MIC33153YHJ TR Micrel Inc, MIC33153YHJ TR Datasheet

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MIC33153YHJ TR

Manufacturer Part Number
MIC33153YHJ TR
Description
IC BUCK SYNC ADJ 1.2A 14MLF
Manufacturer
Micrel Inc
Series
HyperLight Load™r
Type
Step-Down (Buck), PFM/PWMr
Datasheet

Specifications of MIC33153YHJ TR

Internal Switch(s)
Yes
Synchronous Rectifier
Yes
Number Of Outputs
1
Voltage - Output
0.62 V ~ 3.6 V
Current - Output
1.2A
Frequency - Switching
4MHz
Voltage - Input
2.7 V ~ 5.5 V
Operating Temperature
-40°C ~ 125°C
Mounting Type
Surface Mount
Package / Case
14-VFDFN Exposed Pad, 14-MLF®
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Other names
576-3904-2
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
is
Fixed Output Voltage
a
high-efficiency
4MHz
TM
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 TR

MIC33153YHJ TR Summary of contents

Page 1

... Fixed Output Voltage HyperLight Load is a trademark of Micrel, Inc. MLF and MicroLeadFrame are registered trademark Amkor Technology Inc. Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 ( September 2010 4MHz PWM 1.2A Internal Inductor Buck Regulator with HyperLight Load™ ...

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 Good (PG) Voltage (V ) .......................−0. Storage Temperature Range ..……………−65°C to +150°C Lead Temperature (soldering, 10 sec.)...................... 260°C ...

Page 4

... Micrel Inc. Typical Characteristics Efficiency (V = 3.3V) OUT 100 4.7µF OUT 100 1000 10000 OUTPUT CURRENT (mA) Efficiency (V = 1.5V) OUT 100 4.7µF OUT 100 1000 10000 OUTPUT CURRENT (mA) Current Limit vs. Input Voltage 5.00 4.50 4.00 3.50 3.00 2.50 2 ...

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 ON 1.2 1 0.8 0.6 Enable OFF C = 4.7µF 0.4 OUT I = 150mA 0.2 OUT 0 2.7 3.2 3.7 4 ...

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 minimum voltage rating of 6.3V, is recommended. Due to the high switching speed, a minimum 2.2µ ...

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 ultra-fast load transient response. The following sections provide additional device application information ...

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 losses in the device. All but the inductor losses are inherent to the device. In which case, inductor selection becomes increasingly critical in efficiency calculations ...

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 of relationship between thermal resistance, power dissipation and temperature which is ...

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 Manufacturer Description (1) TDK Ceramic Capacitor, 4.7µF, 6.3V, X5R, Size 0603 ...

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. 4. Micrel, Inc.: www.micrel.com. September 2010 Manufacturer Description (1) TDK Ceramic Capacitor, 4.7µF, 6.3V, X5R, Size 0603 ...

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 in this data sheet. This information is not intended as a warranty and Micrel does not assume responsibility for its use. Micrel reserves the right to change circuitry, specifications and descriptions at any time without notice. No license, whether express, implied, arising by estoppel or otherwise, to any intellectual property rights is granted by this document. Except as provided in Micrel’ ...

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