TPS62400 Dual, Adjustable, 400mA and 600mA, 2.25MHz Step-Down Converter with 1-Wire Interface in QFN | TI.com

TPS62400 (ACTIVE) Dual, Adjustable, 400mA and 600mA, 2.25MHz Step-Down Converter with 1-Wire Interface in QFN

 

Recommended alternative parts

  • TPS62410  -  Looking for more output current? Try the TPS62410
  • TPS62260  -  Looking for a single output device? Try the TPS62260
  • TPS62400-Q1  -  Looking for a AEC Q100 qualified device? Try the TPS62400-Q1

Description

The TPS6240x family of devices are synchronous dual step-down DC-DC converters optimized for battery-powered portable applications. The devices provide two independent output voltage rails powered by 1-cell Li-Ion or 3-cell NiMH/NiCD batteries. The devices are also suitable to operate from a standard 3.3-V or 5-V voltage rail.

With an input voltage range from 2.5 V to 6 V, the TPS62400 is ideal to power portable applications like smart phones, PDAs, and other portable equipment.

With the EasyScale serial interface the output voltages can be modified during operation. The fixed output voltage versions TPS62401, TPS62402, TPS62403, and TPS62404 support one-pin controlled simple Dynamic Voltage Scaling for low-power processors.

The TPS6240x operates at a 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 the devices can be forced into fixed frequency PWM mode by pulling the MODE/DATA pin high. In the shutdown mode, the current consumption is reduced to 1.2 µA, typical. The devices allow the use of small inductors and capacitors to achieve a small solution size.

The TPS62400 is available in a 10-pin leadless package (3-mm × 3-mm VSON)

Features

  • High Efficiency—Up to 95%
  • VIN Range From 2.5 V to 6 V
  • 2.25-MHz Fixed Frequency Operation
  • Output Current of 400 mA and 600 mA
  • Adjustable Output Voltage From 0.6V 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
  • Available in a 10-Pin VSON (3 mm × 3 mm)
  • APPLICATIONS
    • Cell Phones, Smart Phones
    • PDAs, Pocket PCs
    • OMAP and Low-Power DSP Supply
    • Portable Media Players
    • Digital Radios
    • Digital Cameras

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WEBENCH® Designer TPS62400

  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

Compare all products in Buck converters (integrated switch) Email Download to Excel
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 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 85     Catalog     VSON | 10     Converter     10VSON: 9 mm2: 3 x 3 (VSON | 10)    
TPS62401 Order now 2.5     6     1.1     1.575     0.4     2     2000     2500     0.032     Enable
Forced PWM
Light Load Efficiency
Synchronous Rectification
Adaptive/Dynamic Voltage Scaling    
Voltage Mode     100     -40 to 85     Catalog     VSON | 10     Converter     10VSON: 9 mm2: 3 x 3 (VSON | 10)    
TPS62402 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 85     Catalog     VSON | 10     Converter     10VSON: 9 mm2: 3 x 3 (VSON | 10)    
TPS62403 Samples not available 2.5     6     1.1     1.575     0.4     2     2000     2500     0.032     Enable
Forced PWM
Light Load Efficiency
Synchronous Rectification
Adaptive/Dynamic Voltage Scaling    
Voltage Mode     100     -40 to 85     Catalog     VSON | 10     Converter     10VSON: 9 mm2: 3 x 3 (VSON | 10)    
TPS62404 Order now 2.5     6     1.2     1.9     0.4     2     2000     2500     0.032     Enable
Forced PWM
Light Load Efficiency
Synchronous Rectification
Adaptive/Dynamic Voltage Scaling