MAX6349

150mA、SOT23封装、低压差线性稳压器,内置微处理器复位电路

完备的LDO和µP监控复位电路,采用SOT23封装


点击查看特定型号的库存状况。

说明

The MAX6329/MAX6349 are low-dropout, micropower linear voltage regulators with integrated microprocessor reset circuits. Each is available with preset +3.3V, +2.5V, +1.8V, or adjustable output voltages and can deliver up to 150mA load current. Employing internal P-channel MOSFET pass transistors, the devices consume only 25µA supply current, independent of the device load. The low supply current, low dropout voltage, and integrated reset functionality make these devices ideal for battery powered portable equipment.

The MAX6329/MAX6349 include an internal reset circuit that indicates when the regulator output drops below standard microprocessor supply tolerances (-5% or -10%). The reset output remains asserted for 100ms (min) after the regulator output exceeds the selected reset threshold, ensuring that supply voltages and clock oscillators have stabilized before processor activity is enabled. Reset outputs are available in push-pull (active-low or -high) and open-drain (active-low) options. The internal reset circuit replaces external microprocessor supervisors or RC-based reset time delays.

The MAX6329/MAX6349 are optimized for use with a 1µF (min) output capacitor. The regulator output voltage is adjustable with an external resistor-divider network at SET (reset threshold voltages track the desired output voltage). Each device includes thermal shutdown protection, output short-circuit protection, and reverse leakage protection. The MAX6329 includes a shutdown feature to reduce regulator current below 1µA (max) and the MAX6349 offers a manual reset input to assert a microprocessor reset while the regulator output is within specification.
MAX6329、MAX6349:典型工作电路 MAX6329、MAX6349:典型工作电路 放大+

关键特性

  • Preset +3.3V/+2.5V/+1.8V or Adjustable Regulator Output
  • ±3.0% Regulator Accuracy Over the Specifed Operating Range
  • 25µA Supply Current
  • Low 180mV Dropout at 100mA Load
  • Small Output Capacitor (1µF min ceramic or tantalum)
  • Zero Reverse Leakage Current
  • Thermal and Short-Circuit Protection
  • Integrated Microprocessor Reset Circuit with 100ms (min) Timeout
  • Open-Drain and Push-Pull Reset Outputs
  • Regulator Shutdown Input (MAX6329) or Manual Reset Input (MAX6349)
  • 6-Pin SOT23 Package

应用

  • 音频系统
  • 无绳电话
  • 电子规划器
  • 全球定位系统(GPS)
  • 手持式仪表(PDA、掌上电脑)
  • 调制解调器
  • 掌上电脑
  • PCMCIA卡
  • USB设备
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 OutPOK/Reset Thresh.
(V)
WatchdogReverse Batt. Protect.Oper. Temp.
(°C)
Package/PinsBudgetary
Price
minmaxminmaxtypmaxnomSee Notes
MAX6329 12.55.5
1.8
2.5
3.3
1.2350.315015050No
Vout-10%
Vout-5%
NoNo0 to +85
SOT23/6
$1.77 @1k
MAX6349 -40 to +85
SOT23/6
$1.99 @1k
查看所有Linear Regulators (144)
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。

质量和环境数据

申请可靠性报告: MAX6349 
无铅封装的锡(Sn)晶须报告

CAD Symbols and Footprints

  • MAX6349SPUT+
  • MAX6349THUT+T
  • MAX6349TLUT+
  • MAX6349TLUT+T
  • MAX6349VPUT+
  • MAX6349VPUT+T
  • MAX6349WHUT+
  • MAX6349WHUT+T
  • MAX6349WLUT+
  • MAX6349WLUT+T
  • MAX6349YHUT+
  • MAX6349YLUT+
  • MAX6349YLUT+T
  • 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。

    质量管理体系 >
    环境管理体系 >

     
    Status:
    Package:
    Temperature:

    相关资料


    MAX16136
    High-Precision Supervisory with Window Watchdog and Overvoltage Indicator

    • ±1% Accuracy
    • Enables ASIL Compliance at System Level
    • 0.5V to 5V Threshold Range with 20mV Increments

    MAX16160
    High-Accuracy 4-Channel, Any-Input Supervisory Circuits

    • Valid Active-Low RESET Logic State for Any Input Above 1V
    • ±1% Accuracy for All Inputs
    • Low 17μA Supply Current

    MAX16152
    nanoPower Supervisor and Watchdog Timer

    • 400nA (typ) Supply Current
    • 1.2V to 5.5V Operating Supply Range
    • Monitors Supply Voltage and Provides System Reset Signal

    MAX16153
    nanoPower Supervisor and Watchdog Timer

    • 400nA (typ) Supply Current
    • 1.2V to 5.5V Operating Supply Range
    • Monitors Supply Voltage and Provides System Reset Signal

    MAX16154
    nanoPower Supervisor and Watchdog Timer

    • 400nA (typ) Supply Current
    • 1.2V to 5.5V Operating Supply Range
    • Monitors Supply Voltage and Provides System Reset Signal

    MAX16155
    nanoPower Supervisor and Watchdog Timer

    • 400nA (typ) Supply Current
    • 1.2V to 5.5V Operating Supply Range
    • Monitors Supply Voltage and Provides System Reset Signal

    MAX20480
    汽车应用ASIL-D 7通道电源系统检测器

    • 小方案尺寸
    • 高精度
    • 高度集成