Package | Pins | Download |
|---|---|---|
| TO-252 (NDP) | 3 | View options |
| WSON (NGG) | 6 | View options |
Ordering & quality
Recommended products may have parameters, evaluation modules or reference designs related to this TI product.
Support & training
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