TPS62400-Q1 Automotive Catalog Dual, Adjustable, 400mA & 600mA, 2.25MHz Step-Down Converter w/ 1-Wire Interface | TI.com

TPS62400-Q1
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Automotive Catalog Dual, Adjustable, 400mA & 600mA, 2.25MHz Step-Down Converter w/ 1-Wire Interface

 

Recommended alternative parts

  • TPS62420-Q1  -  Looking for higher output current (0.6A/1.0A)? Try the TPS62420-Q1
  • TPS62410-Q1  -  Looking for higher output current (0.8A/0.8A)? Try the TPS62410-Q1
  • TPS62405-Q1  -  Looking for fixed output options? Try the TPS62405-Q1

Description

The TPS6240x-Q1 family of devices are synchronous dual step-down DC-DC converters optimized for battery-powered portable applications and automotive systems. They provide two independent output voltage rails powered by rechargeable batteries or standard 3.3-V or 5-V voltage rail.

The EasyScale™ serial interface allows output-voltages modification during operation. The fixed-output-voltage versions, TPS62402-Q1, TPS62404-Q1, and TPS62405-Q1 support one-pin-controlled simple dynamic voltage scaling for low-power processors.

The TPS6240x-Q1 operates at 2.25-MHz fixed switching frequency and enters the power-save mode operation at light load currents to maintain high efficiency over the entire load-current range. For low-noise applications, one can force the devices into fixed-frequency PWM mode by pulling the MODE/DATA pin high. The shutdown mode reduces the current consumption to 1.2-µA, typical. The devices allow the use of small inductors and capacitors to achieve a small solution size.

Features

  • Qualified for Automotive Applications
  • AEC-Q100 Qualified With the Following Results:
    • Device Temperature Grade 1: –40°C to 125°C
      Operating Junction Temperature Range
    • Device HBM ESD Classification Level H2
    • Device CDM ESD Classification Level C4B
  • High Efficiency—Up to 95%
  • VIN Range From 2.5 V to 6 V
  • 2.25-MHz Fixed-Frequency Operation
  • Output Current 400 mA and 600 mA
  • Adjustable Output Voltage From 0.6 V to VIN
  • Pin Selectable Output Voltage Supports Simple
    Dynamic Voltage Scaling
  • EasyScale™ Optional One-Pin Serial Interface
  • Power-Save Mode at Light Load Currents
  • 180° Out-of-Phase Operation
  • Output-Voltage Accuracy in PWM Mode ±1%
  • Typical 32-µA Quiescent Current for Both Converters
  • 100% Duty Cycle for Lowest Dropout

WEBENCH® Designer TPS62400-Q1

  Min   Max Range
Vin1  V 2.50 to 6.00V
Vout1  V 0.6 to 6V
Iout1  A ≤ 0.40A
 
Vin2  V 2.50 to 6.00V
Vout2  V 0.6 to 6V
Iout2  A ≤ 0.60A
 
Ambient Temp  °C -40.00 to 125.00°C

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)
TPS62400-Q1 Order now 2.5     6     0.6     6     0.4     2     2000     2500     0.032     Enable
Forced PWM
Light Load Efficiency
Synchronous Rectification
Adaptive/Dynamic Voltage Scaling    
Voltage Mode     100     -40 to 125     Automotive     VSON | 10     Converter     10VSON: 9 mm2: 3 x 3 (VSON | 10)    
TPS62402-Q1 Order now 2.5     6     1.2     1.8     0.4     2     2000     2500     0.032     Enable
Forced PWM
Light Load Efficiency
Synchronous Rectification
Adaptive/Dynamic Voltage Scaling    
Voltage Mode     100     -40 to 125     Automotive     VSON | 10     Converter     10VSON: 9 mm2: 3 x 3 (VSON | 10)    
TPS62404-Q1 Order now 2.5     6     1.575     1.9     0.4     2     2250     2250     0.032     Enable
Forced PWM
Light Load Efficiency
Synchronous Rectification
Adaptive/Dynamic Voltage Scaling    
Voltage Mode     100     -40 to 125     Automotive     VSON | 10     Converter     10VSON: 9 mm2: 3 x 3 (VSON | 10)    
TPS62405-Q1 Order now 2.5     6     1.575     1.925     0.4     2     2250     2250     0.032     Forced PWM
Synchronous Rectification
Adaptive/Dynamic Voltage Scaling    
Voltage Mode     100     -40 to 125     Automotive     VSON | 10     Converter     10VSON: 9 mm2: 3 x 3 (VSON | 10)    
TPS62406-Q1 Order now 2.5     6     1.125     1.125     1     2     2000     2500