Bezahlverfahren
LM2937IMP-12 +BOM
Linear Voltage Regulator IC Positive Fixed 1 Output 500mA SOT-223-4
SOT-223-
Hersteller:
-
Herstellerteil #:
LM2937IMP-12
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Datenblatt:
-
Output Configuration:
Positive
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Output Type:
Fixed
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Number Of Regulators:
1
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Voltage - Input (Max):
26V
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EDA/CAD Modelle:
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Verfügbarkeit: 6955 Stck
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LM2937IMP-12 Allgemeine Beschreibung
The LM2937 is a positive voltage regulator capable of supplying up to 500 mA of load current. The use of a PNP power transistor provides a low dropout voltage characteristic. With a load current of 500 mA the minimum input to output voltage differential required for the output to remain in regulation is typically 0.5 V (1-V ensured maximum over the full operating temperature range). Special circuitry has been incorporated to minimize the quiescent current to typically only 10 mA with a full 500-mA load current when the input to output voltage differential is greater than 3 V.
The LM2937 requires an output bypass capacitor for stability. As with most low dropout regulators, the ESR of this capacitor remains a critical design parameter, but the LM2937 includes special compensation circuitry that relaxes ESR requirements. The device is stable for all ESR below 3 Ω. This allows the use of low ESR chip capacitors.
Ideally suited for automotive applications, the LM2937 will protect itself and any load circuitry from reverse battery connections, two-battery jumps, and up to 60-V/−50-V load dump transients. Familiar regulator features such as short circuit and thermal shutdown protection are also built in.
Hauptmerkmale
- Fully Specified for Operation Over −40°C
to 125°C - Output Current in Excess of 500 mA
- Output Trimmed for 5% Tolerance Under all Operating
Conditions - Typical Dropout Voltage of 0.5 V at Full Rated Load
Current - Wide Output Capacitor ESR Range, up to 3 Ω
- Internal Short Circuit and Thermal Overload Protection
- Reverse Battery Protection
- 60-V Input Transient Protection
- Mirror Image Insertion Protection
Spezifikationen
Category | Integrated Circuits (ICs)Power Management (PMIC)Voltage Regulators - Linear | Series | - |
Output Configuration | Positive | Output Type | Fixed |
Number of Regulators | 1 | Voltage - Input (Max) | 26V |
Voltage - Output (Min/Fixed) | 12V | Voltage - Output (Max) | - |
Voltage Dropout (Max) | 1V @ 50mA | Current - Output | 400mA |
Current - Quiescent (Iq) | 2 mA | Current - Supply (Max) | 20 mA |
PSRR | - | Control Features | - |
Protection Features | Over Temperature, Reverse Polarity, Short Circuit | Operating Temperature | -40°C ~ 85°C |
Mounting Type | Surface Mount | Base Product Number | LM2937 |
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