TPS63061 2.5V to 12V input voltage, 93% Efficient, 2.25A Switch Current Limit, Buck-Boost Converter | TI.com

TPS63061
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2.5V to 12V input voltage, 93% Efficient, 2.25A Switch Current Limit, Buck-Boost Converter

 

Description

The TPS6306x devices provide a power supply solution for products powered by either three-cell up to six-cell alkaline, NiCd or NiMH battery, or a one-cell or dual-cell Li-Ion or Li-polymer battery. Output currents can go as high as 2-A while using a dual-cell Li-Ion or Li-polymer battery, and discharge it down to 5 V or lower. The buck-boost converter is based on a fixed frequency, pulse-width-modulation (PWM) controller using synchronous rectification to obtain maximum efficiency. At low load currents, the converter enters power-save mode to maintain high efficiency over a wide load current range. The power-save mode can be disabled, forcing the converter to operate at a fixed switching frequency. The maximum average current in the switches is limited to a typical value of 2.25 A. The output voltage is programmable using an external resistor divider, or is fixed internally on the chip. The converter can be disabled to minimize battery drain. During shutdown, the load is disconnected from the battery.

The devices are available in a 3 mm × 3 mm, 10-pin, WSON (DSC), PowerPAD package.

For all available packages, see the orderable addendum at the end of

Features

  • Input Voltage Range: 2.5 V to 12 V
  • Efficiency: Up to 93%
  • Output Current at 5 V (VIN<10 V): 2 A in Buck Mode
  • Output Current at 5 V (VIN>4 V): 1.3 A in Boost Mode
  • Automatic Transition Between Step Down and Boost Mode
  • Typical Device Quiescent Current: < 30 μA
  • Fixed and Adjustable Output Voltage Options from 2.5 V to 8 V
  • Power-Save Mode for Improved Efficiency at Low Output Power
  • Forced Fixed-Frequency Operation at 2.4 MHz and Synchronization Possible
  • Power Good Output
  • Buck-Boost Overlap Control
  • Load Disconnect During Shutdown
  • Overtemperature Protection
  • Overvoltage Protection

Parametrics

Compare all products in Buck-boost, inverting & split-rail converters (integrated switch) Email Download to Excel
Part number Order Topology Vin (Min) (V) Vin (Max) (V) Vout (Min) (V) Vout (Max) (V) Switch current limit (Typ) (A) Duty cycle (Max) (%) Switching frequency (Min) (kHz) Switching frequency (Max) (kHz) Features Iq (Typ) (mA) Iout (Max) (A) Rating Type Operating temperature range (C) Package Group
TPS63061 Order now Buck-Boost     2.5     12     2.5     8     2.25     100     2200     2600     Enable
Frequency Synchronization
Light Load Efficiency
Load Disconnect
Power Good
Synchronous Rectification
UVLO Fixed    
0.03     1.3     Catalog     Converter     -40 to 85     WSON | 10