MIC49150-0.9BMM Micrel Inc, MIC49150-0.9BMM Datasheet

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MIC49150-0.9BMM

Manufacturer Part Number
MIC49150-0.9BMM
Description
IC REG LDO 1.5A 0.9V 8-MSOP
Manufacturer
Micrel Inc
Datasheet

Specifications of MIC49150-0.9BMM

Regulator Topology
Positive Fixed
Voltage - Output
0.9V
Voltage - Input
1.4 ~ 6.5 V
Voltage - Dropout (typical)
0.28V @ 1.5A
Number Of Regulators
1
Current - Output
1.5A
Current - Limit (min)
1.6A
Operating Temperature
-40°C ~ 125°C
Mounting Type
Surface Mount
Package / Case
8-MSOP, Micro8™, 8-uMAX, 8-uSOP,
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
General Description
The MIC49150 is a high-bandwidth, low-dropout, 1.5A volt-
age regulator ideal for powering core voltages of low-
power microprocessors. The MIC49150 implements a dual
supply
impedance and very fast transient response.
The MIC49150 requires a bias input supply and a main
input supply, allowing for ultra-low input voltages on the
main supply rail. The input supply operates from 1.4V to
6.5V and the bias supply requires between 3V and 6.5V
for proper operation. The MIC49150 offers fixed output
voltages from 0.9V to 1.8V and adjustable output voltages
down to 0.9V.
The MIC49150 requires a minimum of output capacitance
for stability, working optimally with small ceramic
capacitors.
The MIC49150 is available in an 8-pin power MSOP pack-
age and a 5-pin S-Pak. Its operating temperature range is
–40°C to +125°C.
Data sheets and support documentation can be found on
Micrel’s web site at www.micrel.com.
Typical Application
November 2006
V
BIAS
C
Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 (
BIAS
= 3.3V
configuration
Ceramic
C
Ceramic
V
IN
= 1µF
IN
= 1µF
Fast Transient Response Regulator
= 1.8V
Low Voltage,
MIC49150BR
IN
BIAS
allowing
GND
OUT
ADJ
for
R1
R2
very
V
OUT
C
Ceramic
= 1.0V
OUT
low
= 1µF
output
1
Features
• Input Voltage Range:
• Stable with 1µF ceramic capacitor
• ±1% initial tolerance
• Maximum dropout voltage (V
• Adjustable output voltage down to 0.9V
• Ultra fast transient response (Up to 10MHz bandwidth)
• Excellent line and load regulation specifications
• Logic controlled shutdown option
• Thermal shutdown and current limit protection
• Power MSOP-8 and S-Pak packages
• Junction temperature range: –40°C to 125°C
Applications
• Graphics processors
• PC add-in cards
• Microprocessor core voltage supply
• Low voltage digital ICs
• High efficiency linear power supplies
• SMPS post regulators
408
over temperature
) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com
1.5A Low Voltage LDO Regulator
V
V
IN
BIAS
: 1.4V to 6.5V
: 3.0V to 6.5V
w/Dual Input Voltages
MIC49150
IN
–V
OUT
) of 500mV
M9999-111306

Related parts for MIC49150-0.9BMM

MIC49150-0.9BMM Summary of contents

Page 1

... The MIC49150 requires a bias input supply and a main input supply, allowing for ultra-low input voltages on the main supply rail. The input supply operates from 1.4V to 6.5V and the bias supply requires between 3V and 6.5V for proper operation. The MIC49150 offers fi ...

Page 2

... Micrel, Inc. Ordering Information Part Number Standard RoHS Compliant MIC49150-0.9BMM MIC49150-0.9YMM MIC49150-1.2BMM MIC49150-1.2YMM MIC49150-1.5BMM MIC49150-1.5YMM MIC49150-1.8BMM MIC49150-1.8YMM MIC49150BMM MIC49150YMM MIC49150-0.9BR MIC49150-0.9WR* MIC49150-1.2BR MIC49150-1.2WR* MIC49150-1.5BR MIC49150-1.5WR* MIC49150-1.8BR MIC49150-1.8WR* MIC49150BR MIC49150WR* * RoHS Compliant with ‘high-melting solder’ exemption. Pin Configuration 1 EN/ADJ. VBIAS 2 3 VIN ...

Page 3

... JC < +125°C, unless noted J Min Typ –1 –2 –0.1 0.01 0.2 130 280 1 1.6 2.3 1.6 0.1 0.891 0.9 0.882 input. MIC49150 ≤ +125°C J (5) . Max Units + +0.1 %/ 1.5 % 200 mV 300 mV 400 mV 500 ...

Page 4

... BIAS VOLTAGE (V) Maximum Bias Current vs. Temperature 300 250 200 BIAS 150 ADJ V = 2.5V IN 100 50 0 -40 - 100 120 TEMPERATURE( °C) 4 MIC49150 Dropout Voltage (Input Suppl ) 300 250 200 150 100 BIAS V = 1.0V OUT 0 OUTPUT CURRENT (mA) Dropout Voltage vs. Temperature (Bias Supply) 2.0 1.8 1.6 1 ...

Page 5

... INPUT VOLTAGE (V) Short Circuit Current vs. Temperature 3.0 2.5 2.0 1.5 1 BIAS V = 2.5V 0 OUT 0 -40 - 100 120 TEMPERATURE (°C) 5 MIC49150 Bias Current vs. Bias Voltage 14 I BIAS 100mA OUT 2. 1.5V OUT 0 3 3.5 4 4.5 5 5.5 6 6.5 ...

Page 6

... Micrel, Inc. Typical Characteristics (cont.) Enable Threshold vs. Temperature 1.6 ON 1.4 1.2 1.0 OFF 0.8 0.6 0 BIAS 0 2. -40 - 100 120 TEMPERATURE (°C) November 2006 6 MIC49150 M9999-111306 ...

Page 7

... Micrel, Inc. Functional Characteristics November 2006 7 MIC49150 M9999-111306 ...

Page 8

... Micrel, Inc. Functional Diagram V / Fixed EN ADJ Adj. November 2006 Enable Bandgap 8 Ilimit V Open IN R1 Circuit Fixed R2 MIC49150 V BIAS OUT M9999-111306 ...

Page 9

... The MIC49150 requires a minimum of output capaci- tance to maintain stability. However, proper capacitor selection is important to ensure desired transient response. The MIC49150 is specifically designed to be stable with virtually any capacitance value and ESR. A 1µF ceramic chip capacitor should satisfy most app- lications. Output capacitance can be increased without bound. See “ ...

Page 10

... Power MSOP-8 Thermal Characteristics One of the secrets of the MIC49150’s performance is its power MSOP-8 package featuring half the thermal resistance of a standard MSOP-8 package. Lower thermal resistance means more output current or higher input voltage for a given package size ...

Page 11

... I OUT Where V Enable The fixed output voltage versions of the MIC49150 feature an active high enable input (EN) that allows on- off control of the regulator. Current drain reduces to “zero” when the device is shutdown, with only microamperes of leakage current. The EN input has TTL/CMOS compatible thresholds for simple logic interfacing ...

Page 12

... Micrel, Inc. Package Information November 2006 8-Pin MSOP (MM) 5-Pin S-Pak (R) 12 MIC49150 M9999-111306 ...

Page 13

... A Purchaser’s use or sale of Micrel Products for use in life support appliances, devices or systems is a Purchaser’s own risk and Purchaser agrees to fully November 2006 indemnify Micrel for any damages resulting from such use or sale. © 2003 Micrel, Incorporated. 13 MIC49150 M9999-111306 ...

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