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LP2953 - 可調節微功耗低壓降穩壓器

LP2953是TI公司(德州儀器)的一款單通道LDO產品,LP2953是可調節微功耗低壓降穩壓器,本站介紹了LP2953的產品說明、應用、特性等,并給出了與LP2953相關的TI元器件型號供參考.

LP2953 - LP295x Adjustable Micropower Low-Dropout Voltage Regulators - TI德州儀器(Texas Instruments)

產品特性
  • 2.3-V to 30-V Input Voltage Range
  • Output Voltage Adjusts from 1.23 V to 29 V
  • 250-mA Output Current
  • Extremely Low Quiescent Current
  • Low Dropout Voltage
  • Extremely Tight Line and Load Regulation
  • Very Low Temperature Coefficient
  • Current and Thermal Limiting
  • Reverse Battery-Input Protection
  • 50-mA (Typical) Automatic Output Discharge
  • LP2953 Versions Only
    • Auxiliary Comparator Included With CMOS- and TTL-Compatible Output Levels. Can Be Used for Fault Detection, Low-Input Line Detection, and so on.
產品應用
  • High-Efficiency Linear Regulator
  • Regulator With Undervoltage Shutdown
  • Low-Dropout Battery-Powered Regulator
  • Snap-ON/Snap-OFF Regulator
產品說明

The LP2952 and LP2953 are micropower voltage regulators with very low quiescent current (130 μA typical at 1-mA load) and very low dropout voltage (typically 60 mV at light load and 470 mV at 250-mA load current). They are ideally suited for battery-powered systems. Furthermore, the quiescent current increases only slightly at dropout, which prolongs battery life.

The LP2952 and LP2953 retain all the desirable characteristics of the LP2951, but offer increased output current, additional features, and an improved shutdown function.

The automatic output discharge pulls the output down quickly when the shutdown is activated.

The error flag goes low if the output voltage drops out of regulation.

Reverse battery-input protection is provided.

The internal voltage reference is made available for external use, providing a low temperature coefficient (20 ppm/°C) reference with very good line (0.03%) and load (0.04%) regulation.

產品器件信息
PART NUMBERPACKAGEBODY SIZE (NOM)
LP2952x SOIC (16)9.90 mm × 3.91 mm
LP2953x SOIC (16)9.90 mm × 3.91 mm
PDIP (16)21.755 mm × 6.35 mm
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