MIC5206-2.7BM5 반도체 회로 부품 판매점
150mA Low-Noise LDO Regulator
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 Micrel Semiconductor |
MIC5206
Micrel
MIC5206
150mA Low-Noise LDO Regulator
General Description
The MIC5206 is an efficient linear voltage regulator with very
low dropout voltage (typically 17mV at light loads and 165mV
at 150mA), and very low ground current (600µA at 100mA
output), with better than 1% initial accuracy. It has a logic
compatible enable/shutdown control input and an internal
undervoltage monitor.
Designed especially for hand-held, battery-powered devices,
the MIC5206 can be switched by a CMOS or TTL compatible
logic signal. When disabled, power consumption drops
nearly to zero. Dropout ground current is minimized to
prolong battery life.
Key features include an undervoltage monitor with an error
flag output, a reference bypass pin to improve its already low-
noise performance (8-lead versions only), reversed-battery
protection, current limiting, and overtemperature shutdown.
The MIC5206 is available in several fixed voltages in a tiny
SOT-23-5 package. It features a pinout, similar to the LP2980,
but has significantly better performance. Fixed and adjust-
able output voltage versions, featuring the reference bypass
option, are available in the 8-lead Micrel Mini 8™ 8-lead
MSOP (micro small-outline package).
For low-dropout regulators that are stable with ceramic
output capacitors, see the µCap MIC5245/6/7 family.
Features
• Error flag indicates undervoltage fault
• High output voltage accuracy
• Guaranteed 150mA output
• Ultra-low-noise output (8-lead versions)
• Low quiescent current
• Low dropout voltage
• Extremely tight load and line regulation
• Very low temperature coefficient
• Current and thermal limiting
• Reversed-battery protection
• “Zero” off-mode current
• Logic-controlled electronic enable
Applications
• Cellular telephones
• Laptop, notebook, and palmtop computers
• Battery-powered equipment
• PCMCIA VCC and VPP regulation/switching
• Consumer/personal electronics
• SMPS post-regulator/dc-to-dc modules
• High-efficiency linear power supplies
Typical Applications
MIC5206-x.xBM5
VIN 1
5
VOUT
Enable
Shutdown
Enable (pin 3) may be
connected directly to
Supply Input (pin 1).
2
3
100k
4
COUT
1µF tantalum
Flag Output
(optional)
VOUT
Flag Output
(optional)
tantalum
1µF
1
2
3
4
47k
8 VIN
7 Enable
Shutdown
6
5
R1 MIC5206BMM
Enable (pin 7) may be
connected directly to
Supply Input (pin 8).
R2
SOT-23-5 Fixed Voltage Application
Adjustable Voltage Application
Micrel Mini 8™ is a trademark of Micrel, Inc.
Micrel, Inc. • 1849 Fortune Drive • San Jose, CA 95131 • USA • tel + 1 (408) 944-0800 • fax + 1 (408) 944-0970 • http://www.micrel.com
January 2000
1
MIC5206
MIC5206
Ordering Information
Part Number
Marking Volts
MIC5206-2.5BM5
LD25
2.5
MIC5206-2.7BM5
LD27
2.7
MIC5206-3.0BM5
LD30
3.0
MIC5206-3.2BM5
LD32
3.2
MIC5206-3.3BM5
LD33
3.3
MIC5206-3.6BM5
LD36
3.6
MIC5206-3.8BM5
LD38
3.8
MIC5206-4.0BM5
LD40
4.0
MIC5206-5.0BM5
LD50
5.0
MIC5206BMM
— Adj
MIC5206-3.0BMM
— 3.0
MIC5206-3.3BMM
— 3.3
MIC5206-3.6BMM
— 3.6
MIC5206-3.8BMM
— 3.8
MIC5206-4.0BMM
— 4.0
MIC5206-5.0BMM
— 5.0
Other voltages available. Contact Micrel for details.
Accuracy
1%
1%
1%
1%
1%
1%
1%
1%
1%
1%
1%
1%
1%
1%
1%
1%
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
–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
Pin Configuration
EN GND IN
321
LDxx
45
FLAG
OUT
MIC5206-xxBM5
(Fixed Output Voltage)
Package
SOT-23-5
SOT-23-5
SOT-23-5
SOT-23-5
SOT-23-5
SOT-23-5
SOT-23-5
SOT-23-5
SOT-23-5
8-lead MSOP
8-lead MSOP
8-lead MSOP
8-lead MSOP
8-lead MSOP
8-lead MSOP
8-lead MSOP
OUT 1
OUT 2
FLAG 3
GND 4
8 IN
7 EN
6 GND
5 BYP
OUT 1
OUT 2
FLAG 3
GND 4
8 IN
7 EN
6 GND
5 ADJ
Micrel
Pin Description
MIC5206-x.xBMM
(Fixed Output Voltage)
MIC5206BMM
(Adjustable Ouput Voltage)
MIC5206
SOT-23-5
1
2
3
4
5
MIC5206
MSOP-8
8
4, 6
7
3
5 (fixed)
5 (adj.)
1,2
Pin Name
IN
GND
EN
FLAG
BYP
ADJ
OUT
Pin Function
Supply Input
Ground
Enable/Shutdown (Input): CMOS compatible input. Logic high = enable,
logic low or open = shutdown. Do not leave floating.
Error Flag (Output): Open-collector output. Active low indicates an ouput
undervoltage condition.
Reference Bypass: Connect external 470pF capacitor to GND to reduce
output noise. May be left open.
Adjust (Input): Adjustable regulator feedback input. Connect to resistor
voltage divider.
Regulator Output
MIC5206
2 January 2000
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제조업체: Micrel Semiconductor
( micrel )
MIC5206-2.7BM5 regulator
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