TPS61232 High Efficiency Synchronous Step Up Converter With 5A Switch | TI.com

TPS61232 (ACTIVE)

High Efficiency Synchronous Step Up Converter With 5A Switch

 

Description

The TPS6123x device family is a high efficiency synchronous step up converter with compact solution size. It is optimized for products powered by a one-cell Li-Ion battery, or a regulated power rail of 3.3 V. The IC integrates a 5-A switch and is capable of delivering output currents up to 2.1 A at a 5-V output with a 3.3-V input supply. The device is based on a quasi-constant on-time valley current mode control scheme. The typical operating frequency is 2 MHz, which allows the use of small inductors and capacitors to achieve a small solution size. The TPS61230 and TPS61231 provide an adjustable output voltage via an external resistor divider, and the TPS61232 provides a fixed output voltage of 5 V.

During light loads, the TPS6123x automatically enters power save mode for maximum efficiency at lowest quiescent currents. In shutdown, the load is completely disconnected from the input, and the input current consumption is reduced to 1.5 µA typical. The device integrates a precise low power EN comparator. The EN threshold as well as the hysteresis of the enable comparator are adjustable with external resistors and support application specific system power up and down requirements. Other features like output over voltage protection, thermal shutdown protection, and a power good output are built-in.

The devices are available in a 3 mm × 3 mm × 0.9 mm VSON package.

Features

  • Input Voltage Range: 2.3 V to 5.5 V
  • Output Voltage Range: 2.5 V to 5.5 V
  • Up to 96% Efficiency Synchronous Boost Converter
  • 3.3-V to 5-V Power Conversion with 2.1-A Output
    Current
  • Input Supply Voltage Supervisor with Adjustable
    Threshold/Hysteresis
  • Power Save Mode for Light Load Efficiency
  • Load Disconnect During Shutdown
  • Output Over Voltage Protection
  • Programmable Soft Start
  • Power Good Output
  • 2-MHz Switching Frequency
  • Output Capacitor Discharge (TPS61231)
  • 3 mm × 3 mm × 0.9 mm VSON Package

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WEBENCH® Designer TPS61232

  Min   Max Range
Vin  V 2.3 to 5.5V
Vout  V 5 to 5V
Iout  A ≤ 5A
Ambient Temp  °C -40 to 125°C

Parametrics

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Part number Order Vin (Min) (V) Vin (Max) (V) Vout (Min) (V) Vout (Max) (V) Switch current limit (Typ) (A) Regulated outputs (#) Switching frequency (Min) (kHz) Switching frequency (Max) (kHz) Iq (Typ) (mA) Features Duty cycle (Max) (%) Operating temperature range (C) Type Rating Package Group
TPS61232 Order now 2.3     5.5     5     5     5     1     2000     2000     0.035     Enable
Light Load Efficiency
Load Disconnect
Power Good
Synchronous Rectification    
90     -40 to 85     Converter     Catalog     VSON | 10    
TPS61230 Order now 2.3     5.5     2.5     5.5     5     1     2000     2000     0.035     Enable
Light Load Efficiency
Load Disconnect
Power Good
Synchronous Rectification    
90     -40 to 85     Converter     Catalog     VSON | 10    
TPS61230A Order now 2.5     4.5     2.5     5.5     6     1     1150     1150     0.025     Enable
Light Load Efficiency
Load Disconnect
Synchronous Rectification    
90     -40 to 125     Converter     Catalog     VQFN-HR | 7    
TPS61235P Order now 2.3     5.5     5.1     5.1     8     1     750     1250     0.01     Enable
Light Load Efficiency
Synchronous Rectification    
90     -40 to 85     Converter     Catalog     VQFN-HR | 9    
TPS61236P Order now 2.3     5.5     2.9     5.5     8     1     750     1250     0.01     Enable
Light Load Efficiency
Synchronous Rectification    
90     -40 to 85     Converter     Catalog     VQFN-HR | 9