MIC5207-3.0BM5 Micrel Inc, MIC5207-3.0BM5 Datasheet

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MIC5207-3.0BM5

Manufacturer Part Number
MIC5207-3.0BM5
Description
Manufacturer
Micrel Inc
Datasheet

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Part Number:
MIC5207-3.0BM5
Manufacturer:
MICREL
Quantity:
496
Part Number:
MIC5207-3.0BM5
Manufacturer:
MIC
Quantity:
20 000
MIC5207
General Description
The MIC5207 is an efficient linear voltage regulator with ultra-
low-noise output, very low dropout voltage (typically 17mV at
light loads and 165mV at 150mA), and very low ground
current (720 A at 100mA output). The MIC5207 offers better
than 3% initial accuracy.
Designed especially for hand-held, battery-powered devices,
the MIC5207 includes a CMOS or TTL compatible enable/
shutdown control input. When shutdown, power consump-
tion drops nearly to zero.
Key MIC5207 features include a reference bypass pin to
improve its already low-noise performance, reversed-battery
protection, current limiting, and overtemperature shutdown.
The MIC5207 is available in fixed and adjustable output
voltage versions in a small SOT-23-5 package. Contact
Micrel for details.
For low-dropout regulators that are stable with ceramic
output capacitors, see the Cap MIC5245/6/7 family.
Typical Application
January 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 Marketing for information.
Part Number*
MIC5207BM5
MIC5207-1.8BM5
MIC5207-2.5BM5
MIC5207-3.0BM5
MIC5207-3.3BM5
MIC5207-3.6BM5
MIC5207-3.8BM5
MIC5207-4.0BM5
MIC5207-5.0BM5
MIC5207-3.3BZ
Battery-Powered Regulator Application
EN (pin 3) may be
connected directly
to IN (pin 1).
Shutdown
Enable
Enable
V
IN
MIC5207-x.xBM5
1
2
3
Marking
1
LEAA
LE18
LE25
LE30
LE33
LE36
LE38
LE40
LE50
Features
• Ultra-low-noise output
• High output voltage accuracy
• Guaranteed 180mA output
• Low quiescent current
• Low dropout voltage
• Extremely tight load and line regulation
• Very low temperature coefficient
• Current and thermal limiting
• Reverse-battery protection
• “Zero” off-mode current
• Logic-controlled electronic enable
Applications
• Cellular telephones
• Laptop, notebook, and palmtop computers
• Battery-powered equipment
• PCMCIA V
• Consumer/personal electronics
• SMPS post-regulator/dc-to-dc modules
• High-efficiency linear power supplies
5
4
C
(OPTIONAL)
BYP
180mA Low-Noise LDO Regulator
Voltage
V
C
tantalum
Adj
OUT
1.8
2.5
3.0
3.3
3.6
3.8
4.0
5.0
3.3
OUT
CC
= 2.2µF
Low-Noise Operation:
C
and V
BYP
Junction Temp. Range
= 470pF, C
MIC5207
–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
PP
0 C to +125 C
regulation/switching
OUT
2.2µF
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
Package
TO-92
MIC5207
Micrel

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MIC5207-3.0BM5 Summary of contents

Page 1

... PCMCIA V • Consumer/personal electronics • SMPS post-regulator/dc-to-dc modules • High-efficiency linear power supplies Ordering Information Part Number* Marking Voltage MIC5207BM5 LEAA MIC5207-1.8BM5 LE18 MIC5207-2.5BM5 LE25 MIC5207-3.0BM5 LE30 MIC5207-3.3BM5 LE33 MIC5207-3.6BM5 LE36 MIC5207-3.8BM5 LE38 MIC5207-4.0BM5 LE40 MIC5207-5.0BM5 LE50 MIC5207-3.3BZ — * Other voltages available. Contact Micrel Marketing for information. ...

Page 2

... OUT Regulator Output Operating Ratings (Note 1) Input Voltage (V Enable Input Voltage (V Junction Temperature (T all except 1.8V ...................................... – +125 C 1.8V only .................................................. +125 C Thermal Resistance 2 EN GND LExx 4 5 BYP OUT MIC5207-x.xBM5 SOT-23-5 (Fixed Voltages) (Note 2) ) ....................................... +2.5V to +16V IN ) .................................. )......................................... Note 3 JA January 2000 Micrel IN ...

Page 3

... Exceeding the maximum J(max the SOT-23-5 JA Micrel Units % % ppm/ C %/ MIC5207 ...

Page 4

... Power Supply Rejection Ratio -20 OUT -40 - 100mA -80 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) MIC5207 Power Supply Rejection Ratio -20 OUT -40 - 100 A OUT - 2.2 F OUT C = 0.01 F BYP -100 1E+1 1E+2 1E+3 1E+4 1E+5 1E+6 1E+7 ...

Page 5

... BYP 0.0001 1E+1 1E+2 1E+3 1E+4 1E+5 1E+6 1E 10k 100k 1M 10M 100 FREQUENCY (Hz) Noise Performance 10 1 100mA 0.1 1mA 0. OUT 10mA OUT 0.001 electrolytic C = 10nF BYP 0.0001 1E+1 1E+2 1E+3 1E+4 1E+5 1E+6 1E+7 10 100 1k 10k 100k 1M 10M FREQUENCY (Hz) MIC5207 ...

Page 6

... MIC5207-x.xBZ Low-Noise Fixed Regulator (TO-92 version only) IN BYP Bandgap Ref. V REF EN Current Limit Thermal Shutdown MIC5207-x.xBM5 Ultra-Low-Noise Fixed Regulator IN Bandgap Ref Current Limit Thermal Shutdown MIC5207BM5 GND Ultra-Low-Noise Adjustable Regulator 6 OUT V OUT C OUT GND OUT V OUT C OUT GND OUT V OUT C OUT ...

Page 7

... 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 MIC5207 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

... OUT is returned to a negative supply, the output voltage must be diode clamped to ground. V OUT USB Application 1.0µF Figure 4 shows the MIC5207-3.3BZ (3-terminal, TO-92 USB application. Since the V 10 inches from the regulator input capacitor is in- cluded. USB Controller OUT ON/OFF OVERCURRENT GND 1µ ...

Page 9

... Max Uncontrolled Lead Diameter 0.500 (12.70) Min. 0.105 (2.667) 0.095 (2.413) TO-92 (Z) 9 DIMENSIONS: MM (INCH) 0.20 (0.008) 0.09 (0.004) 0.60 (0.024) 0.10 (0.004) 0.145 (3.683) 0.135 (3.429) 5 typ. 5 typ. 0.0155 (0.3937) 0.0145 (0.3683) Micrel MIC5207 ...

Page 10

... MIC5207 MIC5207 10 Micrel January 2000 ...

Page 11

... MIC5207 January 2000 11 Micrel MIC5207 ...

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. MIC5207 + 1 (408) 944-0970 http://www ...

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