Products
TPS61252DSGR 3.5-MHz, 1.5-A
Features for the TPS61252
Resistor Programmable Input Current Limit
- ±20% Current Accuracy at 500 mA over
Full Temperature Range - Programmable from 100 mA up to 1500 mA
Up to 92% Efficiency
VIN Range from 2.3 V to 6.0 V
Power Good Indicates Appropriate Output Voltage Level
Adjustable Output Voltage up to 6.5 V
100% Duty-Cycle Mode When VIN > VOUT
Load Disconnect and Reverse Current Protection
Short Circuit Protection
Typical Operating Frequency 3.25 MHz
Available in a 2-mm × 2-mm WSON-8 Package
APPLICATIONS
- USB Host Supplies from a Single Li-Ion Battery
- Current Limited Applications
- Li-Ion Applications
- Audio Applications
- RF-PA Buffer
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Description for the TPS61252
The TPS61252 device provides a power supply solution for products powered by either a three-cell alkaline, NiCd or NiMH battery, or an one-cell Li-Ion or Li-polymer battery. The wide input voltage range is ideal to power portable applications like mobile phones or computer peripherals. The device has a resistor programmable (RILIM) input current limit and is suitable for a wide variety of applications.
During light loads, the device automatically enters skip mode (PFM), which allows the converter to maintain the required output voltage, while only drawing 30 µA quiescent current from the battery. This allows maximum efficiency at lowest quiescent currents.
TPS61252 allows the use of small inductors and capacitors to achieve a small solution size. The possibility to reduce the current limit by a external resistor offers the potential use of physically even smaller inductors with lower rated currents to further reduce total solution sizes of the power supply. During shutdown, the load is completely disconnected from the battery. The TPS61252 is available in a 8-pin WSON package measuring 2 mm × 2 mm (DSG).
1. Who are the staff in your R & D department? What are your qualifications?
-R & D Director: formulate the company’s long-term R & D plan and grasp the direction of research and development; Guide and supervise r&d department to implement company r&d strategy and annual R&D plan; Control the progress of product development and adjust the plan; Set up excellent product research and development team, audit and training related technical personnel.
R & D Manager: make new product R & D plan and demonstrate the feasibility of the plan; Supervise and manage the progress and quality of r&d work; Research new product development and propose effective solutions according to customer requirements in different fields
R&d staff: collect and sort out key data; Computer programming; Conducting experiments, tests and analyses; Prepare materials and equipment for experiments, tests and analyses; Record measurement data, make calculations and prepare charts; Conduct statistical surveys
2. What is your product research and development idea?
- Product conception and selection product concept and evaluation product definition and project plan design and development product testing and validation launch to market
