Datasheet LTM8053, LTM8053-1 (Analog Devices)
| 制造商 | Analog Devices |
| 描述 | 40VIN, 3.5A/6A Step-Down Silent Switcher μModule Regulator |
| 页数 / 页 | 28 / 1 — FEATURES. DESCRIPTION. Complete Step-Down Switch Mode Power Supply. Low … |
| 修订版 | D |
| 文件格式/大小 | PDF / 1.4 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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LTM8053/LTM8053-1 40VIN, 3.5A Step-Down Silent Switcher µModule Regulator
FEATURES DESCRIPTION
n
Complete Step-Down Switch Mode Power Supply
The LTM®8053 is a 40VIN, 3.5A continuous, 6A peak step- n
Low Noise Silent Switcher
®
Architecture
down µModule® (power module) regulator. Included in n
Wide Input Voltage Range: 3.4V to 40V
the package are the switching controller, power switches, n
Wide Output Voltage Range: 0.97V to 15V
inductor, and all support components. Operating over an n
3.5A Continuous Output Current at 12VIN, 5VOUT,
input voltage range of 3.4V to 40V, the LTM8053/LTM8053-
TA = 85°C
1 supports an output voltage range of 0.97V to 15V and a n
6A Peak Output Current
switching frequency range of 200kHz to 3MHz, each set n
Parallelable for Increased Output Current
by a single resistor. Only the input and output filter capaci- n Selectable Switching Frequency: 200kHz to 3MHz tors are needed to finish the design. The LTM8053-1 can n Tiny, Low Profile 6.25mm × 9mm × 3.32mm RoHS operate in forced continuous mode. Compliant BGA Package The low profile package enables utilization of unused
APPLICATIONS
space on the bottom of PC boards for high density point of load regulation. The LTM8053/LTM8053-1 is packaged in a thermally enhanced, compact over-molded ball grid n Automotive Battery Regulation array (BGA) package suitable for automated assembly n Power for Portable Products by standard surface mount equipment. The LTM8053/ n Distributed Supply Regulation LTM8053-1 is RoHS compliant. n Industrial Supplies n Wall Transformer Regulation All registered trademarks and trademarks are the property of their respective owners.
TYPICAL APPLICATION 5VOUT from 7VIN to 40VIN Step-Down Converter Efficiency, VOUT = 5V
95 LTM8053 V VIN IN 7V TO 40V BIAS RUN AUX 85 4.7µF V V OUT OUT 5V 3.5A RT 75 100µF 40.2k 60.4k 1MHz FB GND SYNC EFFICIENCY (%) 8053 TA01a 65 PINS NOT USED IN THIS CIRCUIT: TR/SS, PG, SHARE 12VIN 55 0 1 2 3 4 LOAD CURRENT (A) 8053 TA01 Rev D Document Feedback For more information www.analog.com 1 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Pin Configuration Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Applications Information Typical Applications Package Description Package Photos Package Description Revision History Typical Application Related Parts
FEATURES DESCRIPTION
n
Complete Step-Down Switch Mode Power Supply
The LTM®8053 is a 40VIN, 3.5A continuous, 6A peak step- n
Low Noise Silent Switcher
®
Architecture
down µModule® (power module) regulator. Included in n
Wide Input Voltage Range: 3.4V to 40V
the package are the switching controller, power switches, n
Wide Output Voltage Range: 0.97V to 15V
inductor, and all support components. Operating over an n
3.5A Continuous Output Current at 12VIN, 5VOUT,
input voltage range of 3.4V to 40V, the LTM8053/LTM8053-
TA = 85°C
1 supports an output voltage range of 0.97V to 15V and a n
6A Peak Output Current
switching frequency range of 200kHz to 3MHz, each set n
Parallelable for Increased Output Current
by a single resistor. Only the input and output filter capaci- n Selectable Switching Frequency: 200kHz to 3MHz tors are needed to finish the design. The LTM8053-1 can n Tiny, Low Profile 6.25mm × 9mm × 3.32mm RoHS operate in forced continuous mode. Compliant BGA Package The low profile package enables utilization of unused
APPLICATIONS
space on the bottom of PC boards for high density point of load regulation. The LTM8053/LTM8053-1 is packaged in a thermally enhanced, compact over-molded ball grid n Automotive Battery Regulation array (BGA) package suitable for automated assembly n Power for Portable Products by standard surface mount equipment. The LTM8053/ n Distributed Supply Regulation LTM8053-1 is RoHS compliant. n Industrial Supplies n Wall Transformer Regulation All registered trademarks and trademarks are the property of their respective owners.
TYPICAL APPLICATION 5VOUT from 7VIN to 40VIN Step-Down Converter Efficiency, VOUT = 5V
95 LTM8053 V VIN IN 7V TO 40V BIAS RUN AUX 85 4.7µF V V OUT OUT 5V 3.5A RT 75 100µF 40.2k 60.4k 1MHz FB GND SYNC EFFICIENCY (%) 8053 TA01a 65 PINS NOT USED IN THIS CIRCUIT: TR/SS, PG, SHARE 12VIN 55 0 1 2 3 4 LOAD CURRENT (A) 8053 TA01 Rev D Document Feedback For more information www.analog.com 1 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Pin Configuration Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Applications Information Typical Applications Package Description Package Photos Package Description Revision History Typical Application Related Parts