MIC5252-3.0BML TR Micrel Inc, MIC5252-3.0BML TR Datasheet

IC REG LDO 150MA 3.0V 6-MLF

MIC5252-3.0BML TR

Manufacturer Part Number
MIC5252-3.0BML TR
Description
IC REG LDO 150MA 3.0V 6-MLF
Manufacturer
Micrel Inc
Datasheet

Specifications of MIC5252-3.0BML TR

Regulator Topology
Positive Fixed
Voltage - Output
3V
Voltage - Input
Up to 6V
Voltage - Dropout (typical)
0.135V @ 150mA
Number Of Regulators
1
Current - Output
150mA
Current - Limit (min)
250mA
Operating Temperature
-40°C ~ 125°C
Mounting Type
Surface Mount
Package / Case
6-MLF®, QFN
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Other names
MIC5252-3.0BMLTR
MIC5252-3.0BMLTR
MIC5252
General Description
The MIC5252 is an efficient, precise CMOS voltage regulator
optimized for ultra-low-noise applications. It offers 1% initial
accuracy, extremely-low dropout voltage (135mV at 150mA)
and low ground current (typically 90µA). The MIC5252
provides a very-low-noise output, ideal for RF applications
where a clean voltage source is required. The MIC5252 has
a high PSRR even at low supply voltages, critical for battery
operated electronics. A noise bypass pin is also available for
further reduction of output noise.
Designed specifically for handheld and battery-powered
devices, the MIC5252 provides a TTL-logic-compatible en-
able pin. When disabled, power consumption drops nearly
to zero.
The MIC5252 also works with low-ESR ceramic capacitors,
reducing the amount of board space necessary for power
applications, critical in handheld wireless devices.
Key features include current limit, thermal shutdown, faster
transient response, and an active clamp to speed up device
turn-off. The MIC5252 is available in the 6-pin 2mm × 2mm
MLF™ package and the IttyBitty® SOT-23-5 package in a
wide range of output voltages.
Typical Application
IttyBitty is a registered trademark of Micrel, Inc.
MicroLeadFrame and MLF are trademarks of Amkor Technology.
February 2005
Micrel, Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel + 1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com
C
IN
Shutdown
EN (pin 3) m ay be
connected directly
to IN (pin 1).
= 1.0µF
Ceramic
Enable
EN
V
IN
MIC5252-x.xBM5
1
2
3
5
4
V
C
OUT
C
Ceramic
BYP
OUT
= 0.01µF
= 1.0µF
SHUTDOWN
ENABLE
1
Features
• Input voltage range: 2.7V to 6.0V
• PSRR = 50dB @ V
• Ultra-low output noise: 30µV(rms)
• Stability with ceramic output capacitors
• Ultra-low dropout: 135mV @ 150mA
• High output accuracy:
• Low quiescent current: 90µA
• Tight load and line regulation
• TTL-Logic-controlled enable input
• “Zero” off-mode current
• Thermal shutdown and current limit protection
Applications
• Cellular phones and pagers
• Cellular accessories
• Battery-powered equipment
• Laptop, notebook, and palmtop computers
• Consumer/personal electronics
150mA High PSRR, Low Noise µCap CMOS LDO
Ultra-Low-Noise Regulator Application
V
EN
1.0% initial accuracy
2.0% over temperature
IN
MIC5252-x.xBML
O
MIC5252
1
2
3
+ 0.3V
6
5
4
C
(optional)
BYP
M9999-020305
C
Micrel, Inc.
OUT
V
OUT

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MIC5252-3.0BML TR Summary of contents

Page 1

... Key features include current limit, thermal shutdown, faster transient response, and an active clamp to speed up device turn-off. The MIC5252 is available in the 6-pin 2mm × 2mm MLF™ package and the IttyBitty® SOT-23-5 package in a wide range of output voltages. ...

Page 2

... Ordering Information Part Number Standard Pb-Free MIC5252-1.8BM5 MIC5252-1.8YM5 MIC5252-2.5BM5 MIC5252-2.5YM5 MIC5252-2.8BM5 MIC5252-2.8YM5 MIC5252-2.85BM5 MIC5252-2.85YM5 MIC5252-3.0BM5 MIC5252-3.0YM5 MIC5252-4.75BM5 MIC5252-4.75YM5 MIC5252-2.8BML MIC5252-2.8YML MIC5252-2.85BML MIC5252-2.85YML MIC5252-3.0BML MIC5252-3.0YML Other voltages available. Contact Micrel for details. Pin Configuration EN GND L6xx 4 5 BYP OUT MIC5252-x.xBM5 SOT-23-5 (M5) ...

Page 3

... BYP 48 48 250 425 30 1.6 0.01 0.01 500 150 10 (max)–T )/θ . Exceeding the maximum allowable the MIC5252-x.xBM5 (all ver- JA Micrel, Inc. IN Max Units 0 150 mV 200 mV 250 mV 1 µA 150 µA 200 µA ...

Page 4

... MIC5252 Typical Characteristics with B ypas s V ariation ( 0. OUT 1µF 100nF 50 40 0nF 10nF 1µF C eramic OUT 0.3V IN OUT 2.8V OUT Load = 150mA 0 10k 10 100 1k 100k 1M FREQUENCY (Hz 100Hz 90 80 100µ 150mA 1µF OUT 10nF 2.8V OUT 0 VOLTAGE DROP (mV) G round C urrent vs ...

Page 5

... MIC5252 Dropout vs . Output C urrent 200 180 160 140 120 100 2.8V OUT 100 120 140 160 OUTPUT CURRENT (mA) S hort C irc uit C urrent vs . Input S uppl y V oltage 500 450 400 350 300 250 200 150 100 50 2.8V OUT 0 2.7 3.2 3.7 4 ...

Page 6

... MIC5252 Functional Characteristics EnablePin Delay TIME (10 µs/div) M9999-020305 Load Transient Response 150mA 100µA TIME (40 µs/div) Line Transient Response 5V 3.3V 50mALoad TIME (10 µs/div) 6 Micrel, Inc 2.85V OUT 1µF Ceramic OUT February 2005 ...

Page 7

... MIC5252 Block Diagram IN Reference Voltage E N Thermal Sensor Under- voltage Lockout GND February 2005 Startup/ Quickstart/ Shutdown Noise Control Cancellation FAU LT Error Current Amplifier Amplifier ACTIV E SHU TDO Micrel, Inc M9999-020305 ...

Page 8

... PSRR. Turn-on time increases slightly with respect to bypass capacitance. A unique quick-start circuit allows the MIC5252 to drive a large capacitor on the bypass pin without significantly slowing turn-on time. Refer to the “Typi- cal Characteristics” section for performance with different bypass capacitors ...

Page 9

... MIC5252 Package Information MICREL INC. 2180 FORTUNE DRIVE SAN JOSE, CA 95131 USA + 1 (408) 944-0800 TEL This information furnished by Micrel in this data sheet is believed to be accurate and reliable. However no responsibility is assumed by Micrel for its use. Micrel reserves the right to change circuitry and specifications at any time without notification to the customer. ...

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