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2.25-MHz 300-mA Step-Down Converter in DDC/TSOT23 Package


Package | PIN: DDC | 5
Temp: Q (-40 to 125)
Carrier: Cut Tape
Qty Price
1-9 $1.27
10-24 $1.14
25-99 $1.05
100-249 $0.90
250-499 $0.83
500-749 $0.68
750-999 $0.54
1000+ $0.48


  • AEC-Q100 Qualified with following results:
    • Device Temperature Grade 1: -40°C to 125°C OperatingJunction Temeperature Range
  • Output Current Up to 300 mA
  • VIN Range From 2 V to 6 V
  • 2.25-MHz Fixed-Frequency Operation in PWM Mode
  • Power-Save Mode at Light Load Currents
  • Output Voltage Accuracy in PWM Mode ±1.5%
  • Fixed Output Voltages
    • 1.80V TPS62243-Q1
    • 1.25V TPS62244-Q1
  • 15-µA Typical Quiescent Current
  • 100% Duty Cycle for Lowest Dropout
  • Available in a TSOT 23 (5) 2.90-mm × 1.60-mm Package

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Texas Instruments  TPS62243QDDCRQ1

The TPS6224x-Q1 devices are high-efficiency synchronous DC/DC step-down convertersproviding a fixed output voltage and up to 300 mA of output current. They offer low powerconsumption for battery-powered/always-on automotive applications like Remote Keyless Entry (RKE)or Passive Entry Passive Start (PEPS) key fobs and base stations. With an input voltage range of 2V to 6 V, the devices support applications powered by Li-MnO2 coin cell batteries, Li-Ionbatteries, two- (2S) and three-cell (3S) alkaline, 3.3-V and 5-V input voltage rails. TheTPS6224x-Q1 operate at a 2.25-MHz fixed switching frequency at high load current and enters thepower-save mode operation at light load currents to maintain high efficiency and low powerconsumption over the entire load current range. The power-save mode is optimized for lowoutput-voltage ripple. In the shutdown mode, the current consumption is reduced to less than 1 µA.The TPS6224x-Q1 allow the use of small inductors and capacitors to achieve a small solution size,and is available in a 5-pin TSOT23 package.