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TPS62736

ACTIVE

High Efficiency Nanopower Buck Converter with 50mA Load Capability | Step-Down

Product details

Vin (min) (V) 2 Vin (max) (V) 5.5 Vout (min) (V) 1.3 Vout (max) (V) 5.3 Iout (max) (A) 0.05 Iq (typ) (mA) 0.00035 Switching frequency (min) (kHz) 2000 Switching frequency (max) (kHz) 2000 Features Enable Operating temperature range (°C) -40 to 85 Rating Catalog Regulated outputs (#) 1 Duty cycle (max) (%) 100 Type Converter
Vin (min) (V) 2 Vin (max) (V) 5.5 Vout (min) (V) 1.3 Vout (max) (V) 5.3 Iout (max) (A) 0.05 Iq (typ) (mA) 0.00035 Switching frequency (min) (kHz) 2000 Switching frequency (max) (kHz) 2000 Features Enable Operating temperature range (°C) -40 to 85 Rating Catalog Regulated outputs (#) 1 Duty cycle (max) (%) 100 Type Converter
VQFN (RGY) 14 12.25 mm² 3.5 x 3.5
  • Industry&3146;s Highest Efficiency at Low Output
    Currents: > 90% With IOUT = 15 µA
  • Ultra-Low Power Buck Converter
    • TPS62736 Optimized for 50-mA Output Current
    • TPS62737 Optimized for 200-mA Output Current
    • 1.3-V to 5-V Resistor Programmable Output Voltage
      Range
    • 2-V to 5.5-V Input Operating Range
    • 380-nA and 375-nA Quiescent Current During Active
      Operation for TPS62736 and TPS62737
    • 10-nA Quiescent Current During Ship Mode Operation
    • 2% Voltage Regulation Accuracy
  • 100% Duty Cycle (Pass Mode)
  • EN1 and EN2 Control
    • Two Power-Off States:Shipmode (Full Power-Off State)
      Standby Mode Includes VIN_OK Indication
  • Input Power-Good Indication (VIN_OK)
    • Push-Pull Driver
    • Resistor Programmable Threshold Level
  • Industry&3146;s Highest Efficiency at Low Output
    Currents: > 90% With IOUT = 15 µA
  • Ultra-Low Power Buck Converter
    • TPS62736 Optimized for 50-mA Output Current
    • TPS62737 Optimized for 200-mA Output Current
    • 1.3-V to 5-V Resistor Programmable Output Voltage
      Range
    • 2-V to 5.5-V Input Operating Range
    • 380-nA and 375-nA Quiescent Current During Active
      Operation for TPS62736 and TPS62737
    • 10-nA Quiescent Current During Ship Mode Operation
    • 2% Voltage Regulation Accuracy
  • 100% Duty Cycle (Pass Mode)
  • EN1 and EN2 Control
    • Two Power-Off States:Shipmode (Full Power-Off State)
      Standby Mode Includes VIN_OK Indication
  • Input Power-Good Indication (VIN_OK)
    • Push-Pull Driver
    • Resistor Programmable Threshold Level

The TPS6273x family provides a highly integrated ultra low power buck converter solution that is well suited for meeting the special needs of ultra-low power applications such as energy harvesting. The TPS6273x provides the system with an externally programmable regulated supply to preserve the overall efficiency of the power-management stage compared to a linear step-down converter. This regulator is intended to step-down the voltage from an energy storage element such as a battery or super capacitor to supply the rail to low-voltage electronics. The regulated output has been optimized to provide high efficiency across low-output currents (<10 µA) to high currents (200 mA).

The TPS6273x integrates an optimized hysteretic controller for low-power applications. The internal circuitry uses a time-based sampling system to reduce the average quiescent current.

To further assist users in the strict management of their energy budgets, the TPS6273x toggles the input power-good indicator to signal an attached microprocessor when the voltage on the input supply has dropped below a preset critical level. This signal is intended to trigger the reduction of load currents to prevent the system from entering an undervoltage condition. In addition, independent enable signals allow the system to control whether the converter is regulating the output, monitoring only the input voltage, or to shut down in an ultra-low quiescent sleep state.

The input power-good threshold and output regulator levels are programmed independently through external resistors.

All the capabilities of TPS6273x are packed into a small footprint 14-lead 3.5-mm × 3.5-mm QFN package (RGY).

The TPS6273x family provides a highly integrated ultra low power buck converter solution that is well suited for meeting the special needs of ultra-low power applications such as energy harvesting. The TPS6273x provides the system with an externally programmable regulated supply to preserve the overall efficiency of the power-management stage compared to a linear step-down converter. This regulator is intended to step-down the voltage from an energy storage element such as a battery or super capacitor to supply the rail to low-voltage electronics. The regulated output has been optimized to provide high efficiency across low-output currents (<10 µA) to high currents (200 mA).

The TPS6273x integrates an optimized hysteretic controller for low-power applications. The internal circuitry uses a time-based sampling system to reduce the average quiescent current.

To further assist users in the strict management of their energy budgets, the TPS6273x toggles the input power-good indicator to signal an attached microprocessor when the voltage on the input supply has dropped below a preset critical level. This signal is intended to trigger the reduction of load currents to prevent the system from entering an undervoltage condition. In addition, independent enable signals allow the system to control whether the converter is regulating the output, monitoring only the input voltage, or to shut down in an ultra-low quiescent sleep state.

The input power-good threshold and output regulator levels are programmed independently through external resistors.

All the capabilities of TPS6273x are packed into a small footprint 14-lead 3.5-mm × 3.5-mm QFN package (RGY).

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Technical documentation

Design & development

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Evaluation board

TPS62736EVM-205 — TPS62736EVM-205 Programmable Output Nanopower Buck Converter with 50mA Load Evaluation Module Board

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User guide: PDF
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Calculation tool

SLVC489 TPS62736/7 Design Help V1.2

Supported products & hardware

Supported products & hardware

Products
Buck converters (integrated switch)
TPS62736 High Efficiency Nanopower Buck Converter with 50mA Load Capability | Step-Down TPS62737 Programmable Output Voltage Ultra-Low Power Buck Converter with up to 200 mA Output Current
Simulation tool

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PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
Reference designs

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The TIDA-00881 reference design is a booster pack that provides a wireless charger and an entire battery managment solution to power any low power TI Launchpad. This design is a  highly integrated power management solution that is well-suited for ultra-low power applications using an off the (...)
Design guide: PDF
Schematic: PDF
Reference designs

TIDA-00668 — 50mA Wireless Charger Booster Pack Reference Design

The TIDA-00668 is a booster pack that provides a wireless charger and an entire battery managment solution to power any low power TI Launchpad. This design is a highly integrated power management solution that is well-suited for ultra-low power applications.

The primary method of storage is an (...)

Design guide: PDF
Schematic: PDF
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VQFN (RGY) 14 View options

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