MIC2214-1.8/2.8BML Micrel Semiconductor, MIC2214-1.8/2.8BML Datasheet

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MIC2214-1.8/2.8BML

Manufacturer Part Number
MIC2214-1.8/2.8BML
Description
Portable Power Management IC
Manufacturer
Micrel Semiconductor
Datasheet
General Description
The MIC2214 is a dual Cap, low dropout regulator with an
open-drain driver and power-on reset circuit. The first regu-
lator is capable of sourcing 150mA, while the second regula-
tor 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 MIC2214 offers
1% accuracy, extremely low dropout voltage (80mV @
100mA), and extremely low ground current, only 48 A total.
Equipped with a TTL-logic-compatible enable pin, the MIC2214
can be put into a zero-off-mode current state, drawing no
current when disabled.
The MIC2214 is a Cap design, operating with very small
ceramic output capacitors for stability, reducing required
board space and component cost.
The MIC2214 is available in fixed output voltages in the
10-pin 3mm
available with adjustable output voltages in the 4mm 4mm
16-pin MLF™ package.
Typical Application
Micro
August 2004
MIC2214
LeadFrame 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
3mm MLF™ leadless package and is also
0.01 F
V
IN
1 F
C
DELAY
OFF
OFF
ON
ON
MIC2214 Typical Cellphone Application
VIN
EN
CBYP
SW
SET
MIC2214-xxBML
GND
100k
VOUT1
VOUT2
POR
DRV
1
Features
• Input voltage range: 2.25V to 5.5V
• Stable with ceramic output capacitor
• 2 LDO outputs
• 1 Open-drain driver
• Power-on reset function with adjustable delay time
• Low dropout voltage of 80mV @ 100mA
• Ultra-low quiescent current of 48 A
• High output accuracy:
• Thermal shutdown protection
• Current limit protection
• Tiny 3mm
Applications
• Cellular/PCS phones
• Wireless modems
• PDAs
Keyboard Backlighting LED
• Output 1 – 150mA output current
• Output 2 – 300mA output current
• +1.0% initial accuracy
• +2.0% over temperature
Portable Power Management IC
Ceramic
1 F
3mm MLF™-10 package
MIC2214
V
V
V
/RST
Baseband
MEMORY
ANALOG
DIGITAL
CORE
Processor
MIC2214
Micrel

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MIC2214-1.8/2.8BML Summary of contents

Page 1

... MIC2214 General Description The MIC2214 is a dual Cap, low dropout regulator with an open-drain driver and power-on reset circuit. The first regu- lator is capable of sourcing 150mA, while the second regula- tor 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 ...

Page 2

... MIC2214 Ordering Information Full Part Number Manufacturing Part Number MIC2214-1.8/2.8BML MIC2214-GMBML MIC2214-1.85/2.6BML MIC2214-DKBML MIC2214-1.85/2.85BML MIC2214-DNBML MIC2214-2.5/1.8BML MIC2214-JGBML MIC2214-2.5/2.8BML MIC2214-JMBML MIC2214-2.5/3.0BML MIC2214-JPBML MIC2214-2.6/2.85BML MIC2214-KNBML MIC2214-2.7/3.0BML MIC2214-LPBML MIC2214-2.7/3.3BML MIC2214-LSBML MIC2214-3.0/1.6BML MIC2214-PWBML MIC2214-3.0/2.8BML MIC2214-PMBML MIC2214-3 ...

Page 3

... Output of Regulator 2: 300mA output current VOUT1 Output of Regulator 1: 150mA output current GND Ground: Internally connected to the exposed pad. Connect externally to ground pin EN1 1 12 POR EN2 11 DRV 2 BYP 3 10 ADJ ADJ1 4 9 NGND 16-Pin 4mm 4mm MLF™ (ML) Micrel MIC2214 ...

Page 4

... POR Output V Low Threshold nominal V TH High Threshold nominal V V POR output logic low voltage Flag leakage current, flag OFF POR MIC2214 Operating Ratings (Note 1) Supply Input Voltage (V Enable Input Voltage (V Junction Temperature (T Package Thermal Resistance MLF™-10 ( (Note 100 A; T ...

Page 5

... August 2004 = 150mA = 0mA 5.5V DRV < 0.6V (DRV shutdown) > 1.8V (DRV enabled High (ambient temperature relative to the highest output voltage. OUT 5 Min Typ 0.2 –1 0.01 1.8 –1 0.01 –1 0.01 0.75 1.25 1. – Exceeding the maximum D(max) J(max Micrel Max Units 0 MIC2214 ...

Page 6

... Dropout Voltage Output 1 150 150mA load 100 50 0 -40 - 100120140 TEMPERATURE ( C) Ground Current vs. Output 1 Current 100 120 140 OUTPUT 1 LOAD CURRENT (mA) MIC2214 PSRR Output 100nF BYP C = 10nF 60 BYP C = 1nF 40 BYP OUT I ...

Page 7

... OUTPUT 2 LOAD CURRENT (mA) Switch Threshold vs. Supply Voltage 1.20 Drive Current = 1mA 1.00 0.80 0.60 0.40 0.20 0.00 2.25 2.75 3.25 3.75 4.25 4.75 5.25 SUPPLY VOLTAGE (V) 7 Micrel Output Voltage 1 vs. Temperature 3.15 100 A load 3.10 3.05 3.00 2.95 2.90 2.85 -40 - 100120140 TEMPERATURE ( C) Enable Voltage Threshold vs. Supply Voltage 1.60 1.40 1.20 1.00 0.80 0.60 0.40 0.20 0.00 2.25 2.75 3.25 3.75 4.25 4.75 5.25 SUPPLY VOLTAGE (V) MIC2214 ...

Page 8

... MIC2214 Functional Characteristics Enable Characteristics Time (100 s/div) Load Transient Response (LDO OUT C = 0.01 F BYP +1V IN OUT Time (4 s/div) MIC2214 Ceramic OUT C = 0.01 F BYP 150mA 100 A 8 Micrel Power-On Reset Characteristics ...

Page 9

... SET CBYP SW Functional Description The MIC2214 is a high performance, low quiescent current power management IC consisting of two Cap low dropout regulators, a power-on reset (POR) circuit and an open-drain driver. The first regulator is capable of sourcing 150mA at output voltages from 1.25V to 5V. The second regulator is capable of sourcing 300mA of current at output voltages from 1 ...

Page 10

... AC performance capacitor or greater located close to the IC is recommended. Bypass Capacitor The internal reference voltage of the MIC2214 can be by- passed with a capacitor to ground to reduce output noise and increase power supply rejection (PSRR). A quick-start fea- ture allows for quick turn-on of the output voltage regardless of the size of the capacitor ...

Page 11

... MLF™ (ML (408) 474-1000 FAX Micrel for any damages resulting from such use or sale. © 2004 Micrel, Incorporated. 11 +0.15 1.60 —0.15 +0.15 0.80 —0.15 PIN 1 ID +0.07 —0.05 1 +0.15 1.15 2 —0.15 +0.15 3 2.30 —0.15 +0.15 0.40 —0.05 BOTTOM +0.07 0.23 —0.05 +0.04 0.01 —0.01 — 0.00 0.05 0.20 REF SEATING PLANE http://www.micrel.com WEB Micrel MIC2214 ...

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