TPS61201

ACTIVE

0.3V Input, 3.3V Output Voltage Boost Converter with 1.3A Switches and 'Down Mode' in a 3x3 QFN

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Product details

Parameters

Vin (Min) (V) 0.3 Vin (Max) (V) 5.5 Vout (Min) (V) 3.3 Vout (Max) (V) 3.3 Switch current limit (Typ) (A) 1.35 Regulated outputs (#) 1 Switching frequency (Min) (kHz) 1250 Switching frequency (Max) (kHz) 1650 Iq (Typ) (mA) 0.05 Features Synchronous Rectification Duty cycle (Max) (%) 95 Operating temperature range (C) -40 to 85 Rating Catalog open-in-new Find other Boost converters (integrated switch)

Package | Pins | Size

VSON (DRC) 10 9 mm² 3 x 3 VSON (DRC) 10 9 mm² 3.00 x 3.00 open-in-new Find other Boost converters (integrated switch)

Features

  • More than 90% Efficiency at
    • 300 mA Output Current at 3.3 V
      (VIN ≥ 2.4 V)
    • 600 mA Output Current at 5 V (VIN ≥ 3 V)
  • Automatic Transition between Boost Mode and
    Down Conversion Mode
  • Device Quiescent Current Less than 55 µA
  • Startup into Full Load at 0.5 V Input Voltage
  • Operating Input Voltage Range from
    0.3 V to 5.5 V
  • Programmable Undervoltage Lockout Threshold
  • Output Short Circuit Protection Under all Operating
    Conditions
  • Fixed and Adjustable Output Voltage Options from
    1.8 V to 5.5 V
  • Power Save Mode for Improved Efficiency at Low
    Output Power
  • Forced Fixed Frequency Operation Possible
  • Load Disconnect During Shutdown
  • Overtemperature Protection
  • Small 3 mm × 3 mm VSON-10 Package
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Description

The TPS6120x devices provide a power supply solution for products powered by either a single-cell, two-cell, or three-cell alkaline, NiCd or NiMH, or one-cell Li-Ion or Li-polymer battery. It is also used in fuel cell or solar cell powered devices where the capability of handling low input voltages is essential. Possible output currents depend on the input to output voltage ratio. The devices provide output currents of up to 600 mA at a 5-V output, while using a single-cell Li-Ion or Li-Polymer battery and discharges it down to 2.6 V. The boost converter is based on a fixed frequency, pulse-width-modulation (PWM) controller using synchronous rectification 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 average input current is limited to a maximum value of 1500 mA. The output voltage is 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. The device is packaged in a 10-pin VSON package measuring 3 mm × 3 mm.

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Technical documentation

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Type Title Date
* Datasheet TPS6120x Low Input Voltage Synchronous Boost Converter With 1.3-A Switches datasheet (Rev. E) Dec. 24, 2014
Application notes Performing Accurate PFM Mode Efficiency Measurements (Rev. A) Dec. 11, 2018
Application notes QFN and SON PCB Attachment (Rev. B) Aug. 24, 2018
Selection guides Power Management Guide 2018 (Rev. R) Jun. 25, 2018
Application notes Optimizing Transient Response of Internally Compensated DC-DC Converters (Rev. B) Nov. 29, 2017
Application notes Extending the Soft Start Time Without a Soft Start Pin (Rev. B) Jun. 15, 2017
Application notes Five Steps to a Good PCB Layout of the Boost Converter May 03, 2016
Application notes Basic Calculation of a Boost Converter's Power Stage (Rev. C) Jan. 08, 2014
Application notes IQ: What it is, what it isn’t, and how to use it Jun. 17, 2011
Application notes Minimizing Ringing at the Switch Node of a Boost Converter Sep. 15, 2006

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Hardware development

EVALUATION BOARDS Download
document-generic User guide
$49.00
Description

The TPS61201EVM-179 is an evaluation module for the TPS61201 low input voltage synchronous boost converter. The TPS61200 provides a power supply solution for products powered by either a single-cell, two-cell, or three-cell alkaline, NiCd or NiMH, or one-cell Li-Ion or Li-polymer battery.

Features
  • Input voltage: 0.3 V to 5.5 V
  • Startup into full load at 0.5 V input voltage
  • Fixed output voltage: 3.3 V
  • Switch current limit: 1.5 A (max)
  • More than 90% efficiency at:
    • 600 mA output current at 3.3 V (VIN ≥ 1.2 V)
    • 600 mA output current at 5 V (VIN ≥ 3.3 V)
  • Quiescent current: < 55 μA
  • Package: 3x3 QFN

Design tools & simulation

GERBER FILES Download
SLVC123.ZIP (107 KB)

CAD/CAE symbols

Package Pins Download
VSON (DRC) 10 View options

Ordering & quality

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