400-mA, 10-V, low-dropout voltage regulator with enable
Product details
Parameters
Package | Pins | Size
Features
- CAP-FREE DMOS TOPOLOGY:
- Ultra Low Dropout Voltage:
250mV typ at 400mA
Output capacitor not required for stability
- Ultra Low Dropout Voltage:
- UP TO 500mA PEAK, TYPICAL
- FAST TRANSIENT RESPONSE
- VERY LOW NOISE: 28 µVrms
- HIGH ACCURACY: ±1.5% max
- HIGH EFFICIENCY:
IGND = 850 µA at IOUT = 400mA
Not Enabled: IGND = 0.01 µA - 2.5V, 2.85V, 3.0V, 3.3V, AND 5.0V OUTPUT VERSIONS
- OTHER OUTPUT VOLTAGES AVAILABLE UPON REQUEST
- FOLDBACK CURRENT LIMIT
- THERMAL PROTECTION
- SMALL SURFACE-MOUNT PACKAGES:
- SOT23-5 and MSOP-8
- APPLICATIONS
- PORTABLE COMMUNICATION DEVICES
- BATTERY-POWERED EQUIPMENT
- PERSONAL DIGITAL ASSISTANTS
- MODEMS
- BAR-CODE SCANNERS
- BACKUP POWER SUPPLIES
All trademarks are the property of their respective owners.
Description
The REG113 is a family of low-noise, low-dropout linear regulators with low ground pin current. Its new DMOS topology provides significant improvement over previous designs, including low-dropout voltage (only 250mV typ at full load), and better transient performance. In addition, no output capacitor is required for stability, unlike conventional low-dropout regulators that are difficult to compensate and require expensive low ESR capacitors greater than 1µF.
Typical ground pin current is only 850µA (at IOUT = 400mA) and drops to 10nA when not enabled. Unlike regulators with PNP pass devices, quiescent current remains relatively constant over load variations and under dropout conditions.
The REG113 has very low output noise (typically 28µVrms for VOUT = 3.3V with CNR = 0.01µF), making it ideal for use in portable communications equipment. Accuracy is maintained over temperature, line, and load variations. Key parameters are tested over the specified temperature range (40°C to +85°C).
The REG113 is well protectedinternal circuitry provides a current limit which protects the load from damage; futhermore, thermal protection circuitry keeps the chip from being damaged by excessive temperature. The REG113 is available in the SOT23-5 and MSOP-8 packages.
Technical documentation
Type | Title | Date | |
---|---|---|---|
* | Datasheet | DMOS 400mA Low-Dropout Regulator datasheet (Rev. D) | Sep. 08, 2005 |
Application note | LDO Noise Demystified (Rev. B) | Aug. 18, 2020 | |
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 note | LDO PSRR Measurement Simplified (Rev. A) | Aug. 09, 2017 | |
Technical articles | LDO basics: noise – part 1 | Jun. 14, 2017 | |
User guide | Universal Low-Dropout (LDO) Linear Voltage Regulator EVM User's Guide | Oct. 12, 2016 | |
Application note | Packaging Limits Range of Linear Regulators | May 08, 2010 | |
User guide | DEM-SOT23LDO Demonstration Fixture User's Guide (Rev. A) | Jun. 02, 2005 | |
More literature | DMOS Delivers Dramatic Performance Gains to LDO Regulators (EDN mag) | Feb. 14, 2001 |
Design & development
For additional terms or required resources, click any title below to view the detail page where available.Hardware development
Description
The TPS76901EVM-127 evaluation module (EVM) provides designers with an easy layout for using and evaluating the TPS76901 SOT-23 LDO in an application to regulate from 5 V to a selectable output. The EVM includes input and output capacitors.
Features
Same size and TO-220 package. Simplifies designing of the power supply for the core power of low-power TMS320C54x digital signal processors (DSPs).
Description
The TPS76918EVM-127 give designer an easy layout for using and evaluating TPS76918 SOT23 LDO in an application to regulate from 5V to a 1.8V output. It includes input and output capacitors.
Features
Same size and TO220 package. Simplifies designing the core power power supply for low power TMS320C54x DSPs.
Description
The TPS76933EVM-127 evaluation module (EVM) provides designers with an easy layout for using and evaluating the TPS76933 SOT-23 LDO in an application to regulate from 5 V to a 3.3-V output. The EVM includes input and output capacitors.
Features
Same size and TO-220 package. Simplifies designing the power supply for the core power of low-power TMS320C54x digital signal processors (DSPs).
Description
The purpose of this EVM is to facilitate evaluation of the TPS793xx family of LDO regulators. Each EVM package contains one SLVP191 test board, with either a TPS79301DBV linear regulator or a TPS79328DBV linear regulator, as well as supporting passive components. The TPS79301DBV adjustable device (...)
CAD/CAE symbols
Package | Pins | Download |
---|---|---|
SOT-23 (DBV) | 5 | View options |
VSSOP (DGK) | 8 | 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
TI E2E™ forums with technical support from TI engineers
Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.
If you have questions about quality, packaging or ordering TI products, see TI support.