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PDF MIC29303 Data sheet ( Hoja de datos )
| Número de pieza | MIC29303 | |
| Descripción | (MIC29xxx) High-Current Low-Dropout Regulators | |
| Fabricantes | Micrel | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de MIC29303 (archivo pdf) en la parte inferior de esta página. Total 23 Páginas | ||
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MIC29150/29300/29500/29750
High-Current Low-Dropout Regulators
General Description
The MIC29150/29300/29500/29750 are high current, high
accuracy, low-dropout voltage regulators. Using Micrel's
proprietary Super βeta PNP® process with a PNP pass
element, these regulators feature 350mV to 425mV (full
load) typical dropout voltages and very low ground current.
Designed for high current loads, these devices also find
applications in lower current, extremely low dropout-critical
systems, where their tiny dropout voltage and ground
current values are important attributes.
The MIC29150/29300/29500/29750 are fully protected
against overcurrent faults, reversed input polarity, reversed
lead insertion, overtemperature operation, and positive
and negative transient voltage spikes. Five pin fixed
voltage versions feature logic level ON/OFF control and an
error flag which signals whenever the output falls out of
regulation. Flagged states include low input voltage
(dropout), output current limit, overtemperature shutdown,
and extremely high voltage spikes on the input.
On the MIC29xx1 and MIC29xx2, the ENABLE pin may be
tied to VIN if it is not required for ON/OFF control. The
MIC29150/29300/29500 are available in 3-pin and 5-pin
TO-220 and surface mount TO-263 (D2Pak) packages.
The MIC29750 7.5A regulators are available in 3-pin and
5-pin TO-247 packages. The 1.5A, adjustable output
MIC29152 is available in a 5-pin power D-Pak (TO-252)
package.
For applications with input voltage 6V or below, see
MIC37xxx LDOs.
Data sheets and support documentation can be found on
Micrel’s web site at www.micrel.com.
Features
• High current capability
MIC29150/29151/29152/29153................................. 1.5A
MIC29300/29301/29302/29303.................................... 3A
MIC29500/29501/29502/29503.................................... 5A
MIC29750/29751/29752............................................ 7.5A
• Low-dropout voltage
• Low ground current
• Accurate 1% guaranteed tolerance
• Extremely fast transient response
• Reverse-battery and “Load Dump” protection
• Zero-current shutdown mode (5-pin versions)
• Error flag signals output out-of-regulation (5-pin
versions)
• Also characterized for smaller loads with industry-
leading performance specifications
• Fixed voltage and adjustable versions
Applications
• Battery powered equipment
• High-efficiency “Green” computer systems
• Automotive electronics
• High-efficiency linear lower supplies
• High-efficiency lost-regulator for switching supply
_________________________________________________________________________________________________________________________
Typical Application**
Fixed Output Voltage
Adjustable Output Voltage
(*See Minimum Load Current Section)
Super βeta PNP is a registered trademark of Micrel, Inc.
**See Thermal Design Section
Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com
October 2009
M9999-102309-A
Free Datasheet http://www.datasheet4u.com/
1 page  
Micrel, Inc.
MIC29150/29300/29500/29750
Absolute Maximum Ratings(1)
Input Supply Voltage (VIN)(1) ........................... –20V to +60V
Enable Input Voltage (VEN)................................ –0.3V to VIN
Lead Temperature (soldering, 5sec.)......................... 260°C
Power Dissipation .....................................Internally Limited
Storage Temperature Range ....................–65°C to +150°C
ESD Rating................................................................ Note 3
Operating Ratings(2)
Operating Junction Temperature .............. –40°C to +125°C
Maximum Operating Input Voltage ................................26V
Package Thermal Resistance
TO-220 (θJC).........................................................2°C/W
TO-263 (θJC).........................................................2°C/W
TO-247 (θJC) .....................................................1.5°C/W
TO-252 (θJC).........................................................3°C/W
TO-252 (θJA) ......................................................56°C/W
Electrical Characteristics(4,13)
VIN = VOUT + 1V; IOUT = 10mA; TJ = 25°C, bold values indicate –40°C≤ TJ ≤ +125°C, unless noted.
Parameter
Condition
Min Typ
Output Voltage
IOUT = 10mA
10mA ≤ IOUT ≤ IFL, (VOUT + 1V) ≤ VIN ≤26V (5)
–1
–2
Line Regulation
Load Regulation
∆VO
∆T
IOUT = 10mA, (VOUT + 1V) ≤ VIN ≤26V
VIN = VOUT + 5V, 10mA ≤ IOUT ≤ 1.5A (5,9)
Output Voltage (9)
Temperature Coefficient.
0.06
0.2
20
Dropout Voltage
∆VOUT = -1% (6)
MIC29150
MIC29300
MIC29500
MIC29750
IOUT = 100mA
IOUT = 750mA
IOUT = 1.5A
IOUT = 100mA
IOUT = 1.5A
IOUT = 3A
IOUT = 250mA
IOUT = 2.5A
IOUT = 5A
IOUT = 250mA
IOUT = 4A
IOUT = 7.5A
80
220
350
80
250
370
125
250
370
80
270
425
Ground Current
MIC29150
MIC29300
MIC29500
MIC29750
Note 8
IOUT = 750mA, VIN = VOUT + 1V
IOUT = 1.5A
IOUT = 1.5A, VIN = VOUT + 1V
IOUT = 3A
IOUT = 2.5A, VIN = VOUT + 1V
IOUT = 5A
IOUT = 4A, VIN = VOUT + 1V
IOUT = 7.5A
8
22
10
37
15
70
35
120
IGRNDDOGround Pin
Current at Droupout
VIN = 0.5V less than specified VOUT × IOUT = 10mA
MIC29150
MIC29300
MIC29500
MIC29750
0.9
1.7
2.1
3.1
Current Limit
MIC29150
MIC29300
MIC29500
MIC29750
VOUT
VOUT
VOUT
VOUT
=
=
=
=
0V
0V
0V
0V
(7)
(7)
(7)
(7)
2.1
4.5
7.5
9.5
Max Units
1%
2%
0.5 %
1%
100 ppm/°C
200 mV
600
175
600
250
600
200
750
20 mA
35 mA
50 mA
75 mA
mA
mA
mA
mA
3.5 A
5.0 A
10.0 A
15 A
October 2009
5 M9999-102309-A
Free Datasheet http://www.datasheet4u.com/
5 Page 
Micrel, Inc.
MIC29150/29300/29500/29750
October 2009
11 M9999-102309-A
Free Datasheet http://www.datasheet4u.com/
11 Page | ||
| Páginas | Total 23 Páginas | |
| PDF Descargar | [ Datasheet MIC29303.PDF ] | |
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