MIC5210-1 Micrel Semiconductor, MIC5210-1 Datasheet

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MIC5210-1

Manufacturer Part Number
MIC5210-1
Description
Dual 100mA LDO Regulator Advance Information
Manufacturer
Micrel Semiconductor
Datasheet
MIC5210
General Description
The MIC5210 is a dual linear voltage regulator with very low
dropout voltage (typically 10mV at light loads and 140mV at
100mA), very low ground current (225 A at 10mA output), and
better than 3% initial accuracy. It also features individual
logic-compatible enable/shutdown control inputs.
Designed especially for hand-held battery powered devices,
the MIC5210 can be switched by a CMOS or TTL compatible
logic signal, or the enable pin can be connected to the supply
input for 3-terminal operation. When disabled, power con-
sumption drops nearly to zero. Dropout ground current is
minimized to prolong battery life.
Key features include current limiting, overtemperature shut-
down, and protection against reversed battery.
The MIC5210 is available in 3.0V, 3.3V, 3.6V, 4.0V and 5.0V
fixed voltage configurations. Other voltages are available;
contact Micrel for details.
Typical Application
MM8 and Micrel Mini 8 are trademarks of Micrel, Inc.
April 1997•
Micrel, Inc. • 1849 Fortune Drive • San Jose, CA 95131 • USA • tel + 1 (408) 944-0800 • fax + 1 (408) 944-0970 • http://www.micrel.com
Output A
Output B
2.2µF
1µF
Low-Noise + Ultralow-Noise (Dual) Regulator
Ordering Information
Other voltages available. Contact Micrel for details.
Part Number
MIC5210-3.0BMM
MIC5210-3.3BMM
MIC5210-3.6BMM
MIC5210-4.0BMM
MIC5210-5.0BMM
C
470µF
BYP
1
2
3
4
Enable may be connected to V IN
MIC5210
1
Voltage
Features
• Micrel Mini 8™ MSOP package
• Guaranteed 100mA outputs
• Low quiescent current
• Low dropout voltage
• Wide selection of output voltages
• Tight load and line regulation
• Low temperature coefficient
• Current and thermal limiting
• Reversed input polarity protection
• Zero off-mode current
• Logic-controlled electronic enable
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
3.0
3.3
3.6
4.0
5.0
8
7
6
5
Dual 100mA LDO Regulator
Enable A
Enable B
Accuracy
1.0%
1.0%
1.0%
1.0%
1.0%
1µF
Advance Information
Junction Temp. Range*
MIC5210
–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
8-lead MSOP
8-lead MSOP
8-lead MSOP
8-lead MSOP
8-lead MSOP
Package
MIC5210
Micrel

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MIC5210-1 Summary of contents

Page 1

... It also features individual logic-compatible enable/shutdown control inputs. Designed especially for hand-held battery powered devices, the MIC5210 can be switched by a CMOS or TTL compatible logic signal, or the enable pin can be connected to the supply input for 3-terminal operation. When disabled, power con- sumption drops nearly to zero ...

Page 2

... OUTB INB BYPB 4 5 ENB MIC5210BMM Pin Function Regulator Output A Ground: Both pins must be connected together. Regulator Output B Reference Bypass B: Connect external 470pF capacitor to GND to reduce output noise in regulator “B”. May be left open. Enable/Shutdown B (Input): CMOS compatible input. Logic high = enable, logic low or open = shutdown ...

Page 3

... The maximum allowable power A . Exceeding the maximum allowable power dissipation JA of the 8-lead MSOP (MM) is 200 C/W JA Micrel Units % % ppm %/ MIC5210 ...

Page 4

... Power Supply Rejection Ratio OUT -20 -40 -60 - 100 A OUT OUT -100 1E+1 1E+2 1E+3 1E+4 1E+5 1E+6 1E+7 10 100 1k 10k 100k 1M 10M FREQUENCY (Hz) MIC5210 Turn-On Time vs. Bypass Capacitance 10000 1000 100 10 10 100 1000 10000 CAPACITANCE (pF) Power Supply Rejection Ratio -20 OUT -40 -60 -80 ...

Page 5

... The capacitor can be reduced to 0.47 F for current below 10mA or 0.33 F for currents below 1mA. No-Load Stability The MIC5210 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 6

... MIC5210 Package Information 0.122 (3.10) 0.112 (2.84) 0.036 (0.90) 0.032 (0.81) 0.012 (0.03) 0.0256 (0.65) TYP MIC5210 0.199 (5.05) DIMENSIONS: 0.187 (4.74) INCH (MM) 0.120 (3.05) 0.116 (2.95) 0.043 (1.09) 0.038 (0.97) 0.012 (0.30) R 0.008 (0.20) 5 MAX 0.004 (0.10) 0 MIN 0.039 (0.99) 0.035 (0.89) 0.021 (0.53) 8-Lead MSOP (MM) MM8™ Micrel Mini 8™ 6 Micrel 0.007 (0.18) 0.005 (0.13) 0.012 (0.03) R April 1997• ...

Page 7

... MIC5210 April 1997• 7 Micrel MIC5210 ...

Page 8

... 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. MIC5210 + 1 (408) 944-0970 http://www ...

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