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TPS61240-Q1
  • TPS61240-Q1
  • TPS61240-Q1

TPS61240-Q1

ACTIVE

2.3-V to 5.5-V input range, 3.5-MHz fixed frequency 450-mA boost converter, AEC-Q100 qualified

Texas Instruments TPS61240-Q1 Product Info

1 April 2026 3

Parameters

Rating

Automotive

Topology

Boost

Vin (max) (V)

5.5

Vin (min) (V)

2.3

Vout (max) (V)

5

Vout (min) (V)

5

Switch current limit (typ) (A)

0.6

Features

Enable, Light-load efficiency, Load Disconnect, Synchronous rectification

Operating temperature range (°C)

-40 to 105

Iq (typ) (A)

0.00003

Duty cycle (max) (%)

100

TI functional safety category

Functional Safety-Capable

Package

WSON (DRV)-6-4 mm² 2 x 2

Features

  • Qualified for automotive applications
  • AEC-Q100 qualified with the following results:
    • Device temperature grade
      • TPS61240IDRVRQ1: grade 3, –40°C to +85°C ambient operating temperature
      • TPS61240TDRVRQ1: grade 2, –40°C to +105°C ambient operating temperature
    • Device HBM ESD classification level 2
    • Device CDM ESD classification level C6
  • Functional Safety-Capable
  • Efficiency > 90% at nominal operating conditions
  • Total DC Output Voltage Accuracy 5 V ±2%
  • Typical 30-µA quiescent current
  • Best in class line and load transient
  • Wide VIN range from 2.3 V to 5.5 V
  • Output current up to 450 mA
  • Automatic PFM/PWM mode transition
  • Low ripple power save mode for improved efficiency at light loads
  • Internal soft start, 250 µs typical start-up time
  • 3.5-MHz typical operating frequency
  • Load disconnect during shutdown
  • Current overload and thermal shutdown protection
  • Only three surface-mount external components required (one MLCC inductor, two ceramic capacitors)
  • Total solution size < 13 mm2
  • Available in a 2 mm × 2 mm WSON package
  • Qualified for automotive applications
  • AEC-Q100 qualified with the following results:
    • Device temperature grade
      • TPS61240IDRVRQ1: grade 3, –40°C to +85°C ambient operating temperature
      • TPS61240TDRVRQ1: grade 2, –40°C to +105°C ambient operating temperature
    • Device HBM ESD classification level 2
    • Device CDM ESD classification level C6
  • Functional Safety-Capable
  • Efficiency > 90% at nominal operating conditions
  • Total DC Output Voltage Accuracy 5 V ±2%
  • Typical 30-µA quiescent current
  • Best in class line and load transient
  • Wide VIN range from 2.3 V to 5.5 V
  • Output current up to 450 mA
  • Automatic PFM/PWM mode transition
  • Low ripple power save mode for improved efficiency at light loads
  • Internal soft start, 250 µs typical start-up time
  • 3.5-MHz typical operating frequency
  • Load disconnect during shutdown
  • Current overload and thermal shutdown protection
  • Only three surface-mount external components required (one MLCC inductor, two ceramic capacitors)
  • Total solution size < 13 mm2
  • Available in a 2 mm × 2 mm WSON package

Description

The TPS61240-Q1 device is a high efficient synchronous step up DC-DC converter optimized for products powered by either a three-cell alkaline, NiCd or NiMH, or one-cell Li-Ion or Li-Polymer battery. The TPS61240-Q1 supports output currents up to 450 mA. The TPS61240-Q1 has an input valley current limit of 500 mA.

TPS61240-Q1 device provides fixed output voltage of 5V-typ with an input voltage range of 2.3 V to 5.5 V and the device supports batteries with extended voltage range. During shutdown, the load is completely disconnected from the battery. The TPS61240-Q1 boost converter is based on a quasi-constant on-time valley current mode control scheme.

The TPS61240-Q1 presents a high impedance at the VOUT pin when shut down. This allows for use in applications that require the regulated output bus to be driven by another supply while the TPS61240-Q1 is shut down.

During light loads the device will automatically pulse skip allowing maximum efficiency at lowest quiescent currents. In the shutdown mode, the current consumption is reduced to less than 1 µA.

TPS61240-Q1 allows the use of a small inductor and capacitors to achieve a small solution size. The TPS61240-Q1 is available in a 2 mm × 2 mm WSON package.

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