Datasheet LTM8003 (Analog Devices)
| 制造商 | Analog Devices |
| 描述 | 40VIN, 3.5A Step-Down Silent Switcher μModule Regulator |
| 页数 / 页 | 30 / 1 — FEATURES. DESCRIPTION. Complete Step-Down Switch Mode Power Supply. Low … |
| 修订版 | E |
| 文件格式/大小 | PDF / 2.6 Mb |
| 文件语言 | 英语 |
FEATURES. DESCRIPTION. Complete Step-Down Switch Mode Power Supply. Low Noise Silent Switcher. Architecture
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LTM8003 40VIN, 3.5A Step-Down Silent Switcher µModule Regulator
FEATURES DESCRIPTION
n
Complete Step-Down Switch Mode Power Supply
The LTM®8003 is a 40VIN, 6A peak, 3.5A continuous n
Low Noise Silent Switcher
®
Architecture
step-down Silent Switcher µModule® (power module) n
Wide Input Voltage Range: 3.4V to 40V
regulator. The Silent Switcher architecture minimizes EMI n
Wide Output Voltage Range: 0.97V to 18V
while delivering high efficiency at frequencies up to 3MHz. n
Wide Temperature Range: –40°C to 150°C (H-Grade)
Included in the package are the switching controller, power n
3.5A Continuous Output Current, 6A peak
switches, inductor, and all support components. Operating n
FMEA Compliant Pinout (LTM8003-3.3)
over an input voltage range of 3.4V to 40V, the LTM8003
Output Stays at or Below Regulation Voltage During
supports an output voltage range of 0.97V to 18V and a
Adjacent Pin Short or if a Pin Is Left Floating
switching frequency range of 200kHz to 3MHz, each set by n CISPR25 Class 5 Compliant a single resistor. Only the input and output filter capacitors n Selectable Switching Frequency: 200kHz to 3MHz are needed to finish the design. n External Synchronization The low profile package enables utilization of unused n Low Quiescent Current: 25µA (5VOUT) space on the bottom of PC boards for high density point of n Tiny, Low Profile 6.25mm × 9mm × 3.32mm RoHS load regulation. The LTM8003 is packaged in a thermally Compliant BGA Package enhanced, compact over-molded ball grid array (BGA) pack- age suitable for automated assembly by standard surface mount equipment. The LTM8003 is RoHS compliant.
APPLICATIONS
All registered trademarks and trademarks are the property of their respective owners. n Automotive Battery Regulation n Power for Portable Products n Distributed Supply Regulation n Industrial Supplies n Wall Transformer Regulation
TYPICAL APPLICATION Efficiency, VOUT = 5V 5VOUT from 7VIN to 40VIN Step-Down Converter
95 12VIN V V IN LTM8003 IN 7V TO 40V RUN 85 4.7µF V V OUT OUT 5V 3.5A BIAS RT 6A PEAK 75 41.2k 24.3k 47µF 1MHz GND SYNC FB EFFICIENCY (%) 8003 TA01a 65 PINS NOT USED IN THIS CIRCUIT: TR/SS, PG 55 0 1 2 3 4 LOAD CURRENT (A) 8003 TA01 Rev E Document Feedback For more information www.analog.com 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 Photo Package Description Revision History Typical Application Design Resources Related Parts
FEATURES DESCRIPTION
n
Complete Step-Down Switch Mode Power Supply
The LTM®8003 is a 40VIN, 6A peak, 3.5A continuous n
Low Noise Silent Switcher
®
Architecture
step-down Silent Switcher µModule® (power module) n
Wide Input Voltage Range: 3.4V to 40V
regulator. The Silent Switcher architecture minimizes EMI n
Wide Output Voltage Range: 0.97V to 18V
while delivering high efficiency at frequencies up to 3MHz. n
Wide Temperature Range: –40°C to 150°C (H-Grade)
Included in the package are the switching controller, power n
3.5A Continuous Output Current, 6A peak
switches, inductor, and all support components. Operating n
FMEA Compliant Pinout (LTM8003-3.3)
over an input voltage range of 3.4V to 40V, the LTM8003
Output Stays at or Below Regulation Voltage During
supports an output voltage range of 0.97V to 18V and a
Adjacent Pin Short or if a Pin Is Left Floating
switching frequency range of 200kHz to 3MHz, each set by n CISPR25 Class 5 Compliant a single resistor. Only the input and output filter capacitors n Selectable Switching Frequency: 200kHz to 3MHz are needed to finish the design. n External Synchronization The low profile package enables utilization of unused n Low Quiescent Current: 25µA (5VOUT) space on the bottom of PC boards for high density point of n Tiny, Low Profile 6.25mm × 9mm × 3.32mm RoHS load regulation. The LTM8003 is packaged in a thermally Compliant BGA Package enhanced, compact over-molded ball grid array (BGA) pack- age suitable for automated assembly by standard surface mount equipment. The LTM8003 is RoHS compliant.
APPLICATIONS
All registered trademarks and trademarks are the property of their respective owners. n Automotive Battery Regulation n Power for Portable Products n Distributed Supply Regulation n Industrial Supplies n Wall Transformer Regulation
TYPICAL APPLICATION Efficiency, VOUT = 5V 5VOUT from 7VIN to 40VIN Step-Down Converter
95 12VIN V V IN LTM8003 IN 7V TO 40V RUN 85 4.7µF V V OUT OUT 5V 3.5A BIAS RT 6A PEAK 75 41.2k 24.3k 47µF 1MHz GND SYNC FB EFFICIENCY (%) 8003 TA01a 65 PINS NOT USED IN THIS CIRCUIT: TR/SS, PG 55 0 1 2 3 4 LOAD CURRENT (A) 8003 TA01 Rev E Document Feedback For more information www.analog.com 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 Photo Package Description Revision History Typical Application Design Resources Related Parts