Datasheet LTM8033 (Analog Devices)
| 制造商 | Analog Devices |
| 描述 | Ultralow Noise EMC 36VIN, 3A DC/DC μModule Regulator |
| 页数 / 页 | 26 / 1 — FEATURES. DESCRIPTION. Complete Step-Down Switch Mode Power Supply. Wide … |
| 文件格式/大小 | PDF / 386 Kb |
| 文件语言 | 英语 |
FEATURES. DESCRIPTION. Complete Step-Down Switch Mode Power Supply. Wide Input Voltage Range: 3.6V to 36V. 3A Output Current
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LTM8033 Ultralow Noise EMC 36VIN, 3A DC/DC µModule Regulator
FEATURES DESCRIPTION
n
Complete Step-Down Switch Mode Power Supply
The LTM®8033 is an electromagnetic compatible (EMC) n
Wide Input Voltage Range: 3.6V to 36V
36V, 3A DC/DC μModule® buck converter designed to n
3A Output Current
meet the radiated emissions requirements of EN55022. n
0.8V to 24V Output Voltage
Conducted emission requirements can be met by adding n
EN55022 Class B Compliant
standard filter components. Included in the package are the n Current Share Multiple LTM8033 Regulators for switching controller, power switches, inductor, filters and More Than 3A Output all support components. Operating over an input voltage n Selectable Switching Frequency: 200kHz to 2.4MHz range of 3.6V to 36V, the LTM8033 supports an output n Current Mode Control voltage range of 0.8V to 24V, and a switching frequency n SnPb or RoHS Compliant Finish range of 200kHz to 2.4MHz, each set by a single resistor. n Programmable Soft-Start Only the bulk input and output filter capacitors are needed n Compact Package (11.25mm × 15mm × 4.32mm) to finish the design. Surface Mount LGA and (11.25mm × 15mm × The LTM8033 is packaged in a compact (11.25mm × 15mm 4.92mm) BGA Packages × 4.32mm) overmolded land grid array (LGA) and ball grid array (BGA) package suitable for automated assembly by
APPLICATIONS
standard surface mount equipment. The LTM8033 is avail- able with SnPb (BGA) or RoHS compliant terminal finish. n Automotive Battery Regulation L, LT, LTC, LTM, Linear Technology, the Linear logo, µModule and Burst Mode are registered n Power for Portable Products trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners. n Distributed Supply Regulation n Industrial Supplies n Wall Transformer Regulation
TYPICAL APPLICATION Ultralow Noise 12V/3A DC/DC µModule Regulator EMI Performance
80 LTM8033 70 VIN* V V IN OUT V 20V TO 36V OUT 12V 60 2.2µF RUN/SS 3A AUX 50 FIN BIAS 40 1µF SHARE PGOOD 30 47µF 20 RT SYNC GND ADJ 10 0 41.2k 34.8k 30 226.2 422.4 618.6 814.8 1010 128.1 324.3 520.5 716.7 912.9 FREQUENCY (MHz) 8033 TA01b f = 850kHz 8033 TA01a * RUNNING VOLTAGE RANGE. PLEASE REFER TO THE APPLICATIONS INFORMATION SECTION FOR START-UP DETAILS. 8033fb For more information www.linear.com/LTM8033 1 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Typical Applications Package Description Package Photographs Revision History Typical Application Related Parts
FEATURES DESCRIPTION
n
Complete Step-Down Switch Mode Power Supply
The LTM®8033 is an electromagnetic compatible (EMC) n
Wide Input Voltage Range: 3.6V to 36V
36V, 3A DC/DC μModule® buck converter designed to n
3A Output Current
meet the radiated emissions requirements of EN55022. n
0.8V to 24V Output Voltage
Conducted emission requirements can be met by adding n
EN55022 Class B Compliant
standard filter components. Included in the package are the n Current Share Multiple LTM8033 Regulators for switching controller, power switches, inductor, filters and More Than 3A Output all support components. Operating over an input voltage n Selectable Switching Frequency: 200kHz to 2.4MHz range of 3.6V to 36V, the LTM8033 supports an output n Current Mode Control voltage range of 0.8V to 24V, and a switching frequency n SnPb or RoHS Compliant Finish range of 200kHz to 2.4MHz, each set by a single resistor. n Programmable Soft-Start Only the bulk input and output filter capacitors are needed n Compact Package (11.25mm × 15mm × 4.32mm) to finish the design. Surface Mount LGA and (11.25mm × 15mm × The LTM8033 is packaged in a compact (11.25mm × 15mm 4.92mm) BGA Packages × 4.32mm) overmolded land grid array (LGA) and ball grid array (BGA) package suitable for automated assembly by
APPLICATIONS
standard surface mount equipment. The LTM8033 is avail- able with SnPb (BGA) or RoHS compliant terminal finish. n Automotive Battery Regulation L, LT, LTC, LTM, Linear Technology, the Linear logo, µModule and Burst Mode are registered n Power for Portable Products trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners. n Distributed Supply Regulation n Industrial Supplies n Wall Transformer Regulation
TYPICAL APPLICATION Ultralow Noise 12V/3A DC/DC µModule Regulator EMI Performance
80 LTM8033 70 VIN* V V IN OUT V 20V TO 36V OUT 12V 60 2.2µF RUN/SS 3A AUX 50 FIN BIAS 40 1µF SHARE PGOOD 30 47µF 20 RT SYNC GND ADJ 10 0 41.2k 34.8k 30 226.2 422.4 618.6 814.8 1010 128.1 324.3 520.5 716.7 912.9 FREQUENCY (MHz) 8033 TA01b f = 850kHz 8033 TA01a * RUNNING VOLTAGE RANGE. PLEASE REFER TO THE APPLICATIONS INFORMATION SECTION FOR START-UP DETAILS. 8033fb For more information www.linear.com/LTM8033 1 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Typical Applications Package Description Package Photographs Revision History Typical Application Related Parts