TPS62244-Q1 2.25-MHz 300-mA Step-Down Converter in TSOT23 Package | TI.com

TPS62244-Q1 (ACTIVE) 2.25-MHz 300-mA Step-Down Converter in TSOT23 Package

 

Description

The TPS6224x-Q1 devices are high-efficiency synchronous DC/DC step-down converters providing a fixed output voltage and up to 300 mA of output current. They offer low power consumption 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 2 V to 6 V, the devices support applications powered by Li-MnO2 coin cell batteries, Li-Ion batteries, two- (2S) and three-cell (3S) alkaline, 3.3-V and 5-V input voltage rails. The TPS6224x-Q1 operate at a 2.25-MHz fixed switching frequency at high load current and enters the power-save mode operation at light load currents to maintain high efficiency and low power consumption over the entire load current range. The power-save mode is optimized for low output-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.

Features

  • AEC-Q100 Qualified with following results:
    • Device Temperature Grade 1: -40°C to 125°C Operating Junction 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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Parametrics

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Part number Order Vin (Min) (V) Vin (Max) (V) Vout (Min) (V) Vout (Max) (V) Iout (Max) (A) Regulated outputs (#) Switching frequency (Min) (kHz) Switching frequency (Max) (kHz) Iq (Typ) (mA) Features Control mode Duty cycle (Max) (%) Operating temperature range (C) Rating Package Group Type Package size: mm2:W x L (PKG)
TPS62244-Q1 Order now 2     6     1.25     1.25     0.3     1     2250     2250     0.015     Enable
Light Load Efficiency
Over Current Protection
Synchronous Rectification
UVLO Fixed    
Voltage Mode     100     -40 to 125     Automotive     SOT-23-THIN | 5     Converter     5SOT-23-THIN: 8 mm2: 2.8 x 2.9 (SOT-23-THIN | 5)    
TPS62231-Q1 Order now 2.05     6     1.8     1.8     0.5     1     3000     3000     0.022     Enable
Forced PWM
Light Load Efficiency
Synchronous Rectification    
Constant on-time (COT)
DCS-Control    
100     -40 to 105     Automotive     SON | 6     Converter     See datasheet (SON)    
TPS622314-Q1 Order now 2.05     6     1.5     1.5     0.5     1     3000     3800     0.022     Enable
Forced PWM
Light Load Efficiency
Synchronous Rectification    
Voltage Mode
DCS-Control    
100     -40 to 105     Automotive     SON | 6     Converter     See datasheet (SON)    
TPS62242-Q1 Order now 2     6     1.2     1.2     0.3     1     2250     2250     0.015     Enable
Forced PWM
Light Load Efficiency
Synchronous Rectification    
Voltage Mode     100     -40 to 115     Automotive     SOT-23-THIN | 5     Converter     5SOT-23-THIN: 8 mm2: 2.8 x 2.9 (SOT-23-THIN | 5)    
TPS62243-Q1 Order now 2     6     1.8     1.8     0.3     1     2250     2250     0.015     Enable
Forced PWM
Light Load Efficiency
Synchronous Rectification
UVLO Fixed    
Voltage Mode     100     -40 to 125     Automotive     SOT-23-THIN | 5     Converter     5SOT-23-THIN: 8 mm2: 2.8 x 2.9 (SOT-23-THIN | 5)