10-A Fully-Integrated Synchronous Boost Converter - TPS61088

TPS61088 (ACTIVE)

10-A Fully-Integrated Synchronous Boost Converter

 

Description

The TPS61088 is a high power density, fully integrated synchronous boost converter with a 11-mΩ power switch and a 13-mΩ rectifier switch to provide a high efficiency and small size solution in portable systems. The TPS61088 has wide input voltage range from 2.7 V to 12 V to support applications with single cell or two cell Lithium batteries. The device has 10-A switch current capability and is capable of providing an output voltage up to 12.6 V.

The TPS61088 uses adaptive constant off-time peak current control topology to regulate the output voltage. In moderate to heavy load condition, the TPS61088 works in the pulse width modulation (PWM) mode. In light load condition, the device has two operation modes selected by the MODE pin. One is the pulse frequency modulation (PFM) mode to improve the efficiency and another one is the forced PWM mode to avoid application problems caused by low switching frequency. The switching frequency in the PWM mode is adjustable ranging from 200 kHz to 2.2 MHz by an external resistor. The TPS61088 also implements a programmable soft-start function and an adjustable switching peak current limit function. In addition, the device provides 13.2-V output overvoltage protection, cycle-by-cycle overcurrent protection, and thermal shutdown protection.

The TPS61088 is available in a 4.50-mm × 3.50-mm 20-pin VQFN package.

Features

  • Input Voltage Range: 2.7 to 12 V
  • Output Voltage Range: 4.5 to 12.6 V
  • 10-A Switch Current
  • Up to 91% Efficiency at VIN = 3.3 V, VOUT = 9 V,
    and IOUT = 3 A
  • Mode Selection Between PFM Mode and Forced
    PWM Mode at Light Load
  • 1.0 µA Current into VIN Pin during Shutdown
  • Resistor-Programmable Switch Peak Current Limit
  • Adjustable Switching Frequency: 200 kHz to 2.2
    MHz
  • Programmable Soft Start
  • Output Overvoltage Protection at 13.2 V
  • Cycle-by-Cycle Overcurrent Protection
  • Thermal Shutdown
  • 4.50-mm × 3.50-mm 20-Pin VQFN Package

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Parametrics Compare all products in Boost Converter (Integrated Switch)

 
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)
Rating
Package Group
TPS61088 TPS61089 TPS61175 TPS61178
2.7    2.7    2.9    2.7   
12    12    18    20   
4.5    4.5    2.9     
12.6    12.6    38    20   
11.9    11.4    3.8    8   
1    1    1    1   
200    200    160    200   
2200    2200    2640    2200   
0.11    0.01    3    0.23   
Adjustable Current Limit
Enable
Light Load Efficiency
Synchronous Rectification   
Adjustable Current Limit
Enable
Light Load Efficiency
Synchronous Rectification   
Enable
Frequency Synchronization
Light Load Efficiency   
Adjustable Current Limit
Enable
Frequency Synchronization
Light Load Efficiency
Load Disconnect
Synchronous Rectification   
90    90    93    90   
-40 to 85    -40 to 85    -40 to 85    -40 to 85   
Catalog    Catalog    Catalog    Catalog   
VQFN    VQFN-HR    HTSSOP    VQFN-HR   
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WEBENCH® Designer TPS61088

  Min   Max Range
Vin  V 2.7 to 12.0V
Vout  V 4.5 to 12.6V
Iout  A ≤ 10.6A
Ambient Temp  °C -40 to 125°C


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