Conv DC-DC 0.5V to 4.4V Step Up Single-Out 1.8V to 4V 3A 8-Pin WSON EP T/R

Quantity Unit Price(USD) Ext. Price
1 $0.312 $0.31
10 $0.246 $2.46
30 $0.218 $6.54
100 $0.184 $18.40
500 $0.175 $87.50
1000 $0.166 $166.00


*The price is for reference only.
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  • Part Number : TPS61021ADSGR

  • Package/Case : WSON-8

  • Brands : TI

  • Components Categories : Voltage Regulators - DC DC Switching Regulators

  • Datesheet : TPS61021ADSGR DataSheet (PDF)

Quick Inquiry

Please submit RFQ for TPS61021ADSGR or email to us: Email: [email protected], we will contact you in 12 hours.

Overview of TPS61021ADSGR

The TPS61021A provides a power supply solution for portable or smart devices powered by alkaline, NiMH, Li-Mn, or Li-ion batteries. The TPS61021A is capable of outputting 3.3-V voltage and 1.5-A current from a battery discharged to as low as 1.8 V. Capable of operating with 0.5-V input voltage enables the TPS61021A to extend the battery run time.

The TPS61021A operates at 2-MHz switching frequency at heavy load and enters power-save mode at light load to maintain high efficiency over the entire load current range. The device only consumes a 17-µA quiescent current from VOUT in light load condition. During shutdown, the load is completely disconnected from the input. In addition, The TPS61021A provides 4.35-V output overvoltage protection, output short circuit protection, and thermal shutdown protection.

The TPS61021A offers a very small solution size due to low count of external components. It allows the use of small inductors and output capacitors with the 2-MHz switching frequency.

The TPS61021A is available in 2.0-mm × 2.0-mm WSON package.


Key Features

  • Input Voltage Range: 0.5 V to 4.4 V
  • 0.9 V Minimum Input Voltage for Startup
  • Output Voltage Setting Range: 1.8 V to 4.0 V
  • 91% Efficiency at VIN = 2.4 V, VOUT = 3.3 V and
    IOUT = 1.5 A
  • 2.0-MHz Switching Frequency
  • IOUT > 1.5 A at VOUT = 3.3 V when VIN > 1.8 V
  • 17-µA Typical Quiescent Current
  • ±2.5% Reference Voltage Accuracy over –40°C to
  • PFM Operation Mode at Light Load
  • True Disconnection Between Input and Output
    During Shutdown
  • Output Over Voltage Protection
  • Output Short Circuit Protection
  • Thermal Shutdown Protection
  • 2-mm × 2-mm WSON Package


The followings are basic parameters of the part selected concerning the characteristics of the part and categories it belongs to.

Topology Boost Vin (min) (V) 0.5
Vin (max) (V) 4.4 Vout (min) (V) 1.8
Vout (max) (V) 4 Switch current limit (typ) (A) 4.3
Type Converter Regulated outputs (#) 1
Switching frequency (min) (kHz) 50 Switching frequency (max) (kHz) 2000
Iq (typ) (mA) 0.017 Features Bypass Mode Pass-through Mode, Enable, Light Load Efficiency, Load Disconnect, Synchronous Rectification
Duty cycle (max) (%) 90 Operating temperature range (°C) -40 to 125
Rating Catalog

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