LM2937IMP-3.3 Power Management ICs - PMIC by Texas Instruments

IC V REG LDO 0.4A +3.3V SMD 2937

Semiconductors - ICs>Power Management ICs - PMIC>Voltage Regulators
Status: Unknown
Series: 3.3V 500mA LDO Voltage Regulators
RoHS: Unknown
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The LM2937-2.5 and LM2937-3.3 are positive voltage regulators capable of supplying up to 500 mA of load current. Both regulators are ideal for converting a common 5-V logic supply, or higher input supply voltage, to the lower 2.5-V and 3.3-V supplies to power very-large-scale integrations (VLSI) ASICs and microcontrollers. 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 5 V. The LM2937 requires an output bypass capacitor for stability. As with most regulators utilizing a PNP pass transistor, the ESR of this capacitor remains a critical design parameter, but the LM2937-2.5 and LM29373.3 include special compensation circuitry that relaxes ESR requirements. The LM2937 is stable for all ESR ratings less than 5 Ω. This allows the use of low ESR chip capacitors. The regulators are also suited for automotive applications, with built in protection 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.

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Specifications

Output Type Fixed
Input Voltage Min 0V
Input Voltage Max 26V
Fixed Output Voltage Nom. 3.3V
Adjustable Output Voltage Min -
Adjustable Output Voltage Max -
Output Current 500mA
Dropout Voltage Vdo 500mV
LDO Regulator Case Style SOT-223
No. of Pins 3Pins
Operating Temperature Min -40°C
Operating Temperature Max 85°C
Product Range 3.3V 500mA LDO Voltage Regulators
Automotive Qualification Standard -
MSL MSL 1 - Unlimited
SVHC No SVHC (27-Jun-2018)
Accuracy % 5%
Base Number 2937
Device Marking LS69B
IC Generic Number 2937
IC Package (Case style) SOT-223
Input Voltage 26V
No. of Outputs 1Outputs
Operating Temperature Range -40°C to +85°C
Operating Voltage Tolerance + 5%
Output Current Max 0.4A
Output Voltage Nom. 3.3V
Primary Input Voltage 8.3V
Supply Voltage Max 26V
Supply Voltage Min 4.75V
Voltage Regulator Type Positive Fixed LDO

Frequently Asked Questions

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