mic33153yhj Micrel Semiconductor, mic33153yhj Datasheet

mic33153yhj

Manufacturer Part Number

mic33153yhj

Description

4mhz Pwm 1.2a Internal Inductor Buck Regulator With Hyperlight Load And Power Good

Manufacturer

Micrel Semiconductor

Datasheet

1.MIC33153YHJ.pdf (17 pages)

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Company:

H&T Electronics

Part Number:

mic33153yhj-TR

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2 500

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General Description

The

synchronous buck regulator with an internal inductor,

HyperLight Load™ mode, Power Good (PG) output

indicator, and programmable soft start. HyperLight Load™

provides very high efficiency at light loads and ultra-fast

transient response which makes the MIC33153 perfectly

suited for supplying processor core voltages. An additional

benefit of this proprietary architecture is very low output

ripple voltage throughout the entire load range with the use

of small output capacitors.

The MIC33153 is designed so that only two external

capacitors as small as 2.2µF are needed for stability. This

gives the MIC33153 the ease of use of an LDO with the

efficiency of a HyperLight Load™ DC converter. The

MIC33153 achieves efficiency in HyperLight Load

as high as 85% at 1mA, with a very low quiescent current

of 22µA. At higher loads, the MIC33153 provides a

constant switching frequency up to 4MHz.

The MIC33153 is available in 14-pin 3.0mm x 3.5mm

MLF

range from –40°C to +125°C.

Datasheets and support documentation can be found on

Micrel’s web site at: www.micrel.com.

____________________________________________________________________________________________________________

Typical Application

HyperLight Load is a trademark of Micrel, Inc.

MLF and MicroLeadFrame are registered trademark Amkor Technology Inc.

September 2010

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

MIC33153

package with an operating junction temperature

Fixed Output Voltage

high-efficiency

4MHz

mode

1.2A

408

Features

• Internal inductor

• Input voltage: 2.7V to 5.5V

• Output voltage: fixed or adjustable (0.62V to 3.6V)

• Up to 1.2 A output current

• Up to 93% peak efficiency

• 85% typical efficiency at 1mA

• Power Good (PG) output

• Programmable soft start

• 22µA typical quiescent current

• 4MHz PWM operation in continuous mode

• Ultra-fast transient response

• Low ripple output voltage

• 0.01µA shutdown current

• Thermal shutdown and current limit protection

• 14-pin 3.0 x 3.5 x 1.1mm MLF

• –40°C to +125°C junction temperature range

Applications

• Solid State Drives (SSD)

• Mobile handsets

• Portable media/MP3 players

• Portable navigation devices (GPS)

• WiFi/WiMax/WiBro modules

• Wireless LAN cards

• Portable applications

Buck Regulator with HyperLight Load™

− Simplifies design to two external capacitors

− 35mVpp ripple in HyperLight Load

− 7mV output voltage ripple in full PWM mode

) 944-01200 • fax + 1 (408) 474-1000 •

4MHz PWM 1.2A Internal Inductor

Adjustable Output Voltage

and Power Good

MIC33153

package

http://www.micrel.com

™

mode

M9999-092910-A

Related parts for mic33153yhj

mic33153yhj Summary of contents

Page 1

... The MIC33153 is available in 14-pin 3.0mm x 3.5mm ® MLF package with an operating junction temperature range from –40°C to +125°C. Datasheets and support documentation can be found on Micrel’s web site at: www.micrel.com. ____________________________________________________________________________________________________________ Typical Application Fixed Output Voltage HyperLight Load is a trademark of Micrel, Inc. ...

Page 2

... Micrel Inc. Ordering Information 1 Part Number Marking Code −4 MIC33153-4YHJ 33153 MIC MIC33153YHJ 33153 Notes: 1. Other options available (1V - 3.3V). Contact Micrel Marketing for details. ® 2. MLF is GREEN RoHS compliant package. Lead finish is NiPdAu. Mold compound is Halogen Free. Pin Configuration 14- Pin 3.0mm x 3.5mm MLF ...

Page 3

Micrel Inc. Absolute Maximum Ratings ) .......................................... −0. Supply Voltage (V IN Sense Voltage (V ) ........................................−0. SNS Output Switch Voltage (V ) .............................−0. Enable Input Voltage (V )................................−0. Power ...

Page 4

Micrel Inc. Typical Characteristics Efficiency (V = 3.3V) OUT 100 4.7µF OUT 100 1000 ...

Page 5

Micrel Inc. Typical Characteristics Feedback Voltage vs. Temperature 0.65 0.64 0.63 0.62 0.61 0. 3.6V IN 0.59 -40 - 100 120 TEMPERATURE (°C) Enable Voltage vs. Input Voltage 2 1.8 1.6 1.4 Enable ...

Page 6

Micrel Inc. Functional Characteristics September 2010 6 MIC33153 M9999-092910-A ...

Page 7

Micrel Inc. Functional Characteristics (Continued) September 2010 7 MIC33153 M9999-092910-A ...

Page 8

Micrel Inc. Functional Characteristics (Continued) September 2010 8 MIC33153 M9999-092910-A ...

Page 9

Micrel Inc. Functional Diagram Figure 1. Simplified MIC33153 Functional Block Diagram – Fixed Output Voltage Figure 2. Simplified MIC33153 Functional Block Diagram – Adjustable Output Voltage September 2010 9 MIC33153 M9999-092910-A ...

Page 10

Micrel Inc. Functional Description VIN The input supply (VIN) provides power to the internal MOSFETs for the switch mode regulator along with the internal control circuitry. The VIN operating range is 2. input capacitor, with a ...

Page 11

Micrel Inc. Application Information The MIC33153 is a high performance DC-to-DC step down regulator offering a small solution size. With the HyperLight Load™ switching scheme, the MIC33153 is able to maintain high efficiency throughout the entire load range while providing ...

Page 12

Micrel Inc. Over 100mA, efficiency loss is dominated by MOSFET R and inductor losses. Higher input supply voltages DSON will increase the gate to source threshold on the internal MOSFETs, thereby reducing the internal R improves efficiency by reducing DC ...

Page 13

Micrel Inc. Power Dissipation Considerations As with all power devices, the ultimate current rating of the output is limited by the thermal properties of the package and the PCB it is mounted on. There is a simple, Ohm’s law type ...

Page 14

Micrel Inc. Typical Application Circuit (Fixed Output) Bill of Materials Item Part Number C1608X5R0J475K C1, C2 GRM188R60J475KE19D C3 C1608NPO0J471K R3, R4 CRCW06031002FKEA U1 MIC33153-xYHJ Notes: 1. TDK: www.tdk.com. 2. Murata: www.murata.com. 3. Vishay: www.vishay.com. 4. Micrel, Inc.: www.micrel.com. September 2010 ...

Page 15

Micrel Inc. Typical Application Circuit (Adjustable Output) Bill of Materials Item Part Number C1608X5R0J475K C1, C2 GRM188R60J475KE19D C3 C1608NPO0J471K − CRCW06033013FKEA R2 CRCW06031583FKEA R3, R4 CRCW06031002FKEA U1 MIC33153-YHJ 1. TDK: www.tdk.com. 2. Murata : www.murata.com. 3. Vishay: www.vishay.com. ...

Page 16

Micrel Inc. PCB Layout Recommendations September 2010 Top Layer Bottom Layer 16 MIC33153 M9999-092910-A ...

Page 17

Micrel Inc. Package Information MICREL, INC. 2180 FORTUNE DRIVE SAN JOSE, CA 95131 USA TEL +1 (408) 944-0800 FAX +1 (408) 474-1000 WEB Micrel makes no representations or warranties with respect to the accuracy or completeness of the information furnished ...

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