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PDF MIC29510-5.0BT Data sheet ( Hoja de datos )
| Número de pieza | MIC29510-5.0BT | |
| Descripción | 5A Fast-Response LDO Regulator Preliminary Information | |
| Fabricantes | Micrel Semiconductor | |
| Logotipo |  |
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MIC29510/29512
Micrel
MIC29510/29512
5A Fast-Response LDO Regulator
Preliminary Information
General Description
The MIC29510 and MIC29512 are high-current, high-accu-
racy, low-dropout voltage regulators featuring fast transient
recovery from input voltage surges and output load current
changes. These regulators use a PNP pass element that
features Micrel’s proprietary Super ßeta PNP™ process.
The MIC29510/2 is available in two versions: the three pin
fixed output MIC29510 and the five pin adjustable output
voltage MIC29512. All versions are fully protected against
overcurrent faults, reversed input polarity, reversed lead
insertion, overtemperature operation, and positive and nega-
tive transient voltage spikes.
A TTL compatible enable (EN) control pin supports external
on/off control. If on/off control is not required, the device may
be continuously enabled by connecting EN to IN.
The MIC29510/2 is available in the standard three and five
pin TO-220 package with an operating junction temperature
range of 0°C to +125°C.
Features
• Fast transient response
• 5A current capability
• 700mV dropout voltage at full load
• Low ground current
• Accurate 1% guaranteed tolerance
• “Zero” current shutdown mode (MIC29512)
• Fixed voltage and adjustable versions
Applications
• Pentium™ and Power PC™ processor supplies
• High-efficiency “green” computer systems
• High-efficiency linear power supplies
• High-efficiency switching supply post regulator
• Battery-powered equipment
For applications requiring even lower dropout voltage, input
voltage greater than 16V, or an error flag, see the MIC29500/
29501/29502/29503.
Ordering Information
Part Number
MIC29510-3.3BT
MIC29510-5.0BT
MIC29512BT
* Junction Temperature
Temp. Range*
0°C to +125°C
0°C to +125°C
0°C to +125°C
Voltage
3.3V
5.0V
Adj.
Current
5.0A
5.0A
5.0A
Package
TO-220-3
TO-220-3
TO-220-5
Typical Application
MIC29510
VIN IN OUT
GND
VOUT
MIC29512
On
Off
EN OUT
VOUT
R1
VIN IN ADJ
GND
R2
Fixed Regulator Configuration
VOUT
=
1. 240
R1
R2
+
1
Adjustable Regulator Configuration
3-96
1997
1 page  
MIC29510/29512
Typical Characteristics
VIN = VOUT + 1V
MIC29512
EN OUT
IN ADJ
GND
VOUT
3.525V nominal
0.1µF
49.9k
1%
93.1k
1% 4 × 330µF
AVX
TPSE337M006R0100
tantalum
VOUT load (not shown):
Intel® Power Validator
MIC29512 Load Transient Response Test Circuit
Micrel
MIC29512 Load Transient Response
(See Test Circuit Schematic)
+20mV
3.525V
–20mV
5A
1ms/division
200mA
0mA
MIC29512 Line Transient Response
with 5A Load, 10µF Output Capacitance
6.525V
4.525V
+20mV
3.525V
–20mV
200µs/division
IOUT = 5A
COUT = 10µF
MIC29512 Line Transient Response
with 5A Load, 100µF Output Capacitance
6.525V
4.525V
+20mV
3.525V
–20mV
200µs/division
IOUT = 5A
COUT = 100µF
MIC2951x Dropout Voltage
vs. Output Current
1.0
0.8
0.6
0.4
0.2
0
012345
OUTPUT CURRENT (A)
MIC2951x Dropout Voltage
vs. Temperature
1.0
0.8
0.6 ILOAD = 5A
0.4
0.2
0
-60 -30 0 30 60 90 120 150
TEMPERATURE (°C)
3-100
MIC29510-3.3
Dropout Characteristics
5.0
VIN = 4.3V
4.0
ILOAD = 10mA
3.0
2.0 ILOAD = 5A
1.0
0.0
0
24
INPUT VOLTAGE (V)
6
1997
5 Page | ||
| Páginas | Total 8 Páginas | |
| PDF Descargar | [ Datasheet MIC29510-5.0BT.PDF ] | |
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