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AME5138 - Micropower Step-Up DC/DC Converter

General Description

The AME5138 is a fixed off-time step-up DC/DC converter in a small 5-lead SOT-25 package.The AME5138 is ideal for LCD panels requiring low current and high efficiency as well as LED applications for cellular phone backlighting, PDAs,and other hand-held devices.

Key Features

  • l 0.7Ω internal switch l Uses small surface mount components l Adjustable output voltage up to 20V l 2V to 5.5V input range l Input undervoltage lockout l 0.01µA shutdown current l Small 5-Lead SOT-25 package l All AME's lead free Product Meet RoHS Standard Figure 1¡G Four White LEDs.

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Datasheet Details

Part number AME5138
Manufacturer Analog Microelectronics
File Size 558.77 KB
Description Micropower Step-Up DC/DC Converter
Datasheet download datasheet AME5138 Datasheet

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The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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www.DataSheet4U.com AME, Inc. AME5138 n General Description The AME5138 is a fixed off-time step-up DC/DC converter in a small 5-lead SOT-25 package.The AME5138 is ideal for LCD panels requiring low current and high efficiency as well as LED applications for cellular phone backlighting, PDAs,and other hand-held devices. The low 400ns off-time allows the use of tiny external components. AME5138 is designed to drive up to four white LEDs in series with a constant current from a single Li-lon battery. To control LED brightness, the LED current can be adjusted by applying a PWM (pulse width modulated) signal with a frequency range of 100Hz to 50KHz to the EN pin. Micropower Step-Up DC/DC Converter n Typical Application V IN 2.5V-4.