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Product Detailed Parameters
- Description：IC LED DRV RGLTR PWM 20DSBGA
- Series：-
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Cut Tape (CT),Bulk
- Type：DC DC Regulator
- Topology：Step-Up (Boost)
- Internal Switch(s)：Yes
- Number of Outputs：3
- Voltage - Supply (Min)：2.5V
- Voltage - Supply (Max)：5.5V
- Voltage - Output：2.5V ~ 5.7V
- Current - Output / Channel：1.5A (Flash)
- Frequency：1.92MHz
- Dimming：PWM
- Applications：Backlight, Camera Flash
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：20-UFBGA, DSBGA
- Supplier Device Package：20-DSBGA
- Grade：-
- Qualification：-
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Overview
The TPS61311YFFR is a high-performance, surface-mount, step-up (boost) DC-DC regulator from Texas Instruments. It functions as an LED driver IC with three outputs and supports PWM dimming. The device features a switching frequency of 1.92MHz and provides a flash current capability of 1.5A. It operates within a supply voltage range of 2.5V to 5.5V. The component is housed in a 20-DSBGA package.
Feature Summary
- Integrates a synchronous boost converter topology for efficient power conversion.
- Supports Pulse Width Modulation (PWM) dimming control for precise brightness adjustment.
- Includes internal protection mechanisms such as over-current protection and output over-voltage protection.
Applications
- Camera flash lighting systems
- LED backlight drivers
- Mobile phone illumination circuits
Procurement Notes
Verify the specific suffix 'YFFR' against the manufacturer's datasheet to confirm pinout compatibility and tape-and-reel specifications. Ensure the design accounts for the 20-DSBGA thermal requirements and soldering profile. Cross-reference the part number with official Texas Instruments documentation to validate RoHS compliance status and moisture sensitivity level before finalizing procurement orders.
Selection Notes
Select this component when designing camera flash or backlight applications requiring a compact solution with integrated boost regulation. The 1.92MHz frequency allows for smaller passive components compared to lower-frequency alternatives. Consider the 1.5A flash current rating relative to the target LED array requirements. The 20-DSBGA package is suitable for space-constrained portable electronic designs.
Part Context
This device belongs to the TPS61311 series of LED lighting driver ICs manufactured by Texas Instruments. It is designed specifically for multiple LED camera flash drivers. The series offers a compact form factor with integrated power switches, distinguishing it from discrete boost converter solutions that require external MOSFETs.
Replacement Considerations
The TPS61311YFFT is documented as a parameter-equivalent alternative. Verify package differences between YFFR and YFFT suffixes to ensure mechanical fit and electrical continuity in existing designs.
