1 Features

• Qualified for Automotive Applications
• AEC-Q100 Qualified With the Following Results:
  • Device Temperature Grade 2
  • Device HBM ESD Classification Level H2
  • Device CDM ESD Classification Level C4B
• High Efficiency – Up to 94%
• Output Current Up to 300 mA
• V_IN Range From 2 V to 6 V
• 2.25-MHz Fixed-Frequency Operation
• Power-Save Mode at Light Load Currents
• Output Voltage Accuracy in PWM Mode ±1.5%
• 1.2-V Fixed Output Voltage
• 15-μA Typical Quiescent Current
• 100% Duty Cycle for Lowest Dropout
• Available in a SOT (5) 2.90-mm × 1.60-mm Package
• Allows < 1-mm Solution Height

2 Applications

• Automotive Applications
• Automotive Body Electronics
  • Body Control Module and Gateway
• Advanced Driver Assistance Systems (ADAS)
  • Front Camera, Surround View, and Park Assist
• Infotainment and Clusters

3 Description

The TPS62242-Q1 device is a highly efficient buck converter optimized for battery-powered portable applications. The device provides up to 300-mA output current from a single Li-Ion cell and is ideal for battery-powered portable applications, automotive applications, and other equipment like Advanced Driver Assistance Systems (ADAS).

With an input voltage range of 2 V to 6 V, the device supports applications powered by Li-Ion batteries with extended voltage range, two- and three-cell alkaline.

The TPS62242-Q1 operates at 2.25-MHz fixed-switching frequency and enters the power-save mode of operation at light load currents to maintain high efficiency over the entire load current range.

The power-save mode is optimized for low output-voltage ripple. In shutdown mode, the current consumption is reduced to less than 1 μA. With 2.25‑MHz fixed frequency and a 1.2-V fixed output voltage, the TPS62242-Q1 device allows the use of small inductors and capacitors to achieve a small solution size.

The TPS62242-Q1 operates over a free-air temperature range of –40°C to 115°C. The device is available in a 5-pin SOT 2.90-mm × 1.60-mm package.

1. For all available packages, see the orderable addendum at the end of the data sheet.

Typical Application Schematic

Efficiency vs Output Current