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Part: MIC2212-xxBML
Category:
Power Management
-> Regulators
-> Low Drop Out Regulators
Description: MIC2212 Dual µCap LDO And Power-on Reset
Company: Micrel Semiconductor
Datasheet: Download MIC2212-xxBML datasheet File size : 712 kB
Request For quote: Find where to buy MIC2212-xxBML
Datasheet text preview:
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 sourcing 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 × 3mm MLFTM leadless package.
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 · 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 × 3mm MLFTM package
Applications
· Cellular/PCS phones · Wireless modems · PDAs
Typical Application
MIC2212-xxBML VIN EN1 Li-Ion Battery EN2 CBYP SET GND VOUT1 VOUT2 POR 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) 944-0970 · http://www.micrel.com
July 2003
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M IC2212
MIC2212
Micrel
Ordering Information
Full Part Number MIC2212-1.8/2.8BML MIC2212-1.85/2.85BML MIC2212-1.85/2.9BML MIC2212-2.6/2.8BML MIC2212-2.6/2.85BML MIC2212-2.7/2.9BML MIC2212-2.8/2.8BML MIC2212-3.0/2.8BML MIC2212-3.3/2.8BML Manufacturing Part Number MIC2212-GMBML MIC2212-DNBML MIC2212-DOBML MIC2212-KMBML MIC2212-KNBML MIC2212-LOBML MIC2212-MMBML MIC2212-PMBML MIC2212-SMBML Voltage* (Vo1/Vo2) 1.8V/2.8V 1.85V/2.85V 1.85V/2.9V 2.6V/2.8V 2.6V/2.85V 2.7V/2.9V 2.8V/2.8V 3.0V/2.8V 3.3V/2.8V Junction Temp. Range 40°C to +125°C 40°C to +125°C 40°C to +125°C 40°C to +125°C 40°C to +125°C 40°C to +125°C 40°C to +125°C 40°C to +125°C 40°C to +125°C Package 10-Pin 3×3 MLFTM 10-Pin 3×3 MLFTM 10-Pin 3×3 MLFTM 10-Pin 3×3 MLFTM 10-Pin 3×3 MLFTM 10-Pin 3×3 MLFTM 10-Pin 3×3 MLFTM 10-Pin 3×3 MLFTM 10-Pin 3×3 MLFTM
* For other output voltage options, contact Micrel marketing.
Voltage Code Adj. A 1.5 F 1.6 W 1.8 G 1.85 D 1.9 Y 2.0 H 2.1 E 2.5 J 2.6 K 2.7 L 2.8 M 2.850 N 2.9 O 3.0 P 3.1 Q 3.2 R 3.3 S 3.4 T 3.5 U 3.6 V Table 1. Voltage Codes
MIC2212
2
July 2003
MIC2212
Micrel
Pin Configuration
VIN 1 EN1 2 EN2 3 BYP 4 SET 5
10 VOUT1 9 VOUT2 8 POR 7 NC 6 GND
10-Pin 3mm × 3mm MLFTM (ML) (Top View)
Pin Description
Pin Number MLF-10 (3x3) 1 2 3 4 5 Pin Name VIN EN1 EN2 CBYP SET Pin Function Supply Input: (VIN1 and VIN2 are internally tied together.) Enable Input to Regulator 1: Enables regulator 1 output. Active high input. High = on, low = off. Do not leave floating. Enable Input to Regulator 2: Enables regulator 2 output. Active high input. High = on, low = off. Do not leave floating. Reference Bypass: Connect external 0.01µF to GND to reduce output noise. May be left open. Delay Set Input: Connect external capacitor to GND to set the internal delay for the POR output. When left open, there is no delay. This pin cannot be grounded. Ground: Connect externally to Exposed Pad. No Connection. Power-On Reset Output: Open-drain output. Active low indicates an output undervoltage condition on regulator 2. Output of Regulator 2: 300mA output current. Output of Regulator 1: 150mA output current. Ground: Internally connected to the Exposed Pad. Connect externally to pin 6 of the IC.
6 7 8 9 10 EP
GND NC POR VOUT2 VOUT1 GND
July 2003
3
M IC2212
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