MAX604

5V/3.3V或可调、低压差、低IQ、500mA线性稳压器

业内尺寸最小的500mA LDO,SO8封装可耗散1.8W的功率


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说明

The MAX603/MAX604 low-dropout, low quiescent current, linear regulators supply 5V, 3.3V, or an adjustable output for currents up to 500mA. They are available in a 1.8W SO package. Typical dropouts are 320mV at 5V and 500mA, or 240mV at 3.3V and 200mA. Quiescent currents are 15µA typ and 35µA max. Shutdown turns off all circuitry and puts the regulator in a 2µA off mode. A unique protection scheme limits reverse currents when the input voltage falls below the output. Other features include foldback current limiting and thermal overload protection.

The output is preset at 3.3V for the MAX604 and 5V for the MAX603. In addition, both devices employ Dual Mode™ operation, allowing user-adjustable outputs from 1.25V to 11V using external resistors. The input voltage supply range is 2.7V to 11.5V.

The MAX603/MAX604 feature a 500mA P-channel MOSFET pass transistor. This transistor allows the devices to draw less than 35µA over temperature, independent of the output current. The supply current remains low because the P-channel MOSFET pass transistor draws no base currents (unlike the PNP transistors of conventional bipolar linear regulators). Also, when the input-to-output voltage differential becomes small, the internal P-channel MOSFET does not suffer from excessive base current losses that occur with saturated PNP transistors.
MAX603、MAX604:典型工作电路 MAX603、MAX604:典型工作电路 放大+

关键特性

  • 500mA Output Current, with Foldback Current Limiting
  • High-Power (1.8W) 8-Pin SO Package
  • Dual Mode™ Operation: Fixed or Adjustable Output from 1.25V to 11V
  • Large Input Range (2.7V to 11.5V)
  • Internal 500mA P-Channel Pass Transistor
  • 15µA Typical Quiescent Current
  • 2µA (Max) Shutdown Mode
  • Thermal Overload Protection
  • Reverse-Current Protection

应用

  • 1.25V至11V可调节的稳压器
  • 5V和3.3V稳压器
  • 汽车电子
  • 寻呼机及蜂窝电话
  • 便携式仪表
  • 太阳能供电仪表
Part NumberRegulatorsVIN
(V)
VIN
(V)
Preset VOUT
(V)
Adj. VOUT
(V)
Adj. VOUT
(V)
VDROPOUT @Rated ILOAD
(V)
Rated ILOAD
(mA)
Rated ILOAD
(mA)
ICC
(µA)
Low Batt./ Pwr. Fail OutWatchdogReverse Batt. Protect.Oper. Temp.
(°C)
Package/PinsBudgetary
Price
minmaxminmaxtypmaxSee Notes
MAX603 12.711.551.311.50.3250050050NoNoNo0 to +70
PDIP/8
SOIC (N)/8
$1.96 @1k
MAX604 3.30.635
-40 to +85
0 to +70
PDIP/8
SOIC (N)/8
$1.86 @1k
查看所有Linear Regulators (145)
Pricing Notes:
价格仅供参考,用于同类产品的比较。所提供报价为美元,需要依汇率折合成人民币。该价格将因当地关税、税率和汇率而异。有关特定订购量和指定版本的报价和供货问题,请参考:价格与供货网站或与指定代理商联系。

CAD Symbols and Footprints

  • MAX604CPA+
  • MAX604CSA+
  • MAX604CSA+T
  • MAX604EPA+
  • MAX604ESA+
  • MAX604ESA+T
  • MAX604ESA/GG8
  • 型号   生产流程   工艺   样本量   不合格   FIT @ 25°C   FIT @ 55°C  

    备注: 通过技术手段对故障率进行汇总,并映射到相关的材料部件号。 故障率与被测件的数量密切相关。

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