Specifications
| Type | Description |
|---|---|
| Part Number | TPS61193 |
| Manufacturer | Texas Instruments |
| Product Type | LDO Regulator |
| Category | Power Management |
| Component Type | Power_IC |
| Package Case | HTSSOP / PWP 20-pin TSSOP with exposed thermal pad, 6.50 mm × 4.40 mm nominal body |
| Input voltage operating range | 4.5 V to 40 V |
| LED current sinks | 3 channels |
| Current matching | 1% typ |
| LED string current per channel | Up to 100 mA |
| Dimming ratio | 10000:1 at 100 Hz input PWM frequency |
| Integrated converter topology | Boost and SEPIC |
| Converter output voltage | Up to 45 V |
| Switching frequency range | 300 kHz to 2.2 MHz |
| Fault features | Fault output, input voltage OVP, UVLO, OCP, open LED detection, shorted LED detection, thermal shutdown |
| Package | HTSSOP 20 |
| Body size | 6.50 mm × 4.40 mm nominal |
| VIN absolute maximum voltage | -0.3 V to 50 V |
| SW absolute maximum voltage | -0.3 V to 50 V |
| FB absolute maximum voltage | -0.3 V to 50 V |
| OUT1/OUT2/OUT3 absolute maximum voltage | -0.3 V to 45 V |
| Logic and analog pin absolute maximum voltage | -0.3 V to 5.5 V |
| Ambient temperature range | -40°C to 125°C |
| Junction temperature range | -40°C to 150°C |
| Storage temperature range | -65°C to 150°C |
| Thermal shutdown engage temperature | 165°C typ |
| Thermal shutdown disengage temperature | 145°C typ |
| HBM ESD rating | ±2000 V |
| CDM ESD rating, all other pins | ±500 V |
| CDM ESD rating, corner pins | ±750 V |
| Recommended VIN voltage | 4.5 V to 45 V |
| Recommended SW voltage | 0 V to 45 V |
| Recommended OUT1/OUT2/OUT3 voltage | 0 V to 40 V |
| Recommended FB/FSET/LDO/ISET/VDDIO/EN/FAULT voltage | 0 V to 5.25 V |
| Recommended SYNC/PWM voltage | 0 V to VDDIO/EN |
| Junction-to-ambient thermal resistance | 44.2°C/W |
| Junction-to-case top thermal resistance | 26.5°C/W |
| Junction-to-board thermal resistance | 22.4°C/W |
| Junction-to-top characterization parameter | 0.9°C/W |
| Junction-to-board characterization parameter | 22.2°C/W |
| Junction-to-case bottom thermal resistance | 2.5°C/W |
| Standby supply current | 4.5 µA typ, 20 µA max |
| Active supply current | 5 mA typ, 12 mA max |
| Power-on reset rising threshold | 2.7 V typ |
| Power-on reset falling threshold | 1.5 V typ |
| Thermal shutdown threshold | 150°C min, 165°C typ, 175°C max |
| Thermal shutdown hysteresis | 20°C typ |
| FSET resistor range | 24 kΩ to 219 kΩ |
| ISET resistor range | 24 kΩ to 129 kΩ |
| FB resistor divider range | 5 kΩ to 150 kΩ |
| LDO decoupling capacitor | 1 µF |
| Datasheet Status | request_only |
Product Overview
TPS61193 is a Texas Instruments Power_Management Power_IC for three-channel LED driving. The device provides OUT1, OUT2, and OUT3 high-precision current sink outputs with 1% typical current matching and up to 100 mA LED string current per channel. Its integrated DC-DC converter supports boost and SEPIC operation for LED string power, with converter output voltage up to 45 V and switching frequency from 300 kHz to 2.2 MHz.
The package is HTSSOP / PWP 20-pin TSSOP with an exposed thermal pad and a 6.50 mm × 4.40 mm nominal body. Recommended operating limits include VIN from 4.5 V to 45 V, SW from 0 V to 45 V, OUT1/OUT2/OUT3 from 0 V to 40 V, and FB/FSET/LDO/ISET/VDDIO/EN/FAULT from 0 V to 5.25 V. Design support values include FSET and ISET resistor ranges, an FB resistor divider range, and a 1 µF LDO decoupling capacitor. Fault functions include fault output, input voltage OVP, UVLO, OCP, open LED detection, shorted LED detection, and thermal shutdown.
Key Features
- Three high-precision LED current sink outputs
- Up to 100 mA LED string current per channel
- 1% typical current matching across current sinks
- 10000:1 PWM dimming ratio at 100 Hz input
- Integrated boost and SEPIC converter topology
- Converter output voltage supports up to 45 V
- Switching frequency range from 300 kHz to 2.2 MHz
- Fault output with OVP, UVLO, and OCP functions
- Open LED, shorted LED, and thermal shutdown detection
- HTSSOP 20 package with exposed thermal pad
Typical Applications
- Three-channel LED string drivers
- Boost-powered LED arrays
- SEPIC LED power stages
- PWM-dimmed LED strings
- Current-matched LED channels
- Fault-monitored LED systems
Procurement Notes
When requesting a quote for TPS61193, buyers should confirm the manufacturer, package or case, required quantity, target date code, compliance documents, packing method, destination country and expected delivery schedule.
If alternatives are acceptable, buyers should share the approved vendor list, required electrical or optical limits, package constraints and qualification requirements. Any alternative part should be reviewed by the buyer's engineering team before production use.
For power IC and power device sourcing, voltage rating, current rating, power dissipation, package thermal performance, protection features, qualification grade and application conditions should be reviewed before approval.
FAQ
What type of device is the TPS61193?
The TPS61193 is a Texas Instruments three-channel LED driver in the Power_Management category. It includes OUT1, OUT2, and OUT3 current sink outputs and an integrated boost or SEPIC converter for LED string power.
What input voltage range does TPS61193 support?
The device feature summary lists an input voltage operating range of 4.5 V to 40 V. The recommended operating conditions list VIN from 4.5 V to 45 V, while the VIN absolute maximum rating is -0.3 V to 50 V.
What LED current can each channel provide?
Each current sink channel supports LED string current up to 100 mA. The device has three high-precision current sink outputs, OUT1, OUT2, and OUT3, with 1% typical current matching.
Which protection and fault functions are included?
The extracted datasheet facts list fault output, input voltage overvoltage protection, undervoltage lockout, overcurrent protection, open LED detection, shorted LED detection, and thermal shutdown as device fault features.
Technical Review & Sourcing Note
Prepared by LDeepAI Component Sourcing Team. Reviewed for RFQ, documentation and alternative sourcing use. Last updated: July 8, 2026.
This page is based on manufacturer datasheet information and LDeepAI sourcing review. Specifications should be verified against the official manufacturer datasheet before final procurement or design approval. Final electrical, optical and reliability approval should be confirmed by the buyer's engineering team.