TPS61032 5-V Output, 1-A, 96% Efficient Boost Converter w/20uA Iq in TSSOP-16 | TI.com

TPS61032
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5-V Output, 1-A, 96% Efficient Boost Converter w/20uA Iq in TSSOP-16

 

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Description

The TPS6103x devices provide a power supply solution for products powered by either a one-cell Li-Ion or Li-polymer, or a two to three-cell alkaline, NiCd or NiMH battery. The converter generates a stable output voltage that is either adjusted by an external resistor divider or fixed internally on the chip. It provides high efficient power conversion and is capable of delivering output currents up to 1 A at 5 V at a supply voltage down to 1.8 V. The implemented boost converter is based on a fixed frequency, pulse-width- modulation (PWM) controller using a synchronous rectifier to obtain maximum efficiency. At low load currents the converter enters Power Save mode to maintain a 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. It can also operate synchronized to an external clock signal that is applied to the SYNC pin. The maximum peak current in the boost switch is limited to a value of 4500 mA.

The converter can be disabled to minimize battery drain. During shutdown, the load is completely disconnected from the battery. A low-EMI mode is implemented to reduce ringing and, in effect, lower radiated electromagnetic energy when the converter enters the discontinuous conduction mode.

Features

  • 96% Efficient Synchronous Boost Converter With
    1000-mA Output Current From 1.8-V Input
  • Device Quiescent Current: 20-µA (Typ)
  • Input Voltage Range: 1.8-V to 5.5-V
  • Fixed and Adjustable Output Voltage Options Up
    to 5.5-V
  • Power Save Mode for Improved Efficiency at Low
    Output Power
  • Low Battery Comparator
  • Low EMI-Converter (Integrated Antiringing Switch)
  • Load Disconnect During Shutdown
  • Over-Temperature Protection
  • Available in a Small 4 mm × 4 mm QFN-16 or in a
    TSSOP-16 Package

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WEBENCH® Designer TPS61032

  Min   Max Range
Vin  V 1.8 to 5.0V
Vout  V 5 to 5V
Iout  A ≤ 3.6A
Ambient Temp  °C -40 to 85°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
TPS61032 Order now 1.8     5.5     5     5     4     1     500     700     0.02     Synchronous Rectification     100     -40 to 85     Converter     Catalog     HTSSOP | 16
QFN | 16    
TPS61030 Order now 1.8     5.5     1.8     5.5     4     1     500     700     0.02     Synchronous Rectification     100     -40 to 85     Converter     Catalog     HTSSOP | 16
QFN | 16    
TPS61031 Order now 1.8     5.5     3.3     3.3     4     1     500     700     0.02     Synchronous Rectification     100     -40 to 85     Converter     Catalog     HTSSOP | 16
QFN | 16