LM2937-8.0(TO-263) datasheet, PDF

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LM2937-8.0(TO-263): DescriptionRegulator, 1 Output, BIPolar; CategoryPower/power management The power supply circuit; File Size221KB，9 Pages; ManufacturerUNISONIC TECHNOLOGIES CO.,LTD; Websitehttp://www.unisonic.com.tw/

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LM2937-8.0(TO-263) Overview

Regulator, 1 Output, BIPolar

LM2937-8.0(TO-263) Parametric

Parameter Name	Attribute value
Objectid	104609921
package instruction	, SMSIP3H,.55TB
Reach Compliance Code	compliant
ECCN code	EAR99
Adjustability	FIXED
Nominal dropback voltage 1	0.5 V
Maximum absolute input voltage	26 V
Maximum grid adjustment rate	0.08%
Maximum load regulation	0.08%
Output times	1
Number of terminals	3
Maximum output current 1	0.5 A
Nominal output voltage 1	8 V
Package body material	PLASTIC/EPOXY
Encapsulate equivalent code	SMSIP3H,.55TB
Certification status	Not Qualified
surface mount	YES
technology	BIPOLAR
Terminal pitch	2.54 mm
Terminal location	SINGLE
Maximum voltage tolerance	3%

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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

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 3

.This allows the use of low ESR chip

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.

T0-220

TO-263-5

T0-263

TO-220/TO263 :

TO-263-5 : 1: N/C

1:Input

2:GND

3:Output

2: ON/OFF

5: Output

3: GND

4: Input

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

LM2937-8.0(TO-263) Related Products

	LM2937-8.0(TO-263)	LM2937-5.0(5TO-263)	LM2937-5.0(TO-220)	LM2937-5.0(TO-263)	LM2937-12.0(TO-220)	LM2937-12.0(TO-263)	LM2937-10.0(TO-220)
Description	Regulator, 1 Output, BIPolar	Regulator, 1 Output, BIPolar	Regulator, 1 Output, BIPolar	Regulator, 1 Output, BIPolar	Regulator, 1 Output, BIPolar	Regulator, 1 Output, BIPolar	Regulator, 1 Output, BIPolar
package instruction	, SMSIP3H,.55TB	, SMSIP5H,.6,67TB	, SIP3,.1TB	, SMSIP3H,.55TB	, SIP3,.1TB	, SMSIP3H,.55TB	, SIP3,.1TB
Reach Compliance Code	compliant	compli	compli	compli	compliant	compliant	compliant
Adjustability	FIXED	FIXED	FIXED	FIXED	FIXED	FIXED	FIXED
Nominal dropback voltage 1	0.5 V	0.5 V	0.5 V	0.5 V	0.5 V	0.5 V	0.5 V
Maximum absolute input voltage	26 V	26 V	26 V	26 V	26 V	26 V	26 V
Maximum grid adjustment rate	0.08%	0.05%	0.05%	0.05%	0.12%	0.12%	0.1%
Maximum load regulation	0.08%	0.05%	0.05%	0.05%	0.12%	0.12%	0.1%
Output times	1	1	1	1	1	1	1
Number of terminals	3	5	3	3	3	3	3
Maximum output current 1	0.5 A	0.5 A	0.5 A	0.5 A	0.5 A	0.5 A	0.5 A
Nominal output voltage 1	8 V	5 V	5 V	5 V	12 V	12 V	10 V
Package body material	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY
Encapsulate equivalent code	SMSIP3H,.55TB	SMSIP5H,.6,67TB	SIP3,.1TB	SMSIP3H,.55TB	SIP3,.1TB	SMSIP3H,.55TB	SIP3,.1TB
Certification status	Not Qualified	Not Qualified	Not Qualified	Not Qualified	Not Qualified	Not Qualified	Not Qualified
surface mount	YES	YES	NO	YES	NO	YES	NO
technology	BIPOLAR	BIPOLAR	BIPOLAR	BIPOLAR	BIPOLAR	BIPOLAR	BIPOLAR
Terminal pitch	2.54 mm	1.7 mm	2.54 mm	2.54 mm	2.54 mm	2.54 mm	2.54 mm
Terminal location	SINGLE	SINGLE	SINGLE	SINGLE	SINGLE	SINGLE	SINGLE
Maximum voltage tolerance	3%	3%	3%	3%	3%	3%	3%
Objectid	104609921	-	-	-	104609911	104609923	104609910
ECCN code	EAR99	-	-	-	EAR99	EAR99	EAR99

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