Specifications
| Type | Description |
|---|---|
| Part Number | TPS61165 |
| Manufacturer | Texas Instruments |
| Product Type | LDO Regulator |
| Category | Power Management |
| Input Voltage Range | 3 to 18 V; Recommended operating condition, VIN |
| Open LED Protection | 38 V typical; Device option, TA=-40°C to 85°C |
| Output Voltage Range | VIN to 38 V; Recommended operating condition |
| Switch FET Current Limit | 1.2 A; Typical integrated switch current limit |
| Switching Frequency | 1.2 MHz; Fixed boost converter switching frequency |
| Feedback Reference Voltage | 200 mV; Default LED current regulation reference |
| Feedback Reference Accuracy | 2%; Feature specification |
| Efficiency | Up to 90%; Feature specification |
| Recommended Inductor | 10 to 22 uH; Recommended operating condition |
| PWM Dimming Frequency | 5 to 100 kHz; Recommended operating condition |
| Input Capacitor | 1 uF; Recommended operating condition |
| Output Capacitor | 1 to 10 uF; Recommended operating condition |
| Operating Ambient Temperature | -40 to 85 °C; Recommended operating condition |
| Operating Junction Temperature | -40 to 125 °C; Recommended operating condition |
| Absolute Maximum VIN Voltage | -0.3 to 20 V; Voltage with respect to ground |
| Absolute Maximum CTRL Voltage | -0.3 to 20 V; Voltage with respect to ground |
| Absolute Maximum FB and COMP Voltage | -0.3 to 3 V; Voltage with respect to ground |
| Absolute Maximum SW Voltage | -0.3 to 40 V; Voltage with respect to ground |
| Absolute Maximum Operating Junction Temperature | -40 to 150 °C; Absolute maximum rating |
| Storage Temperature | -65 to 150 °C; Absolute maximum rating |
| Quiescent Current | 2.3 mA typical; Device PWM switching, no load; VIN=3.6 V, CTRL=VIN, TA=25°C typical |
| Shutdown Current | 1 uA typical; CTRL=GND, VIN=4.2 V |
| Undervoltage Lockout Threshold | 2.2 to 2.5 V; VIN falling |
| Undervoltage Lockout Hysteresis | 70 mV typical; VIN=3.6 V, CTRL=VIN |
| CTRL Logic High Voltage | 1.2 V minimum; VIN=3 V to 18 V |
| CTRL Logic Low Voltage | 0.4 V maximum; VIN=3 V to 18 V |
| CTRL Pulldown Resistor | 400 min, 800 typ, 1600 max kOhm; VIN=3.6 V, CTRL=VIN |
| CTRL Pulse Width to Shutdown | 2.5 ms typical; CTRL high to low |
| EasyScale Detection Time | 260 us typical; CTRL pin low |
| EasyScale Detection Delay | 100 us typical; VIN=3.6 V, CTRL=VIN |
| EasyScale Detection Window Time | 1 ms typical; Measured from CTRL high |
| Voltage Feedback Regulation Voltage | 196 min, 200 typ, 204 max mV; VIN=3.6 V, CTRL=VIN, TA=-40°C to 85°C |
| PWM Brightness Reference Voltage | 47 min, 50 typ, 53 max mV; VFB=50 mV |
| PWM Brightness Reference Voltage | 17 min, 20 typ, 23 max mV; VFB=20 mV |
| Feedback Input Bias Current | 2 uA typical; VFB=200 mV |
| Oscillator Frequency | 1.0 min, 1.2 typ, 1.5 max MHz; VIN=3.6 V, CTRL=VIN |
| Maximum Duty Cycle | 90% min, 93% typ; VFB=100 mV |
| Minimum On Pulse Width | 40 ns typical; VIN=3.6 V, CTRL=VIN |
| COMP Pin Sink Current | 100 uA typical; VIN=3.6 V, CTRL=VIN |
| COMP Pin Source Current | 100 uA typical; VIN=3.6 V, CTRL=VIN |
| Error Amplifier Transconductance | 240 min, 320 typ, 400 max umho; VIN=3.6 V, CTRL=VIN |
| Error Amplifier Output Resistance | 6 MOhm typical; VIN=3.6 V, CTRL=VIN |
| Error Amplifier Crossover Frequency | 500 kHz typical; 5 pF connected to COMP |
| N-Channel MOSFET On Resistance | 0.3 typ, 0.6 max Ohm; VIN=3.6 V |
| N-Channel MOSFET On Resistance | 0.7 Ohm max; VIN=3.0 V |
| N-Channel Leakage Current | 1 uA typical; VSW=35 V, TA=25°C |
| N-Channel MOSFET Current Limit | 0.96 min, 1.2 typ, 1.44 max A; D=Dmax |
| Startup Current Limit | 0.7 A typical; D=Dmax |
| Half Current Limit Time Step | 5 ms typical; VIN=3.6 V, CTRL=VIN |
| Open LED Protection Threshold | 37 min, 38 typ, 39 max V; Measured on SW pin |
| Open LED Protection Threshold on FB | 50% of Vref; Measured on FB pin, Vref=200 mV and 20 mV |
| VREF Filter Time Constant | 180 us typical; VIN=3.6 V, CTRL=VIN |
| VREF Ramp-Up Time | 213 us typical; Each step, measured as number of cycles of the 1.2-MHz clock |
| Thermal Shutdown Threshold | 160 °C typical; VIN=3.6 V, CTRL=VIN |
| Thermal Shutdown Hysteresis | 15 °C typical; VIN=3.6 V, CTRL=VIN |
| EasyScale Start Time of Program Stream | 2 us minimum; Timing requirement |
| EasyScale End Time of Program Stream | 2 min, 360 max us; Timing requirement |
| EasyScale High Time Low Bit | 2 min, 180 max us; Logic 0 |
| EasyScale Low Time Low Bit | 2 x tH_LB to 360 us; Logic 0 |
| EasyScale High Time High Bit | 2 x tL_HB to 360 us; Logic 1 |
| EasyScale Low Time High Bit | 2 min, 180 max us; Logic 1 |
| Acknowledge Output Voltage Low | 0.4 V maximum; Open drain, Rpullup=15 kOhm to VIN |
| Acknowledge Valid Time | 2 us typical; Acknowledge condition active 0, RFA bit set |
| Duration of Acknowledge Condition | 512 us typical; Acknowledge condition active 0, RFA bit set |
| DRV Junction-to-Ambient Thermal Resistance | 80.7 °C/W; 6-pin WSON DRV package |
| DBV Junction-to-Ambient Thermal Resistance | 210.1 °C/W; 6-pin SOT-23 DBV package |
| DRV Junction-to-Case Top Thermal Resistance | 55.4 °C/W; 6-pin WSON DRV package |
| DBV Junction-to-Case Top Thermal Resistance | 46.8 °C/W; 6-pin SOT-23 DBV package |
| DRV Junction-to-Board Thermal Resistance | 140.2 °C/W; 6-pin WSON DRV package |
| DBV Junction-to-Board Thermal Resistance | 56.7 °C/W; 6-pin SOT-23 DBV package |
| Datasheet Status | request_only |
Product Overview
TPS61165 is a Texas Instruments Power_Management IC for white LED boost-driver applications. The device uses a fixed 1.2 MHz boost converter architecture with an integrated N-channel switch specified for a 1.2 A typical current limit. LED current regulation is based on a 200 mV default feedback reference, with voltage feedback regulation specified from 196 mV minimum to 204 mV maximum under the listed test conditions.
Key Features
- 3 to 18 V recommended input operating range
- VIN to 38 V recommended output voltage range
- 1.2 MHz fixed boost converter switching frequency
- 1.2 A typical integrated switch current limit
- 200 mV default LED current regulation reference
- 2% feedback reference accuracy specification
- Up to 90% efficiency feature specification
- 5 to 100 kHz PWM dimming frequency
- 37 to 39 V open LED protection threshold
- Thermal shutdown at 160°C typical with 15°C hysteresis
Typical Applications
- White LED boost driver circuits
- PWM dimmed LED strings
- Power_Management LED current regulation
- 3 to 18 V input systems
- VIN to 38 V boost outputs
- Compact 6-pin LED driver assemblies
Procurement Notes
When requesting a quote for TPS61165, 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 does TPS61165 support?
TPS61165 has a recommended VIN operating range of 3 to 18 V. Absolute maximum VIN voltage is specified from -0.3 to 20 V with respect to ground.
What output voltage range is specified for TPS61165?
The recommended output voltage range is VIN to 38 V. Open LED protection is specified at 38 V typical, with a 37 V minimum and 39 V maximum threshold measured on the SW pin.
Which packages are listed for TPS61165?
TPS61165 is listed in a 6-pin WSON DRV package measuring 2.00 mm x 2.00 mm and a 6-pin SOT-23 DBV package measuring 2.90 mm x 1.60 mm.
What external capacitor and inductor values are recommended?
Recommended operating conditions list a 10 to 22 uH inductor, a 1 uF input capacitor, and a 1 to 10 uF output capacitor for TPS61165.
Technical Review & Sourcing Note
Prepared by LDeepAI Component Sourcing Team. Reviewed for RFQ, documentation and alternative sourcing use. Last updated: June 30, 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.