MIC2941ABU datasheet, PDF - EEWORLD Datasheet

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MIC2941ABU: DescriptionAdjustable Positive LDO Regulator, 1.24V Min, 26V Max, 0.6V Dropout, BIPolar, PSSO5, TO-263, 5 PIN; CategoryPower/power management The power supply circuit; File Size320KB，11 Pages; ManufacturerMicrel ( Microchip ); Websitehttps://www.microchip.com

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MIC2941ABU Overview

Adjustable Positive LDO Regulator, 1.24V Min, 26V Max, 0.6V Dropout, BIPolar, PSSO5, TO-263, 5 PIN

MIC2941ABU Parametric

Parameter Name	Attribute value
Is it Rohs certified?	incompatible
Maker	Micrel ( Microchip )
Parts packaging code	D2PAK
package instruction	TO-263, SMSIP5H,.6,67TB
Contacts	4
Reach Compliance Code	not_compliant
ECCN code	EAR99
Adjustability	ADJUSTABLE
Maximum drop-back voltage 1	0.6 V
Nominal dropback voltage 1	0.4 V
JESD-30 code	R-PSSO-G5
JESD-609 code	e0
length	10.363 mm
Maximum grid regulation rate (%/V)	0.02
Maximum load regulation (%)	0.2%
Humidity sensitivity level	3
Number of functions	1
Output times	1
Number of terminals	5
Working temperatureTJ-Max	125 °C
Working temperature TJ-Min	-40 °C
Maximum output current 1	1.25 A
Maximum output voltage 1	26 V
Minimum output voltage 1	1.24 V
Package body material	PLASTIC/EPOXY
encapsulated code	TO-263
Encapsulate equivalent code	SMSIP5H,.6,67TB
Package shape	RECTANGULAR
Package form	SMALL OUTLINE
Peak Reflow Temperature (Celsius)	240
Certification status	Not Qualified
Regulator type	ADJUSTABLE POSITIVE SINGLE OUTPUT LDO REGULATOR
Maximum seat height	4.902 mm
surface mount	YES
technology	BIPOLAR
Terminal surface	Tin/Lead (Sn85Pb15)
Terminal form	GULL WING
Terminal pitch	1.702 mm
Terminal location	SINGLE
Maximum time at peak reflow temperature	30
width	8.7755 mm

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MIC2940A/2941A

1.2A Low-Dropout Voltage Regulator

General Description

The MIC2940A and MIC2941A are “bulletproof” efficient

voltage regulators with very low dropout voltage (typically

40mV at light loads and 350mV at 1A), and low quiescent

current (240µA typical). The quiescent current of the

MIC2940A increases only slightly in dropout, thus

prolonging battery life. Key MIC2940A features include

protection against reversed battery, fold-back current

limiting, and automotive “load dump” protection (60V

positive transient).

The MIC2940 is available in both

ﬁxed

voltage (3.3V, 5V,

and 12V) and adjustable voltage conﬁgurations. The

MIC2940A-xx devices are three pin,

ﬁxed

voltage

regulators. A logic-compatible shutdown input is provided

on the adjustable MIC2941A, which enables the regulator

to be switched on and off.

Data sheets and support documentation can be found on

Micrel’s web site at: www.micrel.com.

Features

•

High output voltage accuracy

Guaranteed 1.25A output

Low quiescent current

Low dropout voltage

Extremely tight load and line regulation

Very low temperature coefﬁcient

Current and thermal limiting

Input can withstand –20V reverse battery and +60V

positive transients

•

Logic-controlled electronic shutdown

•

Output programmable from 1.24V to 26V(MIC2941A)

•

Available in TO-220, TO-263, TO-220-5, and TO-263-5

packages.

Applications

•

Battery powered equipment

•

Cellular telephones

•

Laptop, notebook, and palmtop computers

•

PCMCIA VCC and VPP regulation/switching

•

Bar code scanners

•

Automotive electronics

•

SMPS post-regulator/ DC-to-DC modules

•

Voltage reference

•

High efficiency linear power supplies

___________________________________________________________________________________________________________

Pin Configuration

2 3

TO-263-3

(MIC2940A-xxBU/WU)

TO-263-5

(MIC2941ABU/WU)

MIC2941A Pinout

1) Adjust

2) Shutdown

3) Ground

4) Input

5) Output

1 2 3 4

TO-220-3

(MIC2940A-xxBT/WT)

MIC2940A Pinout

1) Input

2) Ground

3) Output

TO-220-5

(MIC2941ABT/WT)

The TAB is Ground on TO-220 and TO-263 packages

Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 (

408

) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com

July 2007

M9999-071307

MIC2941ABU Related Products

	MIC2941ABU	MIC2941ABT
Description	Adjustable Positive LDO Regulator, 1.24V Min, 26V Max, 0.6V Dropout, BIPolar, PSSO5, TO-263, 5 PIN	Adjustable Positive LDO Regulator, 1.24V Min, 26V Max, 0.6V Dropout, BIPolar, TO-220, 5 PIN
Is it Rohs certified?	incompatible	incompatible
Maker	Micrel ( Microchip )	Micrel ( Microchip )
Parts packaging code	D2PAK	SFM
package instruction	TO-263, SMSIP5H,.6,67TB	TO-220, SIP5,.1,67TB
Contacts	4	3
Reach Compliance Code	not_compliant	_compli
ECCN code	EAR99	EAR99
Adjustability	ADJUSTABLE	ADJUSTABLE
Maximum drop-back voltage 1	0.6 V	0.6 V
Nominal dropback voltage 1	0.4 V	0.4 V
JESD-30 code	R-PSSO-G5	R-XSFM-T5
JESD-609 code	e0	e0
Maximum grid regulation rate (%/V)	0.02	0.02
Maximum load regulation (%)	0.2%	0.2%
Number of functions	1	1
Output times	1	1
Number of terminals	5	5
Working temperatureTJ-Max	125 °C	125 °C
Maximum output current 1	1.25 A	1.25 A
Maximum output voltage 1	26 V	26 V
Minimum output voltage 1	1.24 V	1.24 V
Package body material	PLASTIC/EPOXY	UNSPECIFIED
encapsulated code	TO-263	TO-220
Encapsulate equivalent code	SMSIP5H,.6,67TB	SIP5,.1,67TB
Package shape	RECTANGULAR	RECTANGULAR
Package form	SMALL OUTLINE	FLANGE MOUNT
Peak Reflow Temperature (Celsius)	240	240
Certification status	Not Qualified	Not Qualified
Regulator type	ADJUSTABLE POSITIVE SINGLE OUTPUT LDO REGULATOR	ADJUSTABLE POSITIVE SINGLE OUTPUT LDO REGULATOR
surface mount	YES	NO
technology	BIPOLAR	BIPOLAR
Terminal surface	Tin/Lead (Sn85Pb15)	Tin/Lead (Sn85Pb15)
Terminal form	GULL WING	THROUGH-HOLE
Terminal pitch	1.702 mm	1.7 mm
Terminal location	SINGLE	SINGLE
Maximum time at peak reflow temperature	30	30

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