MIC49150WR Micrel Inc, MIC49150WR Datasheet

MIC49150WR

Manufacturer Part Number

MIC49150WR

Description

IC REG LDO 1.5A ADJ 5SPAK

Manufacturer

Micrel Inc

Datasheet

1.MIC49150YMM.pdf (13 pages)

Specifications of MIC49150WR

Output Current

1.5A

Regulator Topology

Positive Adjustable

Voltage - Output

0.9 ~ 5 V

Voltage - Input

1.4 ~ 6.5 V

Voltage - Dropout (typical)

0.28V @ 1.5A

Number Of Regulators

Current - Output

1.5A

Current - Limit (min)

1.6A

Operating Temperature

-40°C ~ 125°C

Mounting Type

Surface Mount

Package / Case

SPAK-5

Primary Input Voltage

Output Voltage Adjustable Range

0.9V To 5V

Output Voltage Fixed

1.8V

Dropout Voltage Vdo

280mV

No. Of Pins

Voltage Regulator Type

Linear

Topology

LDO

Regulator Output Type

Adjustable

Polarity Type

Positive

Number Of Outputs

Single

Input Voltage (min)

1.4V

Input Voltage (max)

6.5V

Output Voltage

0.9 to 5V

Package Type

SPAK

Load Regulation

Line Regulation

0.01%/V

Output Voltage Accuracy

±1%

Operating Temp Range

-40C to 125C

Operating Temperature Classification

Automotive

Dropout Voltage@current (max)

0.2@750mA/0.4@1.5A

Dropout Voltage@current (typ)

0.13@750mA/0.28@1.5A

Pin Count

5 +Tab

Mounting

Surface Mount

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

Other names

576-1227

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Company

Part Number

Manufacturer

Quantity

Price

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Part Number:

MIC49150WRTR

Manufacturer:

MICREL

Quantity:

5 186

Current page: 1 of 13
Download datasheet (340Kb)

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

BIAS

Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 (

BIAS

= 3.3V

conﬁguration

Ceramic

= 1µF

Fast Transient Response Regulator

= 1.8V

Low Voltage,

MIC49150BR

BIAS

allowing

GND

OUT

ADJ

for

very

OUT

Ceramic

= 1.0V

OUT

low

= 1µF

output

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

BIAS

: 1.4V to 6.5V

: 3.0V to 6.5V

w/Dual Input Voltages

MIC49150

–V

OUT

) of 500mV

M9999-111306

Related parts for MIC49150WR

MIC49150WR Summary of contents

Page 1

... BIAS GND Ceramic C = 1µF IN Ceramic Low Voltage, Fast Transient Response Regulator Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 ( November 2006 Features • Input Voltage Range: – – for very low output • ...

Page 2

... 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 4 VOUT 8-Pin Power MSPO (MM) Pin Description Pin Number Pin Number 8-MSOP ...

Page 3

Micrel, Inc. Absolute Maximum Ratings Supply Voltage (V ) .........................................................8V IN Bias Supply Voltage (V )..............................................8V BIAS Enable Input Voltage (V )...............................................8V EN Power Dissipation .....................................Internally Limited (3) ESD Rating .................................................................. 4kV Electrical Characteristics T = 25°C with V = ...

Page 4

Micrel, Inc. Typical Characteristics Power Supply Rejection Ratio (Input Suppl ) 3.3V BIAS 1. 1.0V 20 OUT I = 1.5A OUT 1µF ceramic OUT ...

Page 5

Micrel, Inc. Typical Characteristics (cont.) Bias Current vs. Output Current BIAS 1.5V OUT 30 I BIAS OUTPUT CURRENT (mA) Bias Current vs. Bias Voltage 50 I ...

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 ...

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

Micrel, Inc. Application Information The MIC49150 is an ultra-high performance, low-dropout linear regulator designed for high current applications requiring fast transient response. The MIC49150 utilizes two input supplies, signiﬁcantly reducing dropout voltage, perfect for low-voltage, DC-to-DC conversion. The MIC49150 requires ...

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MIC49150WR Micrel Inc, MIC49150WR Datasheet

MIC49150WR

Specifications of MIC49150WR

Available stocks

Related parts for MIC49150WR

MIC49150WR Summary of contents

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