MIC2210 Datasheet, PDF (1/12 Pages) Micrel Semiconductor – Dual Cap LDO with Open-Drain Driver

MIC2210
Micrel
MIC2210
Dual µCap LDO with Open-Drain Driver
REV. 11/04
General Description
The MIC2210 is a dual µCap low dropout regulator with an
open-drain driver and power-on reset circuit. The first regulator
is capable of sourcing 150mA, while the second regulator can
source up to 300mA and includes a power-on reset function.
The open-drain output is capable of sinking 150mA for LED
backlighting applications.
Ideal for battery operated applications, the MIC2210 offers 1%
accuracy, extremely low dropout voltage (80mV @ 100mA),
and extremely low ground current, only 48µA total. Equipped
with a TTL logic compatible enable pin*, the MIC2210 can
be put into a zero-off-mode current state, drawing no current
when disabled.
The MIC2210 is a µCap design, operating with very small
ceramic output capacitors for stability, reducing required
board space and component cost.
The MIC2210 is available in fixed output voltages in the
10-pin 3mm × 3mm MLF™ leadless package and is also
available with adjustable output voltages in the 4mm × 4mm
16-pin MLF™ package.
* For each output.
Features
• Input voltage range: 2.25V to 5.5V
• Stable with ceramic output capacitor
• 2 LDO outputs
• Output 1 - 150mA output current
• Output 2 - 300mA output current
• 1 Open-drain driver
• Low dropout voltage of 80mV @ 100mA
• Ultra-low quiescent current of 48µA
• High output accuracy:
• +1.0% initial accuracy
• +2.0% over temperature
• Thermal shutdown protection
• Current limit protection
• Tiny 10-pin 3mm × 3mm MLF™ package
Applications
• Cellular/PCS phones
• Wireless modems
• PDAs
Typical Application
MIC2210-xxBML
VIN
VOUT1
EN1
VOUT2
EN2
ERR
CBYP
DRV
C_BYP
SW
GND
LED x10
Keyboard
Backlight
Audio Amp
Baseband IC
1F 1F
MIC2210 Typical Cellphone Application
MicroLeadFrame and MLF are trademarks of Amkor Technology, Inc.
Micrel, Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel + 1 [phone] • fax + 1 [phone] • http://www.micrel.com
November 2004
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MIC2210