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Part: MIC2213-xxBML
Category:
Power Management
-> Regulators
-> Low Drop Out Regulators
Description: MIC2213 Sequenced Portable Power Management ic
Company: Micrel Semiconductor
Datasheet: Download MIC2213-xxBML datasheet File size : 712 kB
Request For quote: Find where to buy MIC2213-xxBML
Datasheet text preview:
MIC2213
Micrel
MIC2213
Sequenced Portable Power Management IC
General Description
The MIC2213 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. A power-on reset function monitors both outputs, indicating a fault on either output 1 or output 2. The open-drain output is capable of sinking 150mA for LED backlighting applications. The MIC2213 adds the additional feature of sequencing between the outputs, with the output of regulator 1 having to settle before the output of regulator 2 can begin to turn-on. Ideal for battery operated applications, the MIC2213 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 MIC2213 can be put into a zero-off-mode current state, drawing no current when disabled. The MIC2213 is a µCap design, operating with very small ceramic output capacitors for stability, reducing required board space and component cost. The MIC2213 is available in fixed output voltages in the 10-pin 3mm × 3mm MLFTM leadless package and is also available with adjustable output voltages in the 4mm × 4mm 16-pin MLFTM package.
Features
· 2 LDO outputs · Output 1 - 150mA output current · Output 2 - 300mA output current · 1 Open-drain driver · Power-on reset function with adjustable delay time · Sequencing between outputs 1 and 2 · Input voltage range: 2.25V to 5.5V · Stable with ceramic output capacitor · 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 3mm × 3mm MLFTM-10 package
Applications
· Cellular/PCS phones · Wireless modems · PDAs
Typical Application
100k MIC2213-xxBML VIN 1µF
OFF ON
VIN EN CBYP
VOUT1 VOUT2 POR DRV
VANALOG VDIGITAL VCORE /RST Baseband µProcessor 1µF Ceramic Keyboard Backlighting LED MEMORY
0.01µF
OFF
ON
SW SET CDELAY GND
MIC2213 Typical Cellphone 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
1
M IC2213
MIC2213
Micrel
Ordering Information
Full Part Number MIC2213-1.8/2.85BML MIC2213-2.6/2.85BML MIC2213-Adj/AdjBML Manufacturing Part Number MIC2213-GNBML MIC2213-KNBML* MIC2213-AABML Voltage* (Vo1/Vo2) 1.8V/2.85V 2.6V/2.85V Adj/Adj Junction Temp. Range 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 16-Pin 4×4 MLFTM
* Contact Micrel Marketing for availability of this and other options.
Voltage Code Adj. A 1.5 F 1.6 W 1.8 G 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
MIC2213
2
July 2003
MIC2213
VOUT1 VIN VIN
Micrel
VOUT2
Pin Configuration
16 EN 1 NC 2
VIN 1 EN 2 BYP 3 SW 4 SET 5 10 VOUT1 9 VOUT2 8 POR 7 DRV 6 GND
15
14
13 12 POR 11 DRV 10 ADJ 9 NGND
BYP 3 ADJ1 4 5
SW
6
SET
7
GND
8
GND
10-Pin 3mm × 3mm MLFTM (ML) (Top View)
16-Pin 4mm × 4mm MLFTM (ML)
Pin Description
Pin Number MLF-10 (3x3) 1 2 3 4 5 Pin Number MLF-16 (4x4) 15, 16 2 3 5 4 6 Pin Name VIN EN NC CBYP SW ADJ1 SET Pin Function Supply Input (VIN1 and VIN2 are internally tied together.) Enable Input for Regulator 1: Regulator 2 internally enabled when regulator 1 reaches 90% of nominal output. Active High input. Not internally connected. Reference Bypass: Connect external 0.01µF to GND to reduce output noise. May be left open. Active high signal drives open-drain N-channel MOSFET. Adjust Input (Regulator 1): Connect feedback resistors to program the output voltage for the regulator. 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. Ground for the open-drain driver. Tied to the source of the NMOSFET. Tied to GND internally. Adjust Input (Regulator 2): Connect feedback resistors to program the output voltage for the regulator. Open-Drain Output: Capable of sinking 150mA. 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 ground pin.
6 7 8 9 10 EP
7,8 9 10 11 12 13 14 EP
GND NGND ADJ2 DRV POR VOUT2 VOUT1 GND
July 2003
3
M IC2213
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