TPS62120DCNT
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Texas Instruments TPS62120DCNT

Manufacturer No:
TPS62120DCNT
Manufacturer:
Texas Instruments
Package:
Tape & Reel (TR)
Description:
IC REG BUCK ADJ 75MA SOT23-8
Delivery:
Payment:
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Product Introduction

Overview

The TPS62120DCNT from Texas Instruments is a highly efficient synchronous step-down DC-DC converter optimized for low-power applications. This device supports up to 75-mA output current and operates within a wide input voltage range of 2 V to 15 V, making it suitable for various power sources including energy harvesting, battery-powered, and line-powered systems.

The converter features an advanced hysteretic control scheme that switches between pulse frequency modulation (PFM) and pulse width modulation (PWM) modes to maintain high efficiency across the entire load current range. It also includes power save mode with a low quiescent current of 11 µA, ensuring minimal power consumption during light loads.

The TPS62120DCNT is available in a small 8-pin SOT-23 package, making it ideal for space-constrained designs. It also includes features such as internal soft start, power good open-drain output, and an open-drain output for output discharge during shutdown.

Key Specifications

Parameter Value
Input Voltage Range 2 V to 15 V
Output Current Up to 75 mA
Output Voltage Range 1.2 V to 5.5 V
Efficiency Up to 96%
Switch Frequency Up to 800 kHz
Quiescent Current in PFM Mode 10 µA
Package Type 8-pin SOT-23
Operating Temperature Range -40°C to 85°C
UVLO Thresholds 2.5 V Rising, 1.85 V Falling

Key Features

  • Advanced hysteretic control scheme for high efficiency in both PFM and PWM modes.
  • Power save mode with 11-µA quiescent current to minimize power consumption at light loads.
  • Synchronous converter with no external rectifier required.
  • Low output ripple voltage for reduced noise.
  • 100% duty cycle for lowest dropout voltage.
  • Internal soft start to prevent inrush current.
  • Power good open-drain output to indicate when the output voltage is in regulation.
  • Open-drain output for output discharge during shutdown.
  • Small package size (8-pin SOT-23) suitable for space-constrained designs.

Applications

  • Low power RF applications.
  • Ultra-low power microprocessors.
  • Energy harvesting systems.
  • Industrial measuring devices.
  • Battery-powered devices.
  • 9-V or 12-V line-powered applications.

Q & A

  1. What is the input voltage range of the TPS62120DCNT?

    The input voltage range is from 2 V to 15 V.

  2. What is the maximum output current of the TPS62120DCNT?

    The maximum output current is up to 75 mA.

  3. What is the efficiency of the TPS62120DCNT?

    The efficiency can be up to 96%.

  4. What is the switch frequency of the TPS62120DCNT?

    The switch frequency can be up to 800 kHz.

  5. What is the quiescent current in PFM mode?

    The quiescent current in PFM mode is typically 10 µA.

  6. What package types are available for the TPS62120DCNT?

    The device is available in an 8-pin SOT-23 package.

  7. What is the operating temperature range of the TPS62120DCNT?

    The operating temperature range is from -40°C to 85°C.

  8. What are the UVLO thresholds for the TPS62120DCNT?

    The UVLO thresholds are 2.5 V rising and 1.85 V falling.

  9. Does the TPS62120DCNT have a power good output?

    Yes, it has an open-drain power good output that indicates when the output voltage is in regulation.

  10. How does the TPS62120DCNT handle output discharge during shutdown?

    The device has an open-drain output that connects the SGND pin to GND during shutdown mode to discharge the output capacitor.

Product Attributes

Function:Step-Down
Output Configuration:Positive
Topology:Buck
Output Type:Adjustable
Number of Outputs:1
Voltage - Input (Min):2V
Voltage - Input (Max):15V
Voltage - Output (Min/Fixed):1.2V
Voltage - Output (Max):5.5V
Current - Output:75mA
Frequency - Switching:Up to 800kHz
Synchronous Rectifier:Yes
Operating Temperature:-40°C ~ 85°C (TA)
Mounting Type:Surface Mount
Package / Case:SOT-23-8
Supplier Device Package:SOT-23-8
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Similar Products

Part Number TPS62120DCNT TPS62120DCNR
Manufacturer Texas Instruments Texas Instruments
Product Status Active Active
Function Step-Down Step-Down
Output Configuration Positive Positive
Topology Buck Buck
Output Type Adjustable Adjustable
Number of Outputs 1 1
Voltage - Input (Min) 2V 2V
Voltage - Input (Max) 15V 15V
Voltage - Output (Min/Fixed) 1.2V 1.2V
Voltage - Output (Max) 5.5V 5.5V
Current - Output 75mA 75mA
Frequency - Switching Up to 800kHz Up to 800kHz
Synchronous Rectifier Yes Yes
Operating Temperature -40°C ~ 85°C (TA) -40°C ~ 85°C (TA)
Mounting Type Surface Mount Surface Mount
Package / Case SOT-23-8 SOT-23-8
Supplier Device Package SOT-23-8 SOT-23-8

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