MIC29510 Datasheet, PDF (1/8 Pages) Micrel Semiconductor – 5A Fast-Response LDO Regulator Preliminary Information

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
V_IN
IN
OUT
GND
V_OUT
MIC29512
On
Off
EN
OUT
V_OUT
R1
V_IN
IN
ADJ
GND
R2
Fixed Regulator Configuration
V_OUT
=
1. 240

R1
R2
+
1^{}
Adjustable Regulator Configuration
3-96
1997