TPS62243-Q1 2.25-MHz 300-mA Step-Down Converter in DDC/TSOT23 Package | TI.com

TPS62243-Q1 (ACTIVE)

2.25-MHz 300-mA Step-Down Converter in DDC/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 Compare all products in Buck converters (integrated switch)

 
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
TPS62243-Q1 TPS62231-Q1 TPS622314-Q1 TPS62242-Q1 TPS62244-Q1 TPS62260-Q1 TPS62290-Q1
2     2.05     2.05     2     2     2     2.3    
6     6     6     6     6     6     6    
1.8     1.8     1.5     1.2     1.25     0.6     0.6    
1.8     1.8     1.5     1.2     1.25     6     6    
0.3     0.5     0.5     0.3     0.3     0.6     1    
1     1     1     1     1     1     1    
2250     3000     3000     2250     2250     2250     2250    
2250     3000     3800     2250     2250     2250     2250    
0.015     0.022     0.022     0.015     0.015     0.015     0.015    
Enable
Forced Pulse Width Modulation (FPWM) Mode
Light Load Efficiency
Synchronous Rectification
UVLO Fixed    
Enable
Forced Pulse Width Modulation (FPWM) Mode
Light Load Efficiency
Synchronous Rectification    
Enable
Forced Pulse Width Modulation (FPWM) Mode
Light Load Efficiency
Synchronous Rectification    
Enable
Forced Pulse Width Modulation (FPWM) Mode
Light Load Efficiency
Synchronous Rectification    
Enable
Light Load Efficiency
Over Current Protection
Synchronous Rectification
UVLO Fixed    
Enable
Forced Pulse Width Modulation (FPWM) Mode
Light Load Efficiency
Synchronous Rectification    
Enable
Forced Pulse Width Modulation (FPWM) Mode
Light Load Efficiency
Synchronous Rectification    
Voltage Mode     Constant on-time (COT)
DCS-Control    
Voltage Mode
DCS-Control    
Voltage Mode     Voltage Mode     Voltage Mode     Voltage Mode    
100     100     100     100     100     100     100    
-40 to 125     -40 to 105     -40 to 105     -40 to 115     -40 to 125     -40 to 105
-40 to 85    
-40 to 105
-40 to 85    
Automotive     Automotive     Automotive     Automotive     Automotive     Automotive     Automotive    
SOT-23-THIN | 5     SON | 6     SON | 6     SOT-23-THIN | 5     SOT-23-THIN | 5     SOT-23-THIN | 5
WSON | 6    
WSON | 6    
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