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MIC2212 Datasheet, PDF (1/10 Pages) Micrel Semiconductor – Dual uCap LDO and Power-On Reset | |||
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MIC2212
Micrel
MIC2212
Dual µCap LDO and Power-On Reset
General Description
The MIC2212 is a dual µCap, low dropout regulator with
power-on reset circuit. The first regulator is capable of sourc-
ing 150mA, while the second regulator can source up to
300mA and includes a power-on reset function.
Ideal for battery operated applications, the MIC2212 offers
1% accuracy, extremely low dropout voltage (80mV @
100mA), and extremely low ground current, only 48µA total.
Equipped with TTL-logic-compatible enable pins, the MIC2212
can be put into a zero-off-mode current state, drawing no
current when disabled.
The MIC2212 is a µCap design, operating with very small
ceramic output capacitors for stability, reducing required
board space and component cost.
The MIC2212 is available in fixed output voltages in the
10-pin 3mm à 3mm MLF⢠leadless package.
Features
⢠Input voltage range: 2.25V to 5.5V
⢠Stable with ceramic output capacitor
⢠2 LDO outputs
⢠Output 1 â 150mA output current
⢠Output 2 â 300mA output current
⢠Power-on reset function with adjustable delay time
⢠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 à 3mm MLF⢠package
Applications
⢠Cellular/PCS phones
⢠Wireless modems
⢠PDAs
Typical Application
Li-Ion
Battery
MIC2212-xxBML
VIN
VOUT1
EN1
VOUT2
EN2
POR
CBYP
SET
GND
VI/O
VCORE
/RST
Baseband
µProcessor
COUT = 1µF
Ceramic
Sets delay for POR
MIC2212 Typical Cell Phone Application
MicroLeadFrame and MLF are trademarks of Amkor Technology.
Micrel, Inc. ⢠1849 Fortune Drive ⢠San Jose, CA 95131 ⢠USA ⢠tel + 1 (408) 944-0800 ⢠fax + 1 (408) 474-1000 ⢠http://www.micrel.com
August 2004
1
M9999-080504
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