PAM2401数据手册集成电路（IC）的稳压器-DC-DC开关稳压器规格书PDF

描述 Description

The PAM2401 is a high efficiency, current mode, fixed frequency, step-up DC/DC converter with true output disconnect and inrush current limiting. The device includes one 0.10Ω N-channel MOSFET switch and one 0.15Ω P-channel synchronous rectifier. This product has the ability to simply program the output voltage from 2.5V to 5.0V.The switching frequency is 1.0MHz, programmable current limit set by an external resistor from 1.0A to 3.0A with internal soft-start. When loading became light, the converter will automatically enter into PSM to improve the efficiency.

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\tQuiescent current is only 150μA during Pulse Skip Mode operation, maximizing battery life in portable applications. Other features include: <1μA shutdown, anti-ringing control, Hiccup mode at short protection, over voltage protection and over temperature protection.

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\tThe PAM2401 is available in MSOP-8 and U-DFN3030-12 packages

特性 Features

Up to 95% Efficiency
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\t\tTrue Output Disconnect
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\t\tInrush Current Limiting When Power On
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\t\tOutput Current up to 1000mA at VIN = 3V and VOUT = 5.0V
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\t\tFixed Frequency Operation Up to 1MHz
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\t\t0.9V to 4.75V Input Range
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\t\t2.5V to 5.0V Adjustable Output Voltage
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\t\tGuaranteed 1.0V Start-Up
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\t\tProgrammable Current Limit
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\t\tInternal Soft-Start
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\t\tInternal Compensation
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\t\tPulse Sipping Mode at Light Load Operation
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\t\tHiccup Mode Short Protection
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\t\tOver Voltage Protection
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\t\tOver Temperature Protection
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\t\t<1μA Shutdown Current
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\t\tPower Good Indicator
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\t\tMSOP-8 and U-DFN3030-12 packages
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\t\tTotally Lead-Free & Fully RoHS Compliant 
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\t\tHalogen and Antimony Free. “Green” Device

应用 Application

Handheld Computers
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\t\tCordless Phones
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\t\tGPS Receivers
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\t\tBattery Backup Supplies