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EnglishPT1307电池充电,DC-DC转换 锂电和USB供电,便携式设备 升降压DC-DC,LCD屏背光
GENERAL DESCRIPTION
The PT1307 is a current mode DC-DC converter with
accurate input current limit. It is suitable for use in
topologies requiring low side MOSFET, such as boost,
fly-back or SEPIC. The PT1307 has built in fault
condition protection features such as short-circuit
protection, and Thermal shut down protection.
The
PT1307 also has an OVLO function that locks out the
switch when the input voltage is higher than 6.5V,
although the, IN, and CS can stand up to 20V. The
PT1307 provides programm
able average current
limiting with ±2% accuracy
, which allows accurate
limiting of the average current in the inductors,
independent of peak current.
The PT1307 is available in
SOT23-6.
FEATURES
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±2% Programmable Average Current Limiting
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1MHz Switching Frequency
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Short-Circuit Protection
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OVLO with Hysteresis
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RoHS compliant
APPLICATIONS
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Battery Chargers
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Li-ion and USB Powered Systems
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Portable Instruments
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Step-up DC-DC Converters
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Step-up/step-down and Isolated dc/dc converters
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