MIC5213-2.8BC5 Micrel Inc, MIC5213-2.8BC5 Datasheet

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MIC5213-2.8BC5

Manufacturer Part Number
MIC5213-2.8BC5
Description
Manufacturer
Micrel Inc
Datasheet

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June 2000
MIC5213
General Description
The MIC5213 is a Cap 80mA linear voltage regulator in the
Teeny™ SC-70 package. Featuring half the footprint of the
standard SOT-23 package, this Teeny SC-70 regulator has
very low dropout voltage (typically 20mV at light loads and
300mV at 80mA) and very low ground current (225 A at
20mA output). It also offers better than 3% initial accuracy
and includes a logic-compatible enable input.
The Cap regulator design is optimized to work with low-
value, low-cost ceramic capacitors. The outputs typically
require only 0.47 F of output capacitance for stability.
Designed especially for hand-held, battery-powered devices,
the MIC5213 can be controlled by a CMOS or TTL compatible
logic signal. When disabled, power consumption drops nearly
to zero. If on-off control is not required, the enable pin may be
tied to the input for 3-terminal operation. The ground current
of the MIC5213 increases only slightly in dropout, further
prolonging battery life. Key MIC5213 features include current
limiting, overtemperature shutdown, and protection against
reversed battery.
The MIC5213 is available in 2.5V, 2.8V, 3.0V, 3.3V, and 3.6V
fixed voltages. Other voltages are available; contact Micrel
for details.
Typical Applications
Teeny 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
Ordering Information
Other voltages available. Contact Micrel for details.
Part Number
MIC5213-2.5BC5
MIC5213-2.8BC5
MIC5213-3.0BC5
MIC5213-3.3BC5
MIC5213-3.6BC5
Shutdown
Enable
Regulator Circuit
1
2
3
1
Marking
LAM
LAG
LAE
LAD
LAJ
Features
• Teeny™ SC-70 package
• Wide Selection of output voltages
• Guaranteed 80mA output
• Low quiescent current
• Low dropout voltage
• Tight load and line regulation
• Low temperature coefficient
• Current and thermal limiting
• Reversed input polarity protection
• Zero off-mode current
• Logic-controlled shutdown
• Stability with low-ESR ceramic capacitors
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
Teeny™ SC-70 Cap Low-Dropout Regulator
5
4
Voltage
2.5V
2.8V
3.0V
3.3V
3.6V
0.47µF
V
OUT
Advance Information
Junction Temp. Range
MIC5213
–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
Package
SC-70-5
SC-70-5
SC-70-5
SC-70-5
SC-70-5
MIC5213
Micrel

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MIC5213-2.8BC5 Summary of contents

Page 1

... Laptop, notebook, and palmtop computers • Battery-powered equipment • Bar code scanners • SMPS post-regulator/dc-to-dc modules • High-efficiency linear power supplies Ordering Information Part Number Marking Voltage MIC5213-2.5BC5 LAM MIC5213-2.8BC5 LAJ MIC5213-3.0BC5 LAG MIC5213-3.3BC5 LAE MIC5213-3.6BC5 LAD Other voltages available. Contact Micrel for details. Enable 1 ...

Page 2

... Input Supply Voltage (V ) ............................ –20V to +20V IN Enable Input Voltage (V ) ........................... –20V to +20V EN Power Dissipation (P ) ............................ Internally Limited D Storage Temperature Range (T ) ............ – +150 C S Lead Temperature (Soldering, 5 sec.) ...................... 260 C ESD, Note 3 MIC5213 GND LAx 4 5 OUT IN SC-70-5 (C5) Pin Function Enable (Input): TTL/CMOS compatible control input. Logic high = enabled; ...

Page 3

... C; unless noted. J Min Typ Max Units – – 200 ppm/ C 0.008 0.3 % 0.5 % 0.08 0 200 350 mV 250 mV 300 600 mV 0. 180 A 225 750 A 850 A 1800 3000 A 200 300 A 180 250 mA 0.05 %/W 0.6 V 2 the junction-to-ambient thermal J(max) MIC5213 ...

Page 4

... OUTPUT CURRENT (mA) Output Voltage vs. Temperature 4 3 OUT 3.6 3.4 3.2 3 DEVICES 3 AVG / LO 2.8 CURVES APPLICABLE 2.6 AT 100 A AND 50mA 2.4 -60 - 120 150 TEMPERATURE ( C) MIC5213 Dropout Voltage vs. Temperature 400 OUT 300 I = 80mA L 200 I = 100 A L 100 I = 1mA L 0 -60 - 120 150 TEMPERATURE ( C) Ground Current vs ...

Page 5

... TIME (ms) Ripple Voltage vs. Frequency 100 1mA OUT 0 FREQUENCY (Hz) 5 Micrel Load Transient 100 OUT -100 OUT -200 100 TIME (ms) Line Transient 1mA -0.2 0.0 0.2 0.4 0.6 0.8 1.0 TIME (ms) Ripple Voltage vs. Frequency 100 50mA OUT 0 FREQUENCY (Hz) MIC5213 ...

Page 6

... MIC5213 Output Impedance 1000 100 I = 100 1mA 100mA L 0.1 0.01 FREQUENCY (Hz) MIC5213 Enable Characteristics (3.3V Version 100 -0.2 0.0 0.2 0.4 0.6 0.8 1.0 TIME (ms) Enable Voltage vs. Temperature 1. OUT 1. 1mA L 1. OFF 0.75 0.50 -60 - 120 150 TEMPERATURE ( C) 6 Micrel Enable Characteristics (3 ...

Page 7

... The output capacitor value can be increased without limit to improve transient response. No-Load Stability The MIC5213 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

... 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. MIC5213 1.35 (0.053) 2 ...

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