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PT12884A, PT12887A, PT1301

Table of contents:
Info of PT12884A
Info of PT12887A
Info of PT1301

PT12884A, PT12887A, PT1301 Selling Leads, Datasheet

MFG:PPT Package Cooled:CAP D/C:09+

PT12884A, PT12887A, PT1301 Datasheet download

Five Points

Part Number: PT12884A

MFG: PPT

Package Cooled: CAP

D/C: 09+

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PT1301 General Description

The PT1301 is a compact, high efficiency, and low voltage step-up DC/DC converter with an Adaptive Current Mode PWM control loop. It comprises of an error amplifier, a ramp generator, a PWM comparator, a switch pass element and the driver. It provides stable and high efficient operation over a wide range of load currents without external compensation. The below 1V start-up input voltage makes PT1301 suitable for single battery cell applications. The built-in power transistor is able to provide up to 300mA output current while working under Li-Battery Supply. Besides, it provides extra pin to drive external power devices (NMOS or NPN ) in case higher output current is needed. The output voltage is set with two external resistors. The 500KHz high switching rate reduces the size of external components. Besides, the 14A low quiescent current together with high efficiency maintains long battery lifetime.

PT1301 Features

` Low Profile SOT Package
` Low Quiescent (Switch-off) Supply Current: 14A
` Low Start-up Input Voltage: typical 0.8V
` High Supply Capability: Deliver 3.3V 100mA with 1Alkaline Cell; 5V 300mA with 1 Li-Cell
` Zero Shutdown Mode Supply Current
` High efficiency: 90%
` Fixed switching frequency: 500KHz
` Options for internal or external power switches
` Package type: SOT-26, SOT-89-5

PT1301 Typical Application

· MP3 Player
· PDA
· Electronic Dictionary
· DSC
· LCD
· RF-Tag
· Portable Devices
· Wireless Devices

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