MAX8878

低噪声、低压差、150mA线性稳压器,引脚兼容于'2982

SOT23稳压器,节省空间


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说明

The MAX8877/MAX8878 low-noise, low-dropout linear regulators operate from a 2.5V to 6.5V input and deliver up to 150mA. These devices are pin-compatible with the industry-standard '2982 and offer an improved dropout voltage. Typical output noise is 30µVRMS, and typical dropout is only 165mV at 150mA. The output voltage is preset to voltages in the range of 1.5V to 5.0V, in 100mV increments.

Designed with an internal P-channel MOSFET pass transistor, the MAX8877/MAX8878 maintain a low 100µA supply current, independent of the load current and dropout voltage. Other features include a 10nA logic-controlled shutdown mode, short-circuit and thermal-shutdown protection, and reverse battery protection. The MAX8878 also includes an auto-discharge function, which actively discharges the output voltage to ground when the device is placed in shutdown. Both devices come in regular and thin 5-pin SOT23 package.
MAX8877、MAX8878:典型工作电路 MAX8877、MAX8878:典型工作电路 放大+

关键特性

  • Pin-Compatible with the Industry-Standard '2982
  • Low Output Noise: 30µVRMS
  • Low 55mV Dropout at 50mA Output (165mV at 150mA output)
  • Low 85µA No-Load Supply Current
  • Low 100µA Operating Supply Current (even in dropout)
  • Thermal-Overload and Short-Circuit Protection
  • Reverse Battery Protection
  • Output Current Limit
  • Preset Output Voltages (±1.4% Accuracy)
  • 10nA Logic-Controlled Shutdown

应用

  • 音频系统
  • 无绳电话
  • 电子规划器
  • 手持式仪表(PDA、掌上电脑)
  • 调制解调器
  • 掌上电脑
  • PCMCIA卡
  • PCS电话
Part NumberRegulatorsVIN
(V)
VIN
(V)
Preset VOUT
(V)
VDROPOUT @Rated ILOAD
(V)
Rated ILOAD
(mA)
Rated ILOAD
(mA)
ICC
(µA)
Output Voltage Noise
(µV RMS)
Ref. BypassLow Batt./ Pwr. Fail OutWatchdogReverse Batt. Protect.Oper. Temp.
(°C)
Package/PinsBudgetary
Price
minmaxtypmaxtypSee Notes
MAX8877 12.56.5
1.5
1.8
2.5
2.8
2.84
3
3.15
3.3
3.6
5
0.1615015018020YesNoNoYes-40 to +85
SOT23/5
TSOT/5
$0.77 @1k
MAX8878 
SOT23/5
TSOT/5
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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。

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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