MIC2920A-12WS Micrel Inc, MIC2920A-12WS Datasheet

IC REG LDO 400MA 12V SOT-223

MIC2920A-12WS

Manufacturer Part Number
MIC2920A-12WS
Description
IC REG LDO 400MA 12V SOT-223
Manufacturer
Micrel Inc
Datasheet

Specifications of MIC2920A-12WS

Regulator Topology
Positive Fixed
Voltage - Output
12V
Voltage - Input
Up to 26V
Voltage - Dropout (typical)
0.4V @ 400mA
Number Of Regulators
1
Current - Output
400mA
Operating Temperature
-40°C ~ 125°C
Mounting Type
Surface Mount
Package / Case
SOT-223 (3 leads + Tab), SC-73, TO-261
Primary Input Voltage
26V
Output Voltage Fixed
12V
Dropout Voltage Vdo
370mV
No. Of Pins
3
Output Current
400mA
Operating Temperature Range
-40°C To +125°C
Termination Type
SMD
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Current - Limit (min)
-
Lead Free Status / RoHS Status
Lead free / RoHS Compliant, Lead free / RoHS Compliant
Other names
576-1750-5
MIC2920A-12WS

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
MIC2920A-12WS
Manufacturer:
MICREL
Quantity:
36 000
MIC2920A/29201/29202/29204
General Description
The MIC2920A family are “bulletproof,” efficient voltage regu-
lators with very low dropout voltage (typically 40mV at light
loads and 370mV at 250mA), and very low quiescent current
(140µA typical). The quiescent current of the MIC2920A in-
creases only slightly in dropout, prolonging battery life. Key
MIC2920A features include protection against reversed bat-
tery, fold-back current limiting, and automotive “load dump”
protection (60V positive transient).
The MIC2920 is available in several configurations. The
MIC2920A-x.x devices are three pin fixed voltage regulators
available in 3.3V, 4.85V, 5V, and 12V outputs. The MIC29201
is a fixed regulator offering a logic compatible ON/OFF (shut-
down) input and an error flag output. This flag may also be
used as a power-on reset signal. A logic-compatible shutdown
input is provided on the adjustable MIC29202 which allows
the regulator to be switched on and off. The MIC29204 8-pin
SOIC adjustable regulator includes both shutdown and error
flag pins and may be pin-strapped for 5V output or programmed
from 1.24V to 26V using two external resistors.
Pin Configuration
February 2005
5-Lead Package Pinouts
1)
2)
3)
4)
5)
Micrel, Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel + 1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com
SHUTDOWN
SHUTDOWN
MIC29201
Error
Input
Ground
Output
Shutdown
GROUND
GROUND
MIC29201-3.3BM (SOIC-8)
OUTPUT
OUTPUT
S E N S E
S E N S E
MIC29204BM (SOIC-8)
1
2
3
4
1
2
3
4
MIC29202
Adjust
Shutdown
Ground
Input
Output
8
7
6
5
8
7
6
5
INPUT
A D JUST
5V TAP
E R R O R
INPUT
NC
NC
E R R O R
MIC29201/29202BU
MIC2920A-x.xBS
INPUT
1
(TO-263-5)
1
(SOT-223)
GROUND
2
TAB
2
TAB
3
OUTPUT
Tab is Ground on SOT-223, TO-220, and TO-263 packages.
1
4
3
Features
Applications
5
MIC2920A/29201/29202/29204
High output voltage accuracy
Guaranteed 400mA output
Low quiescent current
Low dropout voltage
Extremely tight load and line regulation
Very low temperature coefficient
Current and thermal limiting
Input withstands –20V reverse battery and
Error flag warns of output dropout
Logic-controlled electronic shutdown
Output programmable from 1.24V to 26V
(MIC29202/MIC29204)
Available in TO-220-3, TO-220-5, and surface-mount
TO-263-5, SOT-223, and SO-8 packages.
Battery-powered equipment
Cellular telephones
Laptop, notebook, and palmtop computers
PCMCIA V
Bar code scanners
Automotive electronics
SMPS post-regulators
Voltage reference
High-efficiency linear power supplies
400mA Low-Dropout Voltage Regulator
CC
MIC2920A-xxBT
60V positive transients
and V
(TO-220)
IN
1
GND
TAB
PP
2
regulation/switching
OU T
3
MIC29201/29202BT
1
(TO-220-5)
2
TAB
M9999-021505
3
Micrel, Inc.
4
5

Related parts for MIC2920A-12WS

MIC2920A-12WS Summary of contents

Page 1

... The quiescent current of the MIC2920A in- creases only slightly in dropout, prolonging battery life. Key MIC2920A features include protection against reversed bat- tery, fold-back current limiting, and automotive “ ...

Page 2

... MIC2920A/29201/29202/29204 Ordering Information Part Number Standard Pb-Free MIC2920A-3.3BS MIC2920A-3.3WS* MIC2920A-3.3BT MIC2920A-3.3WT* MIC2920A-4.8BS MIC2920A-4.8WS* MIC2920A-4.8BT MIC2920A-4.8WT* MIC2920A-5.0BS MIC2920A-5.0WS* MIC2920A-5.0BT MIC2920A-5.0WT* MIC2920A-12BS MIC2920A-12WS* MIC2920A-12BT MIC2920A-12WT* MIC29201-3.3BM MIC29201-3.3YM MIC29201-3.3BT MIC29201-3.3WT* MIC29201-3.3BU MIC29201-3.3WU* MIC29201-4.8BT MIC29201-4.8WT* MIC29201-4.8BU MIC29201-4.8WU* MIC29201-5.0BT MIC29201-5.0WT* MIC29201-5.0BU MIC29201-5.0WU* MIC29201-12BT MIC29201-12WT* MIC29201-12BU MIC29201-12WU* ...

Page 3

... MIC29204 is configured with the Adjust pin tied to the 5V Tap, the Output is tied to Output Sense (V 0.7V. Symbol Parameter Conditions V Output Voltage Variation from factory trimmed V O Accuracy 1mA ≤ I MIC2920A-12 and 29201-12 only 1mA ≤ I ∆V Output Voltage (Note 2) O ∆T Temperature Coef. V ∆V Line Regulation ...

Page 4

... MIC2920A/29201/29202/29204 Parameter Conditions MIC29202, MIC29204 Reference Voltage MIC29202 Reference Voltage MIC29202 (Note 8) Reference Voltage MIC29204 Reference Voltage MIC29204 (Note 8) Adjust Pin Bia Current Reference Voltage (Note 7) Temperature Coefficient Adjust Pin Bias Current Temperature Coefficient Error Comparator MIC29201, MIC29204 Output Leakage ...

Page 5

... Dropout Voltage is defined as the input to output differential at which the output voltage drops 100mV below its nominal value measured at 1V differential. At low values of programmed output voltage, the minimum input supply voltage of 4.3V over temperature must be taken into account. The MIC2920A operates down input at reduced output current at 25°C. Note 5: Ground pin current is the regulator quiescent current ...

Page 6

... MIC2920A/29201/29202/29204 Typical Characteristics Dropout V oltage vs . Output C urrent 500 400 300 200 100 0 0 100 200 300 400 OUTPUT CURRENT (mA) G round C urrent vs . Output C urrent 0 100 400 OUTPUT CURRENT (mA) G round C urrent emperature 0.20 0.15 0. 1mA OUT 0.05 0.00 -60 - 120 150 TEMPERATURE (°C) F ixed 3 ...

Page 7

... MIC2920A/29201/29202/29204 MIC 29201/2 S hutdown C urrent emperaure 125 100 -60 - 120 150 TEMPERATURE (°C) MIC 29202 A djus urrent emperature 1mA 10 LOAD 0 -60 - 120 150 TEMPERATURE (°C) February 2005 L oad T rans ient 200 C = 10µF OUT 100 0 -100 600 -200 400 1mA 200 0 -200 ...

Page 8

... MIC29202/29204 versions with external resistors, the current through these resistors may be included as a portion of the minimum load. A 0.1µF capacitor should be placed from the MIC2920A input to ground if there is more than 10 inches of wire between the input and the AC filter capacitor battery is used as the input ...

Page 9

... Minimum Input-Output Voltage ranges from 40mV to 400mV, depending on load current Figure 4. MIC29204 Wide Input Voltage Range Current Limiter February 2005 Automotive Applications The MIC2920A is ideally suited for automotive applications , since it 1 for a variety of reasons. It will operate over a wide range of input voltages with very low dropout voltages (40mV at light loads), and very low quiescent currents (100µ ...

Page 10

... MIC2920A/29201/29202/29204 Package Information 3.15 (0.124) 2.90 (0.114 2.41 (0.095) 2.21 (0.087) 4.7 (0.185) 4.5 (0.177) 0.10 (0.004) 0.02 (0.0008) M9999-021505 8-Pin SOIC ( 3.71 (0.146) 7.49 (0.295) 6.71 (0.264) 3.30 (0.130) 1.04 (0.041) 0.85 (0.033) DIMENSIONS: MM (INCH) 1.70 (0.067) 16° 6.70 (0.264) 1.52 (0.060) 10° ...

Page 11

... MIC2920A/29201/29202/29204 February 2005 3-Lead TO-220 (T) 5-Lead TO-220 (T) 11 Micrel, Inc. M9999-021505 ...

Page 12

... MIC2920A/29201/29202/29204 4 θ MICREL INC. 2180 FORTUNE DRIVE SAN JOSE, CA 95131 USA + 1 (408) 944-0800 TEL This information furnished by Micrel in this data sheet is believed to be accurate and reliable. However no responsibility is assumed by Micrel for its use. Micrel reserves the right to change circuitry and specifications at any time without notification to the customer. ...

Related keywords