MIC29710 Datasheet, PDF (1/8 Pages) Micrel Semiconductor – 7.5A Fast-Response LDO Regulator

MIC29710/29712
Micrel
MIC29710/29712
7.5A Fast-Response LDO Regulator
General Description
The MIC29710 and MIC29712 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 MIC29710/2 is available in two versions: the three pin
fixed output MIC29710 and the five pin adjustable output
voltage MIC29712. All versions are fully protected against
overcurrent faults, reversed lead insertion, overtemperature
operation, and positive and negative 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 MIC29710/2 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
• 7.5A current capability
• 700mV dropout voltage at full load
• Low ground current
• Accurate 2% guaranteed tolerance
• “Zero” current shutdown mode (MIC29712)
• No minimum load current
• Fixed voltage and adjustable versions
Applications
• Pentium™, Pentium Plus™, 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 or input
voltage greater than 16V, see the MIC29750/29752.
Ordering Information
Part Number
MIC29710-3.3BT
MIC29710-5.0BT
MIC29712BT
* 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
7.5A
7.5A
7.5A
Package
TO-220-3
TO-220-3
TO-220-5
Typical Application
MIC29710
V_IN
IN
OUT
GND
V_OUT
MIC29712
On
Off
EN
OUT
V_OUT
R1
V_IN
IN
ADJ
GND
R2
R1
V_OUT = 1.240 _R2 1
Fixed Regulator Configuration
Adjustable Regulator Configuration
3-104
1997