1-A, 10-V, low-dropout voltage regulator with enable
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 |
Technical article | LDO basics: capacitor vs. capacitance | Aug. 01, 2018 | |
Technical article | LDO Basics: Preventing reverse current | Jul. 25, 2018 | |
Technical article | LDO basics: introduction to quiescent current | Jun. 20, 2018 | |
Selection guide | Low Dropout Regulators Quick Reference Guide (Rev. P) | Mar. 21, 2018 | |
Technical article | LDO basics: noise – part 1 | Jun. 14, 2017 | |
User guide | AN-1424 LP38692-ADJ Evaluation Board (Rev. C) | Dec. 11, 2013 |
Design & development
For additional terms or required resources, click any title below to view the detail page where available.Hardware development
Description
LP38692-Adj 1A Low Dropout CMOS Linear Regulators with Adjustable Output
Features
- Output voltage range of 1.25V - 9V
- 2.5% adjustable pin voltage accuracy (25°C)
- Low dropout voltage: 450mV @ 1A (typ. 5V out)
- Wide input voltage range (2.7V to 10V)
- Precision (trimmed) bandgap reference
- Guaranteed specs for -40°C to +125°C
- 1mA off-state quiescent current
- Thermal overload protection
- Foldback (...)
Design tools & simulation
Reference designs
Design files
-
download TIDA-00534 BOM.pdf (189KB) -
download TIDA-00534 Gerber.zip (1244KB)
Design files
-
download PMP10581 BOM.pdf (189KB)
CAD/CAE symbols
Package | Pins | Download |
---|---|---|
SOT-223 (NDC) | 5 | View options |
WSON (NGG) | 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
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