Datasheet LTM8051 (Analog Devices)
| 制造商 | Analog Devices |
| 描述 | Quad 40VIN Silent Switcher μModule Regulator with Configurable 1.2A Output Array |
| 页数 / 页 | 28 / 1 — FEATURES. DESCRIPTION. Four Complete Step-Down Switching Power Supplies. … |
| 文件格式/大小 | PDF / 2.6 Mb |
| 文件语言 | 英语 |
FEATURES. DESCRIPTION. Four Complete Step-Down Switching Power Supplies. Low Noise Silent Switcher® Architecture
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LTM8051 Quad 40VIN Silent Switcher μModule Regulator with Configurable 1.2A Output Array
FEATURES DESCRIPTION
n
Four Complete Step-Down Switching Power Supplies
The LTM®8051 is quad 40VIN, 1.2A step-down Silent n
Low Noise Silent Switcher® Architecture
Switcher μModule® regulator. The Silent Switcher archi- n
CISPR22 Class B Compliant
tecture minimizes EMI while delivering high efficiency at n frequencies up to 3MHz. Included in the package are the
CISPR25 Class 5 Compliant
n controllers, power switches, inductors, and support com-
Wide Input Voltage Range: 3V to 40V
n ponents. Operating over a wide input voltage range, the
Wide Output Voltage Range: 0.8V to 8V
LTM8051 supports output voltages from 0.8V to 8V, and n
1.2A Continuous Output Current per Channel at
a switching frequency range of 300kHz to 3MHz, each set
12VIN, 3.3VOUT, TA = 85°C
by a single resistor. Only the bulk input and output filter n
1.5A Continuous Output Current per Channel at
capacitors are needed to finish the design. The LTM8051
12VIN, 3.3VOUT, TA = 60°C
product video is available on website. n
Multiphase or Multi-µModule Parallelable for
The LTM8051 is packaged in a compact (6.25mm ×
Increased Output Current
11.25mm × 2.22mm) over-molded Ball Grid Array (BGA) n Selectable Switching Frequency: 300kHz to 3MHz package suitable for automated assembly by standard n Compact Package (6.25mm × 11.25mm × 2.22mm) surface mount equipment. The LTM8051 is available with Surface Mount BGA SnPb (BGA) or RoHS compliant.
APPLICATIONS Configurable Output Array
n The LTM8051 outputs can be paralleled in an array for up Automated Test Equipment to 4.8A capability. n Distributed Supply Regulation n 1.2A Industrial Supplies 1.2A 2.4A 3.6A n Medical Equipment 1.2A 1.2A 4.8A All registered trademarks and trademarks are the property of their respective owners. 1.2A 1.2A 1.2A
Click to view associated Video Design Idea. TYPICAL APPLICATION 1.8-5VOUT from 7-40VIN Quad Step-Down Converter Efficiency, VIN = 24V, BIAS = 5V Efficiency, VIN = 24V, BIAS = 5V
VIN1 V 95 IN 7V to 40V RUN14 BIAS14 23.2k V 90 RT14 VOUT1 OUT1 5V fSW = 1.3MHz 47.5k 47µF 1.2A SYNC14 FB1 85 SHARE14 V 80 OUT4 VOUT4 1.8V VCC14 200k 100µF 1.2A FB4 75 VIN4 GND 70 EFFICIENCY (%) VIN23 RUN23 BIAS23 65 24.9k RT23 VOUT2 VOUT2 3.3V 60 OUT f 3.3V SW = 1.2MHz 78.7k 100µF 1.2A 5VOUT PINS NOT USED: SYNC23 FB2 TRSS1, TRSS2, 55 TRSS3, TRSS4, SHARE23 0 0.5 1 1.5 2 PG1, PG2, PG3, VOUT3 VOUT3 2.5V LOAD CURRENT (A) PG4, CLKOUT14, VCC23 118k 100µF 1.2A CLKOUT23 8051 TA01b FB3 1µF GND x4 8051 TA01a Rev. 0 Document Feedback For more information www.analog.com 1 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Typical Applications Package Description Package Photo Design Resources Related Parts
FEATURES DESCRIPTION
n
Four Complete Step-Down Switching Power Supplies
The LTM®8051 is quad 40VIN, 1.2A step-down Silent n
Low Noise Silent Switcher® Architecture
Switcher μModule® regulator. The Silent Switcher archi- n
CISPR22 Class B Compliant
tecture minimizes EMI while delivering high efficiency at n frequencies up to 3MHz. Included in the package are the
CISPR25 Class 5 Compliant
n controllers, power switches, inductors, and support com-
Wide Input Voltage Range: 3V to 40V
n ponents. Operating over a wide input voltage range, the
Wide Output Voltage Range: 0.8V to 8V
LTM8051 supports output voltages from 0.8V to 8V, and n
1.2A Continuous Output Current per Channel at
a switching frequency range of 300kHz to 3MHz, each set
12VIN, 3.3VOUT, TA = 85°C
by a single resistor. Only the bulk input and output filter n
1.5A Continuous Output Current per Channel at
capacitors are needed to finish the design. The LTM8051
12VIN, 3.3VOUT, TA = 60°C
product video is available on website. n
Multiphase or Multi-µModule Parallelable for
The LTM8051 is packaged in a compact (6.25mm ×
Increased Output Current
11.25mm × 2.22mm) over-molded Ball Grid Array (BGA) n Selectable Switching Frequency: 300kHz to 3MHz package suitable for automated assembly by standard n Compact Package (6.25mm × 11.25mm × 2.22mm) surface mount equipment. The LTM8051 is available with Surface Mount BGA SnPb (BGA) or RoHS compliant.
APPLICATIONS Configurable Output Array
n The LTM8051 outputs can be paralleled in an array for up Automated Test Equipment to 4.8A capability. n Distributed Supply Regulation n 1.2A Industrial Supplies 1.2A 2.4A 3.6A n Medical Equipment 1.2A 1.2A 4.8A All registered trademarks and trademarks are the property of their respective owners. 1.2A 1.2A 1.2A
Click to view associated Video Design Idea. TYPICAL APPLICATION 1.8-5VOUT from 7-40VIN Quad Step-Down Converter Efficiency, VIN = 24V, BIAS = 5V Efficiency, VIN = 24V, BIAS = 5V
VIN1 V 95 IN 7V to 40V RUN14 BIAS14 23.2k V 90 RT14 VOUT1 OUT1 5V fSW = 1.3MHz 47.5k 47µF 1.2A SYNC14 FB1 85 SHARE14 V 80 OUT4 VOUT4 1.8V VCC14 200k 100µF 1.2A FB4 75 VIN4 GND 70 EFFICIENCY (%) VIN23 RUN23 BIAS23 65 24.9k RT23 VOUT2 VOUT2 3.3V 60 OUT f 3.3V SW = 1.2MHz 78.7k 100µF 1.2A 5VOUT PINS NOT USED: SYNC23 FB2 TRSS1, TRSS2, 55 TRSS3, TRSS4, SHARE23 0 0.5 1 1.5 2 PG1, PG2, PG3, VOUT3 VOUT3 2.5V LOAD CURRENT (A) PG4, CLKOUT14, VCC23 118k 100µF 1.2A CLKOUT23 8051 TA01b FB3 1µF GND x4 8051 TA01a Rev. 0 Document Feedback For more information www.analog.com 1 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Typical Applications Package Description Package Photo Design Resources Related Parts