MIC5212-SJBM Micrel Inc, MIC5212-SJBM Datasheet

IC REG LDO DUAL 500MA 1% 8-SOIC

MIC5212-SJBM

Manufacturer Part Number
MIC5212-SJBM
Description
IC REG LDO DUAL 500MA 1% 8-SOIC
Manufacturer
Micrel Inc
Datasheet

Specifications of MIC5212-SJBM

Regulator Topology
Positive Fixed
Voltage - Output
3.3V, 2.5V
Voltage - Input
2.5 ~ 16 V
Voltage - Dropout (typical)
0.35V @ 500mA
Number Of Regulators
2
Current - Output
500mA
Operating Temperature
-40°C ~ 125°C
Mounting Type
Surface Mount
Package / Case
8-SOIC (3.9mm Width)
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Current - Limit (min)
-

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
MIC5212-SJBM
Manufacturer:
MICREL/麦瑞
Quantity:
20 000
General Description
The MIC5212 is a dual linear voltage regulator with very-low
dropout voltage (typically 10mV at light loads and 350mV at
500mA), very-low ground current (225 A at 10mA output),
and better than 1% initial accuracy.
Both regulator outputs can supply up to 500mA at the same
time as long as each regulator’s maximum junction tempera-
ture is not exceeded.
Key features include current limiting, overtemperature shut-
down, and protection against reversed battery.
The MIC5212 is available in a fixed 3.3V/2.5V output voltage
configuration. Other voltages are available; contact Micrel for
details.
Typical Application
April 2003
MIC5212
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
MIC5212-SJBM
IN = 5V
4.7 F
3.3V/2.5V Dual LDO
MIC5212-SJBM
INA
INB
GND
OUTB
OUTA
3.3V/2.5V
1
Voltage
Features
• Fused lead frame SOIC-8
• Up to 500mA per regulator output
• Low quiescent current
• Low dropout voltage
• Tight load and line regulation
• Low temperature coefficient
• Current and thermal limiting
• Reversed input polarity protection
Applications
• Hard disk drives
• CD R/W
• Bar code scanners
• SMPS post regulator/DC-to-DC modules
• High-efficiency linear power supplies
4.7 F 4.7 F
Accuracy Junction Temp. Range*
1.0%
V
V
Dual 500mA LDO Regulator
O1
O2
= 3.3V
= 2.5V
MIC5212
–40 C to +125 C
Final
8-lead SOIC
Package
MIC5212
Micrel

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MIC5212-SJBM Summary of contents

Page 1

... Bar code scanners • SMPS post regulator/DC-to-DC modules • High-efficiency linear power supplies Ordering Information Part Number Voltage Accuracy Junction Temp. Range* MIC5212-SJBM 3.3V/2.5V Other voltages available. Contact Micrel for details. MIC5212-SJBM INA OUTA INB 4.7 F OUTB GND 4.7 F 4.7 F 3.3V/2.5V Dual LDO ...

Page 2

... MIC5212 Pin Configuration Pin Description Pin Number Pin Name 1 OUTA 2 INA 3 INB 4 OUTB GND MIC5212 SOIC-8 (M) Pin Function Regulator A Output Regulator A Input Regulator B Input Regulator B Output Ground 2 Micrel April 2003 ...

Page 3

... OUT –2 40 0.009 0.05 175 350 1 750 = 2.2 F 500 OUT . The maximum allowable power Exceeding the maximum allowable power dissipa the 8-lead SOIC ( C/W JA Micrel Max Units ppm 0.7 % 1.0 % 275 mV 350 mV 500 mV 600 mV 2 dB5 1000 mA nV/ Hz MIC5212 ...

Page 4

... TEMPERATURE ( C) Ground Current vs. Load 100 200 300 400 500 OUTPUT CURRENT (mA) 4 Micrel MIC5212-2.5 PSRR 150mA Load Tantulum OUT 4. 3.3V 10 OUT OUT 0 10 10k 100 1k 100k 1M FREQUENCY (Hz) S/C Current vs ...

Page 5

... TIME (1ms/div.) Turn-On Response 3.3V, 500mA 2.5V, 200mA TIME (40 s/div.) April 2003 500mA 10mA 10mA 7V 4.3V 10mA 5 Output 2 Load Transient Response 2.5V OUT Ceramic OUT 1000mA 500mA 10mA 10mA TIME (1ms/div.) Line Transient Response 6V 3.5V TIME (1ms/div.) Micrel MIC5212 ...

Page 6

... MIC5212 Functional Diagram MIC5212 6 Micrel April 2003 ...

Page 7

... Power SO-8 Thermal Characteristics One of the secrets of the MIC5212’s performance is its power SO-8 package featuring half the thermal resistance of a standard SO-8 package. Lower thermal resistance means more output current or higher input voltage for a given package size ...

Page 8

... P = 0.919W D From Figure 2, the minimum amount of copper required to operate this application 500mm MIC5212 Quick Method Determine the power dissipation requirements for the design along with the maximum ambient temperature at which the device will be operated. Refer to Figure 3, which shows safe operating curves for three different ambient temperatures and 85 C ...

Page 9

... SEATING PLANE 8-Pin SOIC ( (408) 944-0970 FAX Micrel for any damages resulting from such use or sale. © 2003 Micrel, Incorporated 0.010 (0.25) 0.007 (0.18) 0.050 (1.27) 0.016 (0.40) 0.244 (6.20) 0.228 (5.79) http://www.micrel.com WEB Micrel MIC5212 ...

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