MIC5219-5.0BM5 TR Micrel Inc, MIC5219-5.0BM5 TR Datasheet

IC REG LDO 500MA 1% 5.0V SOT23-5

MIC5219-5.0BM5 TR

Manufacturer Part Number
MIC5219-5.0BM5 TR
Description
IC REG LDO 500MA 1% 5.0V SOT23-5
Manufacturer
Micrel Inc
Datasheet

Specifications of MIC5219-5.0BM5 TR

Regulator Topology
Positive Fixed
Voltage - Output
5V
Voltage - Input
Up to 12V
Voltage - Dropout (typical)
0.35V @ 500mA
Number Of Regulators
1
Current - Output
500mA
Operating Temperature
-40°C ~ 125°C
Mounting Type
Surface Mount
Package / Case
SOT-23-5, SC-74A, SOT-25
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Current - Limit (min)
-
Other names
MIC5219-5.0BM5TR
MIC5219-5.0BM5TR
MM8 is a registered trademark of Micrel, Inc.
MicroLeadFrame and MLF are registered trademarks of Amkor Technology, Inc..
General Description
The MIC5219 is an efficient linear voltage regulator with high
peak output current capability, very-low-dropout voltage, and
better than 1% output voltage accuracy. Dropout is typically
10mV at light loads and less than 500mV at full load.
The MIC5219 is designed to provide a peak output current for
start-up conditions where higher inrush current is demanded.
It features a 500mA peak output rating. Continuous output
current is limited only by package and layout.
The MIC5219 can be enabled or shut down by a CMOS or
TTL compatible signal. When disabled, power consumption
drops nearly to zero. Dropout ground current is minimized to
help prolong battery life. Other key features include reversed-
battery protection, current limiting, overtemperature shutdown,
and low noise performance with an ultra-low-noise option.
The MIC5219 is available in adjustable or fixed output volt-
ages in the space-saving 6-pin (2mm × 2mm) MLF
(2mm × 2mm) Thin MLF
MSOP packages. For higher power requirements see the
MIC5209 or MIC5237.
All support documentation can be found on Micrel’s web site
at www.micrel.com.
June 2009
Typical Applications
SHUTDOWN
SH U TD OWN
ENABLE
Micrel, Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel + 1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com
E N A B L E
V
OUT
V
tantalum
IN
Ultra-Low-Noise Regulator (Fixed)
6V
5V
V
EN
2.2µF
IN
5V Ultra-Low-Noise Regulator
®
470pF
1
2
3
4
MIC5219-5.0BMM
SOT-23-5 and MM8
MIC5219-x.xYM L
1
2
3
6
5
4
8
7
6
5
C
(optional)
BYP
®
8-pin power
®
, 6-pin
C
OUT
V
OUT
1
Features
• 500mA output current capability
• Low 500mV maximum dropout voltage at full load
• Extremely tight load and line regulation
• Tiny SOT-23-5 and MM8™ power MSOP-8 package
• Ultra-low-noise output
• Low temperature coefficient
• Current and thermal limiting
• Reversed-battery protection
• CMOS/TTL-compatible enable/shutdown control
• Near-zero shutdown current
Applications
• Laptop, notebook, and palmtop computers
• Cellular telephones and battery-powered equipment
• Consumer and personal electronics
• PC Card V
• SMPS post-regulator/DC-to-DC modules
• High-efficiency linear power supplies
SHUTDOWN
ENABLE
SOT-23-5 package - 500mA peak
2mm×2mm MLF
2mm×2mm Thin MLF
continuous
MSOP-8 package - 500mA continuous
500mA-Peak Output LDO Regulator
SH U TD OWN
Ultra-Low-Noise Regulator (Adjustable)
E N A B L E
V
EN
IN
3.3V Ultra-Low-Noise Regulator
V
CC
IN
4V
and V
MIC5219-3.3BM5
MIC5219
®
PP
1
2
3
package - 500mA continuous
regulation and switching
MIC5219YMT
1
2
3
®
package - 500mA
4
5
6
5
4
470pF
470pF
2.2µF
tantalum
V
OUT
M0371-061809
R1
R2
3.3V
+
2.2µF
V
OUT

Related parts for MIC5219-5.0BM5 TR

MIC5219-5.0BM5 TR Summary of contents

Page 1

... It features a 500mA peak output rating. Continuous output current is limited only by package and layout. The MIC5219 can be enabled or shut down by a CMOS or TTL compatible signal. When disabled, power consumption drops nearly to zero. Dropout ground current is minimized to help prolong battery life ...

Page 2

... MIC5219-x.xBMM / MM8 / MSOP-8 Fixed Voltages (Top View GND GND 2 7 OUT GND GND 4 5 MIC5219YMM / MIC5219BMM ® MM8 MSOP-8 Adjustable Voltage (Top View) June 2009 Marking Standard Pb-Free* Volts — — 2.5V — — 2.85V — — 3.0V — — ...

Page 3

Pin Description Pin No. Pin No. Pin No. MLF-6 MSOP-8 SOT-23-5 TMLF 5– (fixed) 4 (fixed) 5(NC) 4 (adj.) 4 (adj.) EP — — June 2009 Pin ...

Page 4

Absolute Maximum Ratings Supply Input Voltage (V ) ..............................–20V to +20V IN Power Dissipation (P ) ............................. Internally Limited D Junction Temperature (T ) ........................ –40°C to +125°C J Storage Temperature (T ) ........................ –65°C to +150°C S Lead Temperature ...

Page 5

Notes: 1. Absolute maximum ratings indicate limits beyond which damage to the component may occur. Electrical specifications do not apply when operating the device outside of its operating ratings. The maximum allowable power dissipation is a function of the maximum ...

Page 6

Typical Characteristics Power Supply Rejection Ratio OUT -20 -40 -60 - 100µA OUT C = 1µF OUT -100 1k 10k 100k 1M 10M 1E+1 1E+2 1E+3 1E+4 1E+5 1E+6 1E+7 ...

Page 7

Ground Current vs. Output Current 100 200 300 400 500 OUTPUT CURRENT (mA) June 2009 Ground Current vs. Supply Voltage =500mA ...

Page 8

... Block Diagrams C (optional June 2009 Bandgap Ref Current Limit Thermal Shutdown MIC5219-x.xBM5/M/YMT GND Ultra-Low-Noise Fixed Regulator IN Bandgap Ref Current Limit Thermal Shutdown MIC5219BM5/MM/YMT GND Ultra-Low-Noise Adjustable Regulator 8 OUT OUT (optional) M0371-061809 ...

Page 9

... The capacitor can be reduced to 0.47µF for current below 10mA, or 0.33µF for currents below 1mA. No-Load Stability The MIC5219 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 10

... PC board reduces the thermal resistance of the device. This improved thermal resistance improves power dissipation and allows for a larger safe operating region. Figures 3 and 4 show safe operating regions for the MIC5219-x. June 2009 xBMM, the power MSOP package part. These graphs show three typical operating regions at different temperatures ...

Page 11

... DUTY CYCLE (%) a. 25°C Ambient Figure 2. MIC5219-x.xBM5 (SOT-23-5) on 1-inch 10 100mA 8 200mA 6 300mA 4 400mA 2 500mA 100 DUTY CYCLE (%) a. 25°C Ambient Figure 3. MIC5219-x.xBMM (MSOP-8) on Minimum Recommended Footprint 10 200mA 8 300mA 6 400mA 4 500mA 100 DUTY CYCLE (%) a. 25°C Ambient Figure 4. MIC5219-x.xBMM (MSOP-8) on 1-inch June 2009 10 ...

Page 12

... BYP and GND to reduce output noise. Note that the minimum value of C capacitor is used. Adjustable Regulator Circuits Figure 7. Low-Noise Adjustable Voltage Regulator Figure 7 shows the basic circuit for the MIC5219 adjustable regulator. The output voltage is configured by selecting values for R1 and R2 using the following formula: V OUT Although ADJ is a high-impedance input, for best performance, R2 should not exceed 470kΩ ...

Page 13

Package Information June 2009 8-Pin MSOP (MM) SOT-23-5 (M5) 13 M0371-061809 ...

Page 14

MICREL, INC. 2180 FORTUNE DRIVE SAN JOSE, CA 95131 USA + 1 (408) 944-0800 tel The information furnished by Micrel in this data sheet is believed to be accurate and reliable. However, no responsibility is assumed by Micrel for its ...

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