MIC5211-1.8/2.5BM6 MICREL [Micrel Semiconductor], MIC5211-1.8/2.5BM6 Datasheet

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MIC5211-1.8/2.5BM6

Manufacturer Part Number
MIC5211-1.8/2.5BM6
Description
Dual ?Cap 80mA LDO Regulator Preliminary Information
Manufacturer
MICREL [Micrel Semiconductor]
Datasheet

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Part Number:
MIC5211-1.8/2.5BM6
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Quantity:
20 554
MIC5211
General Description
The MIC5211 is a dual Cap 80mA linear voltage regulator
with very low dropout voltage (typically 20mV at light loads),
very low ground current (225 A at 20mA output current), and
better than 3% initial accuracy. This dual device comes in the
miniature SOT-23-6 package, featuring independent logic
control inputs.
The Cap regulator design is optimized to work with low-
value, low-cost ceramic capacitors. The outputs typically
require only 0.1 F of output capacitance for stability.
Designed especially for hand-held, battery-powered devices,
ground current is minimized using Micrel’s proprietary Super
ßeta PNP™ technology to prolong battery life. When dis-
abled, power consumption drops nearly to zero.
Key features include SOT-23-6 packaging, current limiting,
overtemperature shutdown, and protection against reversed
battery conditions.
The MIC5211 is available in dual 1.8V, 2.5V, 2.7V, 2.8V,
3.0V, 3.3V, 3.6V, and 5.0V versions. Certain mixed voltages
are also available. Contact Micrel for other voltages.
Typical Application
November 2000
Micrel, Inc. • 1849 Fortune Drive • San Jose, CA 95131 • USA • tel + 1 (408) 944-0800 • fax + 1 (408) 944-0970 • http://www.micrel.com
Ordering Information
Other voltages available. Contact Micrel for details.
Part Number
MIC5211-1.8BM6
MIC5211-2.5BM6
MIC5211-2.7BM6
MIC5211-2.8BM6
MIC5211-3.0BM6
MIC5211-3.3BM6
MIC5211-3.6BM6
MIC5211-5.0BM6
Dual-Voltage Regulators
MIC5211-1.8/2.5BM6
MIC5211-1.8/3.3BM6
MIC5211-2.5/3.3BM6
MIC5211-3.3/5.0BM6
Shutdown
Shutdown
Enable
Enable
Enable A
Enable B
1
2
3
MIC5211
Marking
1
LFGG
LFQQ
LFCC
LFDD
LFBC
LFBB
LFEE
LFXX
LFCL
LFBL
LFLX
LFLL
Features
• Stable with low-value ceramic or tantalum capacitors
• Independent logic controls
• Low quiescent current
• Low dropout voltage
• Mixed voltages available
• Tight load and line regulation
• Low temperature coefficient
• Current and thermal limiting
• Reversed input polarity protection
• Zero off-mode current
• Dual regulator in tiny SOT-23 package
• 2.5V to 16V input range
Applications
• Cellular telephones
• Laptop, notebook, and palmtop computers
• Battery-powered equipment
• Bar code scanners
• SMPS post regulator/dc-to-dc modules
• High-efficiency linear power supplies
6
5
4
V
IN
0.1µF
1.8V/2.5V
1.8V/3.3V
2.5V/3.3V
3.3V/5.0V
Voltage
Dual Cap 80mA LDO Regulator
1.8V
2.5V
2.7V
2.8V
3.0V
3.3V
3.6V
5.0V
0.1µF
V
V
OUTA
OUTB
Preliminary Information
Junction Temp. Range
MIC5211
–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
0 C to +125 C
0 C to +125 C
0 C to +125 C
SOT-23-6
SOT-23-6
SOT-23-6
SOT-23-6
SOT-23-6
SOT-23-6
SOT-23-6
SOT-23-6
SOT-23-6
SOT-23-6
SOT-23-6
SOT-23-6
Package
MIC5211
Micrel

Related parts for MIC5211-1.8/2.5BM6

MIC5211-1.8/2.5BM6 Summary of contents

Page 1

... LFCC MIC5211-2.7BM6 LFDD MIC5211-2.8BM6 LFEE MIC5211-3.0BM6 LFGG MIC5211-3.3BM6 LFLL MIC5211-3.6BM6 LFQQ MIC5211-5.0BM6 LFXX Dual-Voltage Regulators MIC5211-1.8/2.5BM6 LFBC 1.8V/2.5V MIC5211-1.8/3.3BM6 LFBL 1.8V/3.3V MIC5211-2.5/3.3BM6 LFCL 2.5V/3.3V MIC5211-3.3/5.0BM6 LFLX 3.3V/5.0V Other voltages available. Contact Micrel for details ...

Page 2

... MIC5211 Pin Configuration Pin Description Pin Number Pin Name 1 ENA 2 GND 3 ENB 4 OUTB OUTA MIC5211 OUTA IN OUTB Part Pin 1 LFxx Identification Index ENA GND ENB Regulator A Regulator B Voltage Code Voltage Code ( OUTA OUTB ...

Page 3

... D Storage Temperature Range ................... – +150 C Lead Temperature (soldering, 5 sec.) ....................... 260 C ESD, (Note 3) ..................................................................... Electrical Characteristics 1V 1mA 0.1 F, and V IN OUT L L for one-half of dual MIC5211; unless noted. Symbol Parameter V Output Voltage O Accuracy Output Voltage O Temperature Coeffcient V /V Line Regulation ...

Page 4

... INPUT VOLTAGE (V) Short Circuit Current vs. Temperature 200 180 160 140 OUT 120 100 -60 - 120 150 TEMPERATURE ( C) 4 Micrel Dropout Characteristics (MIC5211-3. 100 50mA OUT ...

Page 5

... FREQUENCY (Hz) 5 Load Transient OUT OUT TIME (ms) Line Transient (MIC5211-3. 1mA -0.2 0.0 0.2 0.4 0.6 0.8 1.0 TIME (ms) Ripple Voltage vs. Frequency 100 50mA OUT 0 FREQUENCY (Hz) Micrel MIC5211 ...

Page 6

... F OUT 1. 1mA L 1. OFF 0.75 0.50 -60 - 120 150 TEMPERATURE ( C) Crosstalk Characteristic I = 100 A OUTB C = 0.47 F OUTB C = 0.47 F OUTA TIME (25ms/div.) 6 Micrel Enable Characteristics (MIC5211-3. 100 -0.2 0.0 0.2 0.4 0.6 0.8 1.0 TIME (ms) Enable Current vs. Temperature ...

Page 7

... C. Tantalum or ceramic capacitors are recommended for operation below –25 C. No-Load Stability The MIC5211 will remain stable and in regulation with no load (other than the internal voltage divider) unlike many other voltage regulators. This is especially important in CMOS RAM keep-alive applications. ...

Page 8

... Dual-Voltage Considerations For configurations where two different voltages are needed in the system, the MIC5211 has the option of having two independent output voltages from the same input. For ex- ample, a 3.3V rail and a 5.0V rail can be supplied from the MIC5211 for systems that require both voltages. Important ...

Page 9

... MIC5211 Package Information 1.90 (0.075) REF 0.95 (0.037) REF 3.00 (0.118) 2.80 (0.110) 0.50 (0.020) 0.35 (0.014) November 2000 1.75 (0.069) 3.00 (0.118) 1.50 (0.059) 2.60 (0.102) DIMENSIONS: MM (INCH) 1.30 (0.051) 0.90 (0.035 0.15 (0.006) 0.60 (0.024) 0.00 (0.000) 0.10 (0.004) SOT-23-6 (M6) 9 Micrel 0.20 (0.008) 0.09 (0.004) MIC5211 ...

Page 10

... MIC5211 MIC5211 10 Micrel November 2000 ...

Page 11

... MIC5211 November 2000 11 Micrel MIC5211 ...

Page 12

... This information is believed to be accurate and reliable, however no responsibility is assumed by Micrel for its use nor for any infringement of patents or other rights of third parties resulting from its use. No license is granted by implication or otherwise under any patent or patent right of Micrel Inc. MIC5211 + 1 (408) 944-0970 http://www ...

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