Datasheet > LM2937-10.0(TO-220)

LM2937-10.0(TO-220)

更新时间： 2023-02-26 15:13:26

品牌	Logo	应用领域
友顺 - UTC		/
页数	文件大小	规格书
9页	221K
描述
Regulator, 1 Output, BIPolar

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UTC LM2937-XX LINEAR INTEGRATED CIRCUIT

500mA LOW DROPOUT VOLTAGE

REGULATOR

DESCRIPTION

The UTC LM2937-XX is a positive voltage regulator

T0-220

capable of supplying up to 500mA of load current. The use of

a PNP power transistor provides a low dropout voltage

characteristic. With a load current of 500mA the minimum

input to output voltage differential required for the output to

remain in regulation is typically 0.5V(1V guaranteed maximum

over the full operating temperature range). Special circuitry

has been incorporated to minimize the quiescent current to

typically only 10mA with a full 500mA load current when the

input to output voltage differential is greater than 3V.

The UTC LM2937-XX 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 UTC LM2937-XX is stable for

all ESR below 3Ω.This allows the use of low ESR chip

TO-263-5

T0-263

TO-220/TO263 : 1:Input 2:GND 3:Output

TO-263-5 : 1: N/C 2: ON/OFF 3: GND

4: Input 5: Output

capacitors.

Ideally suited for automotive applications, the UTC

LM2937-XX will protect itself and any load circuitry from

reverse battery connections, two-battery jumps and up to

+60V/-50V load dump transients. Familiar regulator features

such as short circuit and thermal shutdown protection are also

built in.

FEATURES

*Fully specified for operation over -40°C to +125°C

*Output current in excess of 500mA

*Output trimmed for 5% tolerance under all operating

conditions

*Typical dropout voltage of 0.5V at full rated load current

*Wide output capacitor ESR range, up to 3Ω

*Reverse battery protection

*Internal short circuit and thermal overload protection

*60V input transient protection

*Mirror image insertion protection

*Built-in ON/OFF control function

UTC UNISONIC TECHNOLOGIES CO., LTD.

QW-R102-012,C

12 3 4 5 6 7...9

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