MIC23150-GYMT TR Micrel Inc, MIC23150-GYMT TR Datasheet

2.0A 4MHz HyperLight LoadT Buck Regulator

MIC23150-GYMT TR

Manufacturer Part Number
MIC23150-GYMT TR
Description
2.0A 4MHz HyperLight LoadT Buck Regulator
Manufacturer
Micrel Inc
Series
HyperLight Load™r
Type
Step-Down (Buck)r
Datasheet

Specifications of MIC23150-GYMT TR

Internal Switch(s)
Yes
Synchronous Rectifier
Yes
Number Of Outputs
1
Voltage - Output
1.8V
Current - Output
2A
Frequency - Switching
4MHz
Voltage - Input
2.7 ~ 5.5 V
Operating Temperature
-40°C ~ 125°C
Mounting Type
Surface Mount
Package / Case
8-MLF®, QFN
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Power - Output
-
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
576-3303-2
General Description
The MIC23150 is a high efficiency 4MHz 2A synchronous
buck regulator with HyperLight Load™ mode. HyperLight
Load™ provides very high efficiency at light loads and
ultra-fast transient response which is 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 tiny 2mm x 2mm Thin MLF
package saves precious board space and requires only
three external components.
The MIC23150 is designed for use with a very small
inductor, down to 0.47µH, and an output capacitor as small
as 2.2 µF that enables a total solution size, less than 1mm
height.
The MIC23150 has a very low quiescent current of 23µA
and achieves a peak efficiency of 93% in continuous
conduction mode. In discontinuous conduction mode, the
MIC23150 can achieve 87% efficiency at 1mA.
The MIC23150 is available in 8-pin 2mm x 2mm Thin
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.
October 2009
®
VIN
EN
GND
package with an operating junction temperature
Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 (
C1
VIN
EN
AGND
U1 MIC23150
2mm×2mm
ThinMLF
PGND
SNS
SW
L1
®
Features
• Input voltage: 2.7V to 5.5V
• 2A output current
• Up to 93% peak efficiency
• 87% typical efficiency at 1mA
• 23µA typical quiescent current
• 4MHz PWM operation in continuous mode
• Ultra fast transient response
• Low ripple output voltage
• Fully integrated MOSFET switches
• 0.01µA shutdown current
• Thermal shutdown and current limit protection
• Output Voltage as low as 0.95V
• 8-pin 2mm x 2mm Thin MLF
• –40°C to +125°C junction temperature range
Applications
• Mobile handsets
• Portable media/MP3 players
• Portable navigation devices (GPS)
• WiFi/WiMax/WiBro modules
• Solid State Drives/Memory
• Wireless LAN cards
• Portable applications
408
VOUT
− 14mVpp ripple in HyperLight Load
− 5mV output voltage ripple in full PWM mode
GND
) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com
C2
4MHz PWM 2A Buck Regulator with
HyperLight Load™
MIC23150
100
90
80
70
60
50
40
1
V IN = 2.7V
®
OUTPUT CURRENT (mA)
10
V
Efficiency
OUT
V
IN
100
L = 1.0µH
C
HyperLight Load™
= 3.0V V
OUT
= 1.8V
mode
M9999-102309-B
= 4.7µF
1000
IN
= 3.6V
10000

Related parts for MIC23150-GYMT TR

MIC23150-GYMT TR Summary of contents

Page 1

... The MIC23150 has a very low quiescent current of 23µA and achieves a peak efficiency of 93% in continuous conduction mode. In discontinuous conduction mode, the MIC23150 can achieve 87% efficiency at 1mA. ...

Page 2

... Code MIC23150-CYMT QKC MIC23150-4YMT QK4 MIC23150-55YMT QKZ MIC23150-GYMT QKG MIC23150-SYMT QKS Notes: 1. Other options available (0.95V - 3.6V). Contact Micrel Marketing for details. ® 2. Thin MLF is GREEN RoHS compliant package. Lead finish is NiPdAu. Mold compound is Halogen Free. ® 3. Thin MLF ▲ = Pin 1 identifier. ...

Page 3

... LOAD 0.3 = 20mA LOAD < 2.5V OUTNOM 0.75 ≥ 2.5V OUTNOM 0.150 0.110 4 115 0.8 0.5 0.1 160 20 MIC23150 IN ≤ +125°C J Max Units V 5.5 V 2.65 mV µA 40 µ +2.5 A %/V %/A Ω MHz µs V 1.2 µA 2 ° ...

Page 4

... OUTPUT CURRENT (mA) Output Voltage vs. Temperature 1.85 1.84 1.83 1.82 1.81 1.80 1.79 1.78 L =1.0µH 1. 4.7µF OUT 1.76 LOAD = 120mA 1.75 TEMPERATURE (°C) 4 MIC23150 Efficiency with Various Inductors 100 1.0µ 0.68µ 1.5µ 2.2µ 3. 1.8V OUT ...

Page 5

... Micrel Inc. Functional Characteristics October 2009 5 MIC23150 M9999-102309-B ...

Page 6

... Micrel Inc. October 2009 6 MIC23150 M9999-102309-B ...

Page 7

... Micrel Inc. Functional Characteristics (cont.) October 2009 7 MIC23150 M9999-102309-B ...

Page 8

... Micrel Inc. Functional Characteristics (cont.) October 2009 8 MIC23150 M9999-102309-B ...

Page 9

... Micrel Inc. Functional Diagram EN UVLO Reference COMPARATOR October 2009 CONTROL LOGIC Timer & Softstart Current ERROR ZERO 1 Figure 1. Simplified MIC23150 Functional Block Diagram 9 VIN Gate Drive Limit ISENSE AGND MIC23150 SW PGND SNS M9999-102309-B ...

Page 10

... A logic high signal on the enable pin activates the output voltage of the device. A logic low signal on the enable pin deactivates the output and reduces supply current to 0.01µA. MIC23150 features built-in soft-start circuitry that reduces in-rush current and prevents the output voltage from overshooting at start up. Do not leave the EN pin floating ...

Page 11

... DCR can represent a temperature rating significant efficiency loss. Refer to the Efficiency Considerations. Compensation The MIC23150 is designed to be stable with a 0.47µH to 2.2µH inductor with a minimum of 2.2µF ceramic (X5R) output capacitor. Duty Cycle The typical maximum duty cycle of the MIC23150 is 80%. ...

Page 12

... As the load current increases, the MIC23150 goes into continuous conduction mode (CCM) and switches at a frequency centered at 4MHz. The equation to calculate the load when the MIC23150 goes into continuous conduction mode may be approximated by the following formula: As shown in the previous equation, the load at which MIC23150 transitions from HyperLight Load™ ...

Page 13

... Micrel Inc. MIC23150 Typical Application Circuit VIN EN GND Bill of Materials Item Part Number C1, C2 C1608X5R0J475K VLS3010T-1R0N1R9 L1 VLS4012T-1R0N1R6 DO2010-102ML U1 MIC23150-xYMT Notes: 1. TDK: www.tdk.com 2. Coilcraft: www.coilcraft.com 3. Micrel, Inc.: www.micrel.com October 2009 U1 MIC23150 VIN SW C1 2mm×2mm ThinMLF SNS EN AGND PGND Manufacturer Description (1) TDK 4.7µ ...

Page 14

... Micrel Inc. PCB Layout Recommendations October 2009 Thin MILF Top Layer Thin MLF Bottom Layer 14 MIC23150 M9999-102309-B ...

Page 15

... 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 indemnify Micrel for any damages resulting from such use or sale. October 2009 8-Pin 2mm x 2mm Thin MLF 15 © 2008 Micrel, Incorporated. MIC23150 M9999-102309-B ...

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