TPS61020 Adjustable, 1.5-A Switch, 96% Efficient Boost Converter with Down-Mode, QFN-10 | TI.com

TPS61020
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Adjustable, 1.5-A Switch, 96% Efficient Boost Converter with Down-Mode, QFN-10

 

Description

The TPS6102x family of devices provide a power supply solution for products powered by either a one-cell, two-cell, or three-cell alkaline, NiCd or NiMH, or one-cell Li-Ion or Li-polymer battery. Output currents can go as high as 200 mA while using a single-cell alkaline battery, and discharge it down to 0.9 V. The device can also be used for generating 5 V at 500 mA from a 3.3-V rail or a Li-Ion battery. The 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 the 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. The maximum peak current in the boost switch is limited to a value of 800 mA, 1500 mA, or 1800 mA depending on the version of the device.

The TPS6102x devices keep the output voltage regulated even when the input voltage exceeds the nominal output voltage. The output voltage can be programmed by 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 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. The device is packaged in a 10-pin VSON PowerPAD package measuring 3 mm x 3 mm (DRC).

Features

  • 96% Efficient Synchronous Boost Converter
  • Output Voltage Remains Regulated When Input
    Voltage Exceeds Nominal Output Voltage
  • Device Quiescent Current: 25 µA (Typ)
  • Input Voltage Range: 0.9 V to 6.5 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 Anti-ringing
    Switch)
  • Load Disconnect During Shutdown
  • Overtemperature Protection
  • Small 3-mm × 3-mm VSON-10 Package

Parametrics

Compare all products in Boost converters (integrated switch) Email Download to Excel
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
TPS61020 Order now 0.9     6.5     1.8     5.5     1.5     1     480     720     0.025     Synchronous Rectification     100     -40 to 85     Converter     Catalog     VSON | 10    
TLV61048 Order now 2.65     5.5     3.3     14     3.7     1     430     1250     0.1     Enable
Light Load Efficiency
Pre-Bias Start-Up    
  -40 to 125     Converter     Catalog     SOT-23 | 6    
TPS61021A Order now 0.5     4.4     1.8     4     4.3     1     50     2000     0.017     Enable
Light Load Efficiency
Load Disconnect
Synchronous Rectification    
90     -40 to 125     Converter     Catalog     WSON | 8    
TPS61022 Order now 0.5     5.5     2.2     5.5     8     1     600     1000     0.027     Enable
Light Load Efficiency
Load Disconnect
Pre-Bias Start-Up
Synchronous Rectification
UVLO Fixed    
97     -40 to 125     Converter     Catalog     VQFN-HR | 7    
TPS61023 Order now 0.5     5.5     2.2     5.5     3.7     1     500     1000     0.02     Enable
Light Load Efficiency
Load Disconnect
Pre-Bias Start-Up
Synchronous Rectification
UVLO Fixed    
97     -40 to 125     Converter     Catalog     SOT-5X3 | 6    
TPS61024 Samples not available 0.9     6.5     3     3     1.5     1     480