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MAX639CPA+

降压开关稳压器, 固定, 4V-11.5V输入, 5V/225mA输出, DIP-8

MAXIM INTEGRATED PRODUCTS MAX639CPA+
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制造商产品编号:
MAX639CPA+
库存编号
2514114
技术数据表:
MAX639CPA+   Datasheet
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产品概述

The MAX639CPA+ is a high efficiency, low IQ, step down DC to DC converter in 8 pin DIP package. This step down switching regulator provides high efficiency over a wide range of load currents and delivers up to 225mA output current. A current limiting pulse frequency modulated (PFM) control scheme gives the devices the benefits of pulse width modulated (PWM) converters (high efficiency at heavy loads) while using only 10µA of supply current (2mA to 10mA for PWM converters). This results in high efficiency over wide range of loads. The MAX639 provides lower preset output voltage of 5V and the output can be user adjusted to any voltage from 1.3V to input voltage. It has an internal 1A power MOSFET switch which makes the device ideal for minimum component, low and medium power applications. It is typical used for 9V battery to 5V, 3.3V or 3V conversion, high efficiency linear regulator replacement and 5V to 3.3V converters.
  • Supply voltage range from 4V to 11.5V
  • Operating temperature range from 0°C to 70°C
  • Low supply current, high efficiency over wide load range
  • Quiescent current of 10µA
  • Low battery detection comparator
  • Efficiency of 94% (IOUT = 25mA, L = 470µH) and 91% (IOUT = 100mA, L = 100µH)
  • Switch on-time of 16.7µs (V+ = 6V, VOUT = 3V) and 12.5µs (V+ = 9V, VOUT = 5V)
  • Switch off-time of 19.5µs (V+ = 6V, VOUT = 3V) and 11.7µs (V+ = 9V, VOUT = 5V)

应用

电源管理, 便携式器材

警告

Market demand for this product has caused an extension in leadtimes. Delivery dates may fluctuate. Product exempt from discounts.

产品信息

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降压

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4V

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11.5V

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DIP

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8引脚

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225mA

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5V

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-

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70°C

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-

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-

:
MSL 1 -无限制
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技术文档 (1)

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Use of these CAD models and other options provided are downloaded and used entirely at your own risk and by continuing you confirm acceptance of the above.

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