mic33030-jyhj Micrel Semiconductor, mic33030-jyhj Datasheet

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mic33030-jyhj

Manufacturer Part Number
mic33030-jyhj
Description
8mhz 400ma Internal Inductor Buck Regulator With Hyperlight Load Tm
Manufacturer
Micrel Semiconductor
Datasheet
General Description
The MIC33030 is a high-efficiency, 8MHz, 400mA
synchronous buck regulator with an internal inductor and
HyperLight Load™ mode. HyperLight Load™ provides
very-high efficiency at light loads and ultra-fast transient
response that is perfectly suited for supplying processor
core voltages. An additional benefit of this proprietary
architecture
throughout the entire load range with the use of small
output capacitors. The tiny 2.5mm x 2.0mm MLF
saves precious board space and requires only two external
capacitors.
The MIC33030 is designed for use with tiny output
capacitors as small as 2.2µF. This gives the MIC33030 the
ease of use of an LDO with the efficiency of a HyperLight
Load™ DC converter.
The MIC33030 achieves efficiency in HyperLight Load™
mode as high as 78% at 1mA, with a very-low quiescent
current of 21µA. At higher loads, the MIC33030 provides a
constant switching frequency up to 8MHz.
The MIC33030 is available in a 10-pin 2.5mm x 2.0mm
MLF
range of –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.
February 2011
®
Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 (
package with an operating junction temperature
is
Fixed-Output MIC33030
the
very-low
output
ripple
®
package
voltage
Features
• Internal Inductor
• Input voltage: 2.7V to 5.5V
• Output voltage accuracy of ±2.5% over temperature
• 400mA output current
• Efficiency up to 78% at 1mA
• 21µA typical quiescent current
• Up to 8MHz PWM operation in continuous mode
• Ultra-fast transient response
• Low-voltage output ripple
• Fully-integrated MOSFET switches
• 0.01µA shutdown current
• Thermal shutdown and current-limit protection
• Fixed and adjustable output voltage options available
• 2.5mm x 2.0mm 10-Lead MLF
• –40°C to +125°C junction temperature range
Applications
• Mobile handsets
• Portable media/MP3 players
• Portable navigation devices (GPS)
• WiFi/WiMax/WiBro modules
• Digital Cameras
• Wireless LAN cards
• USB-powered devices
• Portable applications
408
− Simplifies design to two external capacitors
− 30mVpp ripple in HyperLight Load
− 7mV output voltage ripple in full PWM mode
(0.7V to 3.6V)
) 944-0800 • fax + 1 (408) 474-1000 •
8MHz 400mA Internal Inductor Buck
Regulator with HyperLight Load™
Adjustable-Output MIC33030
MIC33030
®
http://www.micrel.com
mode
M9999-020311-C

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mic33030-jyhj Summary of contents

Page 1

... The MIC33030 achieves efficiency in HyperLight Load™ mode as high as 78% at 1mA, with a very-low quiescent current of 21µA. At higher loads, the MIC33030 provides a constant switching frequency up to 8MHz. The MIC33030 is available in a 10-pin 2.5mm x 2.0mm ® MLF package with an operating junction temperature range of – ...

Page 2

... Micrel Inc. Ordering Information Marking Part Number Code MIC33030-AYHJ 3GFA MIC33030-JYHJ 3GFJ MIC33030-GYHJ 3GFG MIC33030-4YHJ 3GF4 Notes: 1. Other options available. Contact Micrel for details. ® 2. Thin MLF is GREEN RoHS compliant package. Lead finish is NiPdAu. Mold compound is Halogen Free. Pin Configuration 2.5mm x 2.0mm MLF ...

Page 3

... JA ® 2.5mm x 2.0mm MLF -10 (θ ) .........................45°C/W JC Min. Typ. 2.7 2.55 2.45 100 Nominal 21 0.01 -2.5 0.62 0.7 0.41 = 20mA, 0.5 LOAD = 1.2V, 0.7 0.65 0.8 8 100 0.9 0.5 35 0.1 160 20 MIC33030 IN ≤ +125°C J ≤ +125°C, unless J Max. Units V 5 µA µ +2 %/V % Ω Ω MHz µs V 1.2 mV µA 2 °C °C M9999-020311-C ...

Page 4

... LOAD CURRENT (mA) Output Voltage vs. Input Voltage 1.9 1.875 1.85 1.825 IOUT = 20mA 1.8 1.775 IOUT = 120mA 1.75 1.725 1.7 2.5 3 3.5 4 4 MIC33030 Efficiency vs. Load (V = 1.5V) OUT 90.0% 80.0% VIN = 3V 70.0% VIN = 4.2V 60.0% 50.0% VIN = 3.6V 40.0% 30.0% 20.0% 10.0% 0.0% 0 100 1000 LOAD CURRENT (mA) Quiescent Current vs. Input Voltage (Not Switching ...

Page 5

... TEMPERATURE (°C) 5 Switching Frequency vs. Load Current 10000 1000 100 10 VIN = 120mA 0.1 80 100 120 140 0.01 0.001 0.01 LOAD CURRENT (mA) Current Limit vs. Input Voltage 1 VIN = 4.2V 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0 2.5 3 100 120 140 MIC33030 VIN = 3.6V VIN = 4.2V 0 100 1000 3.5 4 4 (V) IN M9999-020311-C ...

Page 6

... Micrel Inc. Functional Characteristics February 2011 6 MIC33030 M9999-020311-C ...

Page 7

... Micrel Inc. Functional Characteristics (Continued) February 2011 7 MIC33030 M9999-020311-C ...

Page 8

... Micrel Inc. Functional Characteristics (Continued) February 2011 8 MIC33030 M9999-020311-C ...

Page 9

... Micrel Inc. Functional Diagram February 2011 Simplified MIC33030 Fixed Functional Block Diagram Simplified MIC33030 Adjustable Functional Block Diagram 9 MIC33030 M9999-020311-C ...

Page 10

... The other end of the inductor is connected to the load, SNS pin and output capacitor. As the MIC33030 has an internal inductor, this pin is not routed in most applications. VOUT The output pin (VOUT) is the output voltage pin following the internal inductor ...

Page 11

... The Y5V and Z5U temperature rating capacitors are not recommended due to their wide variation in capacitance over temperature and increased resistance at high frequencies. Compensation The MIC33030 is designed to be stable with a minimum of 2.2µF ceramic (X5R) output capacitor. Duty Cycle The typical maximum duty cycle of the MIC33030 is 90%. ...

Page 12

... As the load current increases, the MIC33030 goes into continuous conduction mode (CCM) and switches at a frequency centered at 8MHz. The equation to calculate the load when the MIC33030 goes into continuous conduction mode may be approximated by the following formula: As shown in the above equation, the load at which MIC33030 transitions from HyperLight Load™ ...

Page 13

... Where Rθ of the datasheet. Example: A MIC33030 is intended to drive a 300mA load at 1.8V and is placed on a printed circuit board which has a ground plane area of at least 25mm square. The Voltage source is a Li-ion battery with a lower operating threshold of 3V and the ambient temperature of the ...

Page 14

... Micrel Inc. MIC33030 Typical Application Circuit (Fixed) Bill of Materials Item Part Number C1, C2 C1608X5R0J475K R1 CRCW06031002FKEA U1 MIC33030-xYHJ Notes: 1. TDK: www.tdk.com. 2. Vishay: www.vishay.com. 3. Micrel, Inc.: www.micrel.com. February 2011 Manufacturer (1) TDK 4.7µF Ceramic Capacitor, 6.3V, X5R, Size 0603 (2) Vishay Resistor, 10k, Size 0603 8MHz 400mA Integrated Inductor Buck Regulator with (3) Micrel, Inc ...

Page 15

... Micrel Inc. MIC33030 Typical Application Circuit (Adjustable 1.8V) Bill of Materials Item Part Number C1, C2 C1608X5R0J475K R1 CRCW06031002FT1 R2 CRCW06033013FT1 R3 CRCW06031583FT1 U1 MIC33030-AYHJ Notes: 1. TDK: www.tdk.com. 2. Vishay: www.vishay.com. 3. Micrel, Inc.: www.micrel.com. February 2011 Manufacturer (1) TDK 4.7µF Ceramic Capacitor, 6.3V, X5R, Size 0603 (2) Vishay 10k Ω, 1%, Size 0603 ...

Page 16

... Micrel Inc. PCB Layout Recommendations February 2011 Fixed Top Layer Fixed Bottom Layer 16 MIC33030 M9999-020311-C ...

Page 17

... Micrel Inc. Package Information February 2011 ® 10-Pin (2.5mm x 2.0mm) MLF (HJ) 17 MIC33030 M9999-020311-C ...

Page 18

... 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 February 2011 10-Pin 2.5mm x 2mm MLF indemnify Micrel for any damages resulting from such use or sale. © 2010 Micrel, Incorporated. 18 ® http://www.micrel.com M9999-020311-C MIC33030 nt ...

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