Dual, 400mA and 600mA, 2.25MHz Step-Down Converter with 1-Wire Interface in QFN
Product details
Parameters
Package | Pins | Size
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
All other trademarks are the property of their respective owners
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)
Technical documentation
Design & development
For additional terms or required resources, click any title below to view the detail page where available.Hardware development
Description
The TPS62401EVM-167 is an evaluation tool for the TPS62401 which is a 2.25 MHz dual, step down converter in a small 3x3 mm2 QFN package. The TPS62401 has a 2.5 V to 6 V input voltage supply and offers fixed output voltages of 1.1 V/1.575 V at 400 mA and 1.8 V at (...)
Features
- Efficiency: 95%
- Vin Range: 2.5 V to 6 V
- Output Current: 400 mA and 600 mA
- Fixed output voltage of 1.1 V/1.575 V at 400mA and 1.8V at 600 mA
- Available in 10-pin 3x3 QFN package
- Power Save Mode at Light Load Currents
- Typ. 32 uA Quiescent current for both converters
- EasyScale one pin serial interface for dynamic (...)
Description
The TPS62420EVM-167 is an evaluation tool for the TPS62420 which is a 2.25 MHz dual, step down converter in a small 3x3 mm2 QFN package. The TPS62420 can supply voltages from 0.6 V to 6 V from a 2.5 V to 6 V input, and provides two output rails of up to 600 mA/1000 mA (...)
Features
- Efficiency: 95%
- Vin Range: 2.5 V to 6 V
- Output Current: 600 mA and 1000 mA
- Adjustable output voltage from 0.6 V to Vin
- Available in 10-pin 3x3 QFN package
- Power Save Mode at Light Load Currents
- Typ. 32 uA Quiescent current for both converters
- EasyScale one pin serial interface for dynamic output voltage (...)
Software development
Design tools & simulation
Features
- Leverages Cadence PSpice Technology
- Preinstalled library with a suite of digital models to enable worst-case timing analysis
- Dynamic updates ensure you have access to most current device models
- Optimized for simulation speed without loss of accuracy
- Supports simultaneous analysis of multiple products
- (...)
CAD/CAE symbols
| Package | Pins | Download |
|---|---|---|
| VSON (DRC) | 10 | View options |
Ordering & quality
- RoHS
- REACH
- Device marking
- Lead finish/Ball material
- MSL rating/Peak reflow
- MTBF/FIT estimates
- Material content
- Qualification summary
- Ongoing reliability monitoring
Support & training
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