Specifications
| Type | Description |
|---|---|
| Part Number | TPS61158 |
| Manufacturer | Texas Instruments |
| Product Type | LDO Regulator |
| Category | Power Management |
| Component Type | Power_IC |
| Package / Case | 6-pin WSON (DRV), 2.00 mm x 2.00 mm body |
| Input voltage range | 2.7 to 5.5 V; recommended operating conditions; source page 4 |
| Output voltage | VIN to 29 V; recommended operating conditions; source page 4 |
| Output load current | 30 mA max; recommended operating conditions; source page 4 |
| Inductor value | 10 to 22 uH; recommended operating conditions; source page 4 |
| Input capacitor | 1 to 10 uF; recommended operating conditions; source page 4 |
| Output capacitor | 0.47 to 2.2 uF; recommended operating conditions; source page 4 |
| Input PWM signal frequency | 20 to 100 kHz; recommended operating conditions; source page 4 |
| Operating ambient temperature | -40 to 85 degC; recommended operating conditions; source page 4 |
| Operating junction temperature | -40 to 125 degC; recommended operating conditions; source page 4 |
| VIN absolute maximum voltage | -0.3 to 6 V; absolute maximum ratings; source page 4 |
| VOUT and LX absolute maximum voltage | -0.3 to 30 V; absolute maximum ratings; source page 4 |
| FB and CTRL absolute maximum voltage | -0.3 to 7 V; absolute maximum ratings; source page 4 |
| Operating junction temperature absolute maximum | -40 to 150 degC; absolute maximum ratings; source page 4 |
| Storage temperature | -65 to 150 degC; absolute maximum ratings; source page 4 |
| ESD rating HBM | +/-2000 V; per ANSI/ESDA/JEDEC JS-001; source page 4 |
| ESD rating CDM | +/-500 V; per JEDEC JESD22-C101; source page 4 |
| Junction-to-ambient thermal resistance | 70.4 degC/W; DRV WSON, 6 pins; source page 4 |
| Junction-to-case top thermal resistance | 94.8 degC/W; DRV WSON, 6 pins; source page 4 |
| Junction-to-board thermal resistance | 39.8 degC/W; DRV WSON, 6 pins; source page 4 |
| Junction-to-top characterization parameter | 2.5 degC/W; DRV WSON, 6 pins; source page 4 |
| Junction-to-board characterization parameter | 40.2 degC/W; DRV WSON, 6 pins; source page 4 |
| Junction-to-case bottom thermal resistance | 10.2 degC/W; DRV WSON, 6 pins; source page 4 |
| Input voltage range | 2.7 to 5.5 V; electrical characteristics, VIN=3.6 V, CTRL=High, IFB current=20 mA, IFB voltage=200 mV, TA=-40 to 85 degC unless noted; source page 5 |
| VIN undervoltage lockout threshold | 2.2 V typ, 2.35 V max; VIN ramp down; source page 5 |
| VIN undervoltage lockout threshold | 2.5 V typ, 2.65 V max; VIN ramp up; source page 5 |
| VIN undervoltage lockout hysteresis | 275 mV typ; electrical characteristics; source page 5 |
| Operating quiescent current into VIN | 0.3 mA typ, 0.5 mA max; device enabled, no switching, no load, VFB=0.4 V; source page 5 |
| Operating quiescent current into VIN | 0.5 mA typ, 1.65 mA max; device enabled, switching at 750 kHz, no load, VFB=0 V; source page 5 |
| Shutdown current | 0.1 uA typ, 1 uA max; CTRL=GND; source page 5 |
| CTRL logic high voltage | 1.2 V min; control logic and timing; source page 5 |
| CTRL logic low voltage | 0.4 V max; control logic and timing; source page 5 |
| CTRL pin internal pull-down resistor | 300 kOhm typ; VCTRL=1.8 V; source page 5 |
| CTRL pulse width to shutdown | 3.5 ms typ; CTRL from high to low; source page 5 |
| Voltage feedback regulation voltage | 194 mV min, 200 mV typ, 206 mV max; Duty=100%; source page 5 |
| FB pin bias current | 2 uA typ; VFB=200 mV; source page 5 |
| VREF filter time constant | 230 us typ; voltage and current regulation; source page 5 |
| N-channel MOSFET on-resistance | 0.6 Ohm typ, 1 Ohm max; VIN=3.6 V, TA=25 degC, IOUT=100 mA; source page 5 |
| Power diode forward voltage | 0.75 V typ, 1 V max; IDIODE=0.2 A; source page 5 |
| LX pin leakage current | 0.1 uA typ, 2 uA max; VLX=28 V; source page 5 |
| Oscillator frequency | 600 kHz min, 750 kHz typ, 900 kHz max; electrical characteristics; source page 5 |
| Maximum duty cycle of boost switching | 88% min, 94% typ; VFB=0 V, measured on drive signal of switch MOSFET; source page 5 |
| NMOS current limit | 0.5 A min, 0.6 A typ, 0.7 A max; VIN=3.6 V, D=DMAX, TA=0 to 85 degC; source page 5 |
| Startup current limit | 360 mA typ; protection and soft start; source page 5 |
| Time step for startup current limit | 8 ms typ; protection and soft start; source page 5 |
| Open LED protection threshold | 27.5 V min, 28.2 V typ, 29 V max; tested at VOUT pin; source page 5 |
| Acknowledge output voltage low | 0.4 V max; open drain, Rpullup=15 kOhm to VIN; source page 5 |
| Thermal shutdown threshold | 160 degC typ; thermal shutdown; source page 5 |
| Thermal shutdown hysteresis | 15 degC typ; thermal shutdown; source page 5 |
| EasyScale detection time | 450 us min; CTRL low; CTRL pin must be low for more than tes_detect during tes_win to select EasyScale mode; source page 6 |
| EasyScale detection delay | 100 us min; EasyScale timing requirements; source page 6 |
| EasyScale detection window time | 3.5 ms max; measured from CTRL high; source page 6 |
| Start time of program stream | 3.5 us min; EasyScale timing requirements; source page 6 |
| End time of program stream | 3.5 us min, 600 us max; EasyScale timing requirements; source page 6 |
| High time of low bit Logic 0 | 3.5 us min, 300 us max; EasyScale timing requirements; source page 6 |
| Low time of low bit Logic 0 | 2 x tH_LB min, 600 us max; EasyScale timing requirements; source page 6 |
| High time of high bit Logic 1 | 2 x tL_HB min, 600 us max; EasyScale timing requirements; source page 6 |
| Low time of high bit Logic 1 | 3.5 us min, 300 us max; EasyScale timing requirements; source page 6 |
| Acknowledge valid time | 3.5 us min; EasyScale timing requirements; source page 6 |
| Duration of acknowledge condition | 900 us max; acknowledge condition active low; applies when RFA bit is set; open drain output requires host pull-up resistor; source page 6 |
| Integrated switch FET rating | 0.6 A, 30 V; device description/features; source page 1 |
| Integrated power diode rating | 30 V; device description/features; source page 1 |
| Maximum LED string | Up to 8 LEDs; typical application and open LED protection note; source page 1 |
| Default feedback voltage | 200 mV; LED current set by external sense resistor RFB; source page 1 |
| PWM dimming ratio | Up to 100:1; feature list; source page 1 |
| Pin 1 function | CTRL, input; control pin for enable control, PWM dimming, and digital dimming; source page 3 |
| Pin 2 function | VIN, input; input supply pin; connect to 2.7 V to 5.5 V supply; source page 3 |
| Pin 3 function | VOUT, output; output of boost converter; source page 3 |
| Pin 4 function | FB, input; feedback pin for current; connect sense resistor from FB to GND; source page 3 |
| Pin 5 function | GND, ground; ground pin; source page 3 |
| Pin 6 function | LX, switching node; connect inductor between VIN and LX; source page 3 |
| Thermal pad function | Solder to analog ground plane; use thermal vias to ground plane for ideal power dissipation if possible; source page 3 |
| Datasheet Status | request_only |
Product Overview
The TPS61158 is a Texas Instruments 30-V WLED boost driver for Power_Management designs. It is supplied in a 6-pin WSON (DRV) package with a 2.00 mm x 2.00 mm body and is specified for a recommended 2.7 to 5.5 V input range. The boost output operating range is VIN to 29 V, with an output load current rating of 30 mA maximum.
The device integrates a 0.6 A, 30 V switch FET and a 30 V power diode. Its voltage feedback regulation point is 200 mV typical, with a 194 mV to 206 mV range, and LED current is set using an external sense resistor connected from FB to GND. The oscillator operates at 750 kHz typical, with a 600 kHz to 900 kHz range.
The CTRL input provides enable control, PWM dimming, and digital dimming. The extracted timing data also defines EasyScale detection, stream, bit, and acknowledge timing. Assembly guidance includes soldering the thermal pad to the analog ground plane and using thermal vias to the ground plane when possible for power dissipation.
Key Features
- 30-V WLED boost driver for up to 8 LEDs
- 2.7 to 5.5 V recommended input range
- VIN to 29 V recommended output voltage range
- 30 mA maximum recommended output load current
- Integrated 0.6 A, 30 V switch FET
- Integrated 30 V power diode
- 200 mV typical feedback regulation voltage
- PWM dimming ratio up to 100:1
- 750 kHz typical oscillator frequency
- Open LED protection threshold 28.2 V typical
- Shutdown current 0.1 uA typical at CTRL=GND
- 6-pin WSON package with exposed thermal pad
Typical Applications
- WLED boost driver circuits
- Up to 8 LED strings
- PWM dimming LED control
- Digital dimming using CTRL input
- EasyScale-programmed LED dimming
- 2.7 to 5.5 V input systems
- Compact WSON power-management assemblies
Procurement Notes
When requesting a quote for TPS61158, 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 input voltage range is specified for TPS61158?
TPS61158 is specified for a recommended operating input voltage range of 2.7 to 5.5 V. The same range is also listed in the electrical characteristics condition set with VIN=3.6 V and TA=-40 to 85 degC unless noted.
How many LEDs can the TPS61158 drive?
The extracted datasheet facts identify the TPS61158 as supporting a maximum LED string of up to 8 LEDs. This is tied to the typical application and open LED protection information for the 30-V WLED boost driver.
What package is used for the TPS61158?
The TPS61158 package is a 6-pin WSON (DRV) with a 2.00 mm x 2.00 mm body. Its thermal pad should be soldered to the analog ground plane, with thermal vias to the ground plane used if possible.
What external passive ranges are recommended?
The recommended operating conditions list a 10 to 22 uH inductor, 1 to 10 uF input capacitor, and 0.47 to 2.2 uF output capacitor for TPS61158 application design.
What control functions are assigned to the CTRL pin?
Pin 1 is CTRL, an input used for enable control, PWM dimming, and digital dimming. The electrical facts specify a 1.2 V minimum logic-high threshold, 0.4 V maximum logic-low threshold, and a 300 kOhm typical internal pull-down resistor.
Technical Review & Sourcing Note
Prepared by LDeepAI Component Sourcing Team. Reviewed for RFQ, documentation and alternative sourcing use. Last updated: July 7, 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.