150-mA, low-IQ, low-dropout voltage regulator with enable & low-VOUT
Product details
Parameters
Package | Pins | Size
Features
- 1% Voltage Accuracy at Room Temperature
- Stable with Ceramic Capacitor
- Logic Controlled Enable
- No Noise Bypass Capacitor Required
- Thermal-Overload and Short-Circuit
Protection - Input Voltage Range, 2 V to 6 V
- Output Voltage Range, 0.8 V to 3.3 V
- Output Current, 150 mA
- Output Stable - Capacitors, 1 µF
- Virtually Zero IQ (Disabled), < 10 nA
- Very Low IQ (Enabled), 43 µA
- Low Output Noise, 150 µVRMS
- PSRR, 55 dB at 1 kHz
- Fast Start-Up, 105 µs
Description
The LP3990 regulator is designed to meet the requirements of portable, battery-powered systems providing an accurate output voltage, low-noise, and low-quiescent current. The LP3990 will provide a 0.8-V output from the low input voltage of 2 V at up to a 150-mA load current. When switched into shutdown mode via a logic signal at the enable pin (EN), the power consumption is reduced to virtually zero.
The LP3990 is designed to be stable with space-saving ceramic capacitors with values as low as 1 µF.
Performance is specified for a –40°C to 125°C junction temperature range.
For output voltages other than 0.8 V, 1.2 V, 1.35 V, 1.5 V, 1.8 V, 2.5 V, 2.8 V, or 3.3 V, please contact the Texas Instruments sales office.
Same functionality and pinout but is not an equivalent to the compared device:
Technical documentation
Type | Title | Date | |
---|---|---|---|
* | Datasheet | LP3990 150-mA Linear Voltage Regulator for Digital Applications datasheet (Rev. J) | Sep. 26, 2014 |
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.Design tools & simulation
Reference designs
Design files
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download TIDA-00574 BOM.pdf (231KB) -
download TIDA-00574 Gerber.zip (1991KB)
CAD/CAE symbols
Package | Pins | Download |
---|---|---|
DSBGA (YZR) | 4 | View options |
SOT-23 (DBV) | 5 | View options |
WSON (NGG) | 6 | View options |
Ordering & quality
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Support & training
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