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2.5-A high-efficient buck-boost converter with optimized load step response in tiny WCSP

US ECCN: EAR99 US/Local Export Classification Number

Quality information

RoHS Yes
Lead finish / Ball material SNAGCU
MSL rating / Peak reflow Level-1-260C-UNLIM
Quality, reliability
& packaging information

Information included:

  • RoHS
  • Device marking
  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring
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Packaging information

Package | Pins Package qty | Carrier: Operating temperature range (°C)
DSBGA (YFF) | 15 3,000 | LARGE T&R
Custom reel may be available
-40 to 125
Package | Pins DSBGA (YFF) | 15
Package qty | Carrier: 3,000 | LARGE T&R
Custom reel may be available
Operating temperature range (°C) -40 to 125
View TI packaging information

Features for the TPS63806

  • Two pin-2-pin device options, TPS63805 and TPS63806 with specific application focus
  • Input voltage range: 1.3 V to 5.5 V
    • Device input voltage > 1.8 V for start-up
  • Output voltage range: 1.8 V to 5.2 V (adjustable)
  • High efficiency over the entire load range
    • Power save mode and mode selection for forced PWM-mode
  • Peak current buck-boost mode architecture
    • Defined transition points between buck, buck-boost, and boost operation modes
    • Forward and reverse current operation
    • Start-up into pre-biased outputs
  • Safety and robust operation features
    • Integrated soft start
    • Overtemperature- and overvoltage-protection
    • True shutdown function with load disconnect
    • Forward and backward current limit
  • TPS63805
    • Optimized for smallest solution size of 18.5 mm2 (works with a 22-µF minimum output capacitor)
    • 2-A output current for VI ≥ 2.3 V, VO = 3.3 V
    • 11-µA operating quiescent current
  • TPS63806
    • Optimized for best load step response (180-mV load-step response at a 2 A current step)
    • Up to 2.5-A transient output current
    • 13-µA operating quiescent current

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Description for the TPS63806

The TPS63805 and TPS63806 are high efficiency, high output current buck-boost converters. Depending on the input voltage, they automatically operate in boost, buck, or in a novel 4-cycle buck-boost mode when the input voltage is approximately equal to the output voltage. The transitions between modes happen at defined thresholds and avoid unwanted toggling within the modes to reduce output voltage ripple. The device output voltages are individually set by a resistive divider within a wide output voltage range. The TPS63805 achieves the lowest solution size with a tiny bill of materials. An 11-µA quiescent current enables the highest efficiency for little to no-load conditions.


Qty Price (USD)
1-99 2.262
100-249 1.869
250-999 1.342
1,000+ 1.01