TPS61165 High Brightness White LED Driver in 2mm x 2mm QFN Package |

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High Brightness White LED Driver in 2mm x 2mm QFN Package



With a 40-V rated integrated switch FET, the TPS61165 device is a boost converter that drives LEDs in series. The boost converter runs at a
1.2-MHz fixed switching frequency with 1.2-A switch current limit, allowing the use of a high-brightness LED in general lighting.

The default white LED current is set with the external sensor resistor Rset, and the feedback voltage is regulated to 200 mV, as shown in the Typical Application drawing below. During the operation, the LED current can be controlled using the one-wire digital interface (EasyScale™ protocol) through the CTRL pin. Alternatively, a pulse-width-modulation (PWM) signal can be applied to the CTRL pin through which the duty cycle determines the feedback reference voltage. In either digital or PWM mode, the TPS61165 device does not burst the LED current; therefore, it does not generate audible noises on the output capacitor. For maximum protection, the device features integrated open-LED protection that disables the TPS61165 device to prevent the output from exceeding its absolute maximum voltage ratings during open LED conditions.


  • 3-V to 18-V Input voltage range
  • 38-V Open LED protection
  • 200-mV Reference voltage with 2% accuracy
  • 1.2-A Switch FET with 1.2-MHz switching frequency
  • Flexible one-wire digital and PWM brightness control
  • Built-in soft start
  • Up to 90% efficiency
  • 2-mm × 2-mm × 0.8-mm 6-Pin WSON package with thermal pad, and SOT-23 package

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Part number Order Channels (#) Vin (Min) (V) Vin (Max) (V) Vout (Min) (V) Vout (Max) (V) Switching frequency (Max) (kHz) Type LED current per channel (mA) LED (#) Topology Shutdown current (Typ) (uA) Peak efficiency (%) LED configuration Function Features Operating temperature range (C) Package Group Package size: mm2:W x L (PKG)
TPS61165 Order now 1     3     18     3     38     1200     Inductive     400     27     Boost     1     90     Parallel
  EasyScale 1-Wire Interface
Load Disconnect During Shutdown    
-40 to 85     SOT-23 | 6
WSON | 6    
6SOT-23: 5 mm2: 1.6 x 2.9 (SOT-23 | 6)
6WSON: 4 mm2: 2 x 2 (WSON | 6)    
LM3697 Order now 3     2.7     5.5     0     40     1100     Inductive     30     30     Boost     1     91     Parallel     Backlighting, LED driver     I2C Control
PWM Control    
-40 to 125     DSBGA | 12     See datasheet (DSBGA)    
LP8860-Q1 Order now 4     3     48     2     48     2200     Inductive     150     32     Boost Controller     1     92         Adjustable Switch Frequency
Boost Sync
Fault Diagnostic
Hybrid Dimming/Phase Shift
I2C Control
Spread Spectrum    
-40 to 125     HLQFP | 32     32HLQFP: 81 mm2: 9 x 9 (HLQFP | 32)    
LP8861-Q1 Order now 4     4.5     40     7     40     2200     Inductive     100     32     Boost
4.5     92         Adjustable Switch Frequency
Boost Sync
Fault Detection
Power-Line FET
Sepic Sync
Spread Spectrum
Temperature Compensation    
-40 to 125     HTSSOP | 20     20HTSSOP: 42 mm2: 6.4 x 6.5 (HTSSOP | 20)    
TPS61160 Order now 1     2.7     18     2.7     26     600