ADPL44002

推荐新设计使用

40V, 200mA, Low Noise, CMOS LDO Linear Regulator

产品模型
9
产品技术资料帮助

ADI公司所提供的资料均视为准确、可靠。但本公司不为用户在应用过程中侵犯任何专利权或第三方权利承担任何责任。技术指标的修改不再另行通知。本公司既没有含蓄的允许,也不允许借用ADI公司的专利或专利权的名义。本文出现的商标和注册商标所有权分别属于相应的公司。

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产品详情

  • Low Noise: 20μVRMS Independent of Fixed Output Voltage
  • PSRR of 78dB at 10 kHz, VOUT ≤ 5V, VIN = 7V
  • Input Voltage Range: 2.7V to 40V
  • Maximum Output Current: 200mA
  • Initial Accuracy: ±1%
  • Accuracy Over Line, Load, and Temperature
    • ±1.8%, TJ = −40°C to +125°C
  • Low Dropout Voltage: 220mV (typical) at a 200mA Load, VOUT = 5V
  • User Programmable Soft Start (LFCSP only)
  • Low Quiescent Current, IGND = 80μA (typical) with no Load
  • Low Shutdown Current: 1.8μA at VIN = 6V, 3.0μA at VIN = 40V
  • Stable with a Small 2.2 μF Ceramic Output Capacitor
  • Fixed Output Voltage Options: 1.8V, 2.5V, 3.3V, and 5.0V
  • Adjustable Output from 1.2V to VIN – VDO, Output can be Adjusted Above Initial Set Point
  • Precision Enable
  • 2mm × 2mm, 6-Lead LFCSP, 5-Lead TSOT
ADPL44002
40V, 200mA, Low Noise, CMOS LDO Linear Regulator
ADPL44002 Typical Application Circuit ADPL44002 Typical Application Circuit ADPL44002 Pin Configuration ADPL44002 Pin Configuration ADPL44002 Chip Illustration ADPL44002 Chip Illustration
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工具及仿真模型

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评估套件

eval board
EVAL-ADPL44002

Evaluates the ADPL44002

特性和优点

  • Input Voltage Range: 3.8V to 40V
  • Resistor Programmed 3.3V Output Voltage
  • Maximum Output Current: 200mA
  • Jumper Turns Regulator On or Connects the EN Pin to a Connector to Turn the Regulator On or Off Externally
  • Jumper Connects the SENSE/ADJ Pin to the Output Through a Resistor Divider or Directly
  • VIN, VOUT, and GND Test Points for Regulation and Dropout Voltage Monitoring
  • Component Placeholders for an RC Network that can Reduce Noise when the SENSE/ADJ Pin Connects to the Output Through a Resistor Divider
  • Component Placeholder for a Soft-Start Capacitor and SS Test Point for Soft-Start Voltage Monitoring - LFCSP Package Evaluation Board Only
  • 6-Lead 2mm x 2mm LFCSP Package or a 5-Lead TSOT Package

产品详情

The ADPL44002 evaluation boards evaluate the ADPL44002, a 40V, 200mA, low noise, CMOS, low dropout (LDO) linear regulator.

See the Ordering Information section for the two types of evaluation boards available to evaluate the ADPL44002. There is an evaluation board that features a 6-lead, 2mm x 2mm LFCSP package, and there is also an evaluation board that features a 5-lead TSOT package.

The evaluation boards provide a 3.3V output over an input range of 3.8V to 40V. The maximum output current is 200mA, but output current is also limited by the thermal dissipation of the ADPL44002. The evaluation boards use the adjustable version of ADPL44002. A resistor divider programs the output of the adjustable ADPL44002 to 3.3V. Noise performance for the adjustable ADPL44002 can be made comparable to a fixed output ADPL44002 by installing optional RC network components into placeholders that the evaluation board printed circuit board (PCB) designs provide. The evaluation boards can easily be configured with a jumper for fixed output versions of the ADPL44002 that normally have their SENSE/ADJ pin connected directly to the output.

In addition to connectors for the input voltage, output voltage, EN control signal and ground, the evaluation boards provide test points for the input, output, and SS pin voltages. A jumper normally connects the EN pin to the VIN input, but the jumper can be repositioned so EN can be driven externally at its connector instead.

For more details, refer to the ADPL44002 data sheet, which must be consulted in addition to this user guide when using the ADPL44002 evaluation boards.

EVAL-ADPL44002
Evaluates the ADPL44002
EVAL-ADPL44002 Board Photo Angle View EVAL-ADPL44002 Board Photo Top View EVAL-ADPL44002 Board Photo Bottom View

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