1.5-A, low-dropout voltage regulator with enable
Product details
Parameters
Package | Pins | Size
Features
- 1.5-A Low-Dropout Regulator With Enable
- Available in Fixed and Adjustable (1.2 V to 5.5 V)
Output Versions - High PSRR (49 dB at 10 kHz)
- Ultralow Noise (48 µVRMS, TPS78630)
- Fast Start-Up Time (50 µs)
- Stable With a 1-µF Ceramic Capacitor
- Excellent Load and Line Transient Response
- Very Low Dropout Voltage (390 mV at Full Load,
TPS78630) - 3 × 3 SON PowerPAD, 6-Pin SOT223 and 5-Pin
DDPAK Package - APPLICATIONS
- RF: VCOs, Receivers, ADCs
- Audio
- Bluetooth®, Wireless LAN
- Cellular and Cordless Telephones
- Handheld Organizers, PDAs
Bluetooth Is a trademark of Texas Instruments,
Description
The TPS786 family of low-dropout (LDO) low-power linear voltage regulators features high power-supply rejection ratio (PSRR), ultralow noise, fast start-up, and excellent line and load transient responses in small outline, SOT223-6 and DDPAK-5 packages. Each device in the family is stable, with a small 1-µF ceramic capacitor on the output. The family uses an advanced, proprietary BiCMOS fabrication process to yield extremely low dropout voltages (for example, 390 mV at 1.5 A). Each device achieves fast start-up times (approximately 50 µs with a 0.001-µF bypass capacitor) while consuming very low quiescent current (265 µA, typical). Moreover, when the device is placed in standby mode, the supply current is reduced to less than 1 µA. The TPS78630 exhibits approximately 48 µVRMS of output voltage at 3-V output noise with a 0.1-µF bypass capacitor. Applications with analog components that are noise sensitive, such as portable RF electronics, benefit from the high PSRR, low noise features, and the fast response time.
Technical documentation
| Type | Title | Date | |
|---|---|---|---|
| * | Datasheet | TPS786 Ultralow-Noise, High-PSRR, Fast, RF, 1.5-A Low-Dropout Linear Regulators datasheet (Rev. M) | Sep. 30, 2015 |
| Application notes | Using Thermal Calculation Tools for Analog Components (Rev. A) | Aug. 30, 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 | |
| Application notes | LDO Noise Demystified (Rev. A) | Aug. 09, 2017 | |
| Application notes | LDO PSRR Measurement Simplified (Rev. A) | Aug. 09, 2017 | |
| Technical articles | LDO basics: noise – part 1 | Jun. 14, 2017 | |
| User guides | TPS786/795/79601DRB EVM Users Guide (Rev. A) | Sep. 09, 2016 | |
| User guides | DEM-SOT223LDO Demonstration Fixture | Oct. 15, 2003 | |
| User guides | DEM-TO263LDO Demonstration Fixture | Oct. 15, 2003 | |
| User guides | 1.5 Amp, High PSRR, Low-Noise, Low Dropout Linear Regulator EVM | Sep. 26, 2002 |
Design & development
For additional terms or required resources, click any title below to view the detail page where available.Hardware development
Description
The Texas Instruments DEM-SOT223LDO demonstration module (DEM) helps designers evaluate the operation and performance of Texas Instruments low-dropout regulators (LDOs). This module is compatible with most positive output LDOs offered in the SOT223 (DCQ) package.
Description
Features
- 1.5A Low-Dropout Regulator with Enable
- High PSRR (49 dB at 10 kHz)
- Fast Start-Up Time (50µs)
- Stable with a 1µF Ceramic Capacitor
- Excellent Load/Line Transient Response
- 3 à 3 SON PowerPADâ¢, 6-Pin SOT223 and 5-Pin DDPAK Package
Design tools & simulation
Reference designs
CAD/CAE symbols
| Package | Pins | Download |
|---|---|---|
| DDPAK/TO-263 (KTT) | 5 | View options |
| SON (DRB) | 8 | View options |
| SOT-223 (DCQ) | 6 | View options |
Ordering & quality
Support & training
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Low-dropout linear voltage regulators (LDOs)
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