Datasheet LTM8064 (Analog Devices)
| Manufacturer | Analog Devices |
| Description | 58VIN, 6A CVCC Step-Down μModule Regulator |
| Pages / Page | 36 / 1 — FeaTures. DescripTion. Complete Step-Down Switch Mode Power Supply. CVCC: … |
| File Format / Size | PDF / 2.7 Mb |
| Document Language | English |
FeaTures. DescripTion. Complete Step-Down Switch Mode Power Supply. CVCC: Constant-Voltage, Constant-Current
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LTM8064 58VIN, 6A CVCC Step-Down µModule Regulator
FeaTures DescripTion
n
Complete Step-Down Switch Mode Power Supply
The LTM®8064 is a 58VIN, 6A, constant-voltage, constant- n
CVCC: Constant-Voltage, Constant-Current
current (CVCC), step-down µModule® (power module) n
2-Quadrant: Sources and Sinks Output Current
regulator. Included in the package are the switching con- n
Parallelable for Increased Output Current,
troller, power switches, inductor and support components.
Even from Different Voltage Sources
Operating over an input voltage range of 6V to 58V, the n
Adjustable Output Current Up to 7A When
LTM8064 supports an output voltage range of 1.2V to
Sourcing or 9.1A When Sinking
36V. CVCC operation allows the LTM8064 to accurately n
Wide Input Voltage Range: 6V to 58V
regulate its output current up to 7A when sourcing and n
1.2V to 36V Output Voltage
9.1A when sinking over the entire output range. The output n Selectable Switching Frequency: 100kHz to 1MHz current can be set by a control voltage, a single resistor or n (e1) RoHS Compliant Package a thermistor. To set the switching frequency, simply place n Programmable Soft-Start a resistor from the RT pin to ground. A resistor from FB n Tiny (16mm × 11.9mm × 4.92mm) Surface Mount to ground will set the output voltage. Only the bulk input BGA Package and output filter capacitors are needed to finish the design. The LTM8064 is packaged in a thermally enhanced, com-
applicaTions
pact (16mm × 11.9mm × 4.92mm) over-molded ball grid n Short-Circuit Protection or Accurate Output Current array (BGA) package suitable for automated assembly Limit by standard surface mount equipment. The LTM8064 is n High Power LED Drive RoHS compliant. n Peltier Driver L, LT, LTC, LTM, Linear Technology, the Linear logo and µModule are registered trademarks of n Motor Drive Linear Technology Corporation. All other trademarks are the property of their respective owners. Protected by U.S. Patents, including 7199560, 7321203 and others pending. n Battery/Supercap Charging and Cell Balancing
Typical applicaTion 58VIN, 5VOUT Step-Down CVCC Converter Output Voltage vs Output Current VIN = 12V
LTM8064 V V V IN VOUT OUT 7 IN 7.5V TO 58V 5V + 15µF + 2 6A ×4.7µF 330µF 100V 6 RUN 100µF 10V CTRL1 MODE CTRL2 5 SYNC VREF TAGE (V) 4 RT GND FB PINS NOT USED IN THIS CIRCUIT: SS 130k IOUTMON 3 325kHz 5.11k PGOOD 8064 TA01a OUTPUT VOL 2 1 0–10 –8 –6 –4 –2 0 2 4 6 8 OUTPUT CURRENT (A) 8064 TA01b 8064fa For more information www.linear.com/LTM8064 1 Document Outline Features Description Applications 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 Revision History Typical Application Related Parts
FeaTures DescripTion
n
Complete Step-Down Switch Mode Power Supply
The LTM®8064 is a 58VIN, 6A, constant-voltage, constant- n
CVCC: Constant-Voltage, Constant-Current
current (CVCC), step-down µModule® (power module) n
2-Quadrant: Sources and Sinks Output Current
regulator. Included in the package are the switching con- n
Parallelable for Increased Output Current,
troller, power switches, inductor and support components.
Even from Different Voltage Sources
Operating over an input voltage range of 6V to 58V, the n
Adjustable Output Current Up to 7A When
LTM8064 supports an output voltage range of 1.2V to
Sourcing or 9.1A When Sinking
36V. CVCC operation allows the LTM8064 to accurately n
Wide Input Voltage Range: 6V to 58V
regulate its output current up to 7A when sourcing and n
1.2V to 36V Output Voltage
9.1A when sinking over the entire output range. The output n Selectable Switching Frequency: 100kHz to 1MHz current can be set by a control voltage, a single resistor or n (e1) RoHS Compliant Package a thermistor. To set the switching frequency, simply place n Programmable Soft-Start a resistor from the RT pin to ground. A resistor from FB n Tiny (16mm × 11.9mm × 4.92mm) Surface Mount to ground will set the output voltage. Only the bulk input BGA Package and output filter capacitors are needed to finish the design. The LTM8064 is packaged in a thermally enhanced, com-
applicaTions
pact (16mm × 11.9mm × 4.92mm) over-molded ball grid n Short-Circuit Protection or Accurate Output Current array (BGA) package suitable for automated assembly Limit by standard surface mount equipment. The LTM8064 is n High Power LED Drive RoHS compliant. n Peltier Driver L, LT, LTC, LTM, Linear Technology, the Linear logo and µModule are registered trademarks of n Motor Drive Linear Technology Corporation. All other trademarks are the property of their respective owners. Protected by U.S. Patents, including 7199560, 7321203 and others pending. n Battery/Supercap Charging and Cell Balancing
Typical applicaTion 58VIN, 5VOUT Step-Down CVCC Converter Output Voltage vs Output Current VIN = 12V
LTM8064 V V V IN VOUT OUT 7 IN 7.5V TO 58V 5V + 15µF + 2 6A ×4.7µF 330µF 100V 6 RUN 100µF 10V CTRL1 MODE CTRL2 5 SYNC VREF TAGE (V) 4 RT GND FB PINS NOT USED IN THIS CIRCUIT: SS 130k IOUTMON 3 325kHz 5.11k PGOOD 8064 TA01a OUTPUT VOL 2 1 0–10 –8 –6 –4 –2 0 2 4 6 8 OUTPUT CURRENT (A) 8064 TA01b 8064fa For more information www.linear.com/LTM8064 1 Document Outline Features Description Applications 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 Revision History Typical Application Related Parts
