Summary of LTM8064 – 58VIN, 6A CVCC Step- Down μModule Regulator
The LTM8064 is a compact, 58V input, CVCC step-down μModule regulator integrating a switching controller, power switches, inductor, and support components. It offers adjustable output current up to 7A sourcing or 9.1A sinking, with a wide voltage range of 1.2V to 36V. The device features selectable switching frequencies, programmable soft-start, and requires only external bulk filter capacitors for operation.
Parts used in the LTM8064 Project:
- LTM8064 μModule Regulator
- Switching Controller
- Power Switches
- Inductor
- Support Components
- Bulk Input Filter Capacitors
- Bulk Output Filter Capacitors
Features
- Complete Step-Down Switch Mode Power Supply
- CVCC: Constant-Voltage, Constant-Current
- 2-Quadrant: Sources and Sinks Output Current
- Parallelable for Increased Output Current, Even from Different Voltage Sources
- Adjustable Output Current Up to 7A When Sourcing or 9.1A When Sinking
- Wide Input Voltage Range: 6V to 58V
- 1.2V to 36V Output Voltage
- Selectable Switching Frequency: 100kHz to 1MHz
- (e1) RoHS Compliant Package
- Programmable Soft-Start
- Tiny (16mm × 11.9mm × 4.92mm) Surface Mount BGA Package
Typical Application
Description
The LTM®8064 is a 58VIN, 6A, constant-voltage, constantcurrent (CVCC), step-down μModule® (power module) regulator. Included in the package are the switching controller, power switches, inductor and support components. Operating over an input voltage range of 6V to 58V, the LTM8064 supports an output voltage range of 1.2V to 36V. CVCC operation allows the LTM8064 to accurately regulate its output current up to 7A when sourcing and 9.1A when sinking over the entire output range. The output current can be set by a control voltage, a single resistor or a thermistor. To set the switching frequency, simply place a resistor from the RT pin to ground. A resistor from FB to ground will set the output voltage. Only the bulk input and output filter capacitors are needed to finish the design.
The LTM8064 is packaged in a thermally enhanced, compact (16mm × 11.9mm × 4.92mm) over-molded ball grid array (BGA) package suitable for automated assembly by standard surface mount equipment. The LTM8064 is RoHS compliant.
Applications
- Short- Circuit Protection or Accurate Output Current Limit
- High Power LED Drive
- Peltier Driver
- Motor Drive
- Battery/Supercap Charging and Cell Balancing
For more detail: LTM8064 – 58VIN, 6A CVCC Step-Down μModule Regulator
- What is the maximum input voltage?
The device supports an input voltage range of 6V to 58V. - How can the output current be set?
The output current can be set using a control voltage, a single resistor, or a thermistor. - Can the switching frequency be adjusted?
Yes, the switching frequency is selectable from 100kHz to 1MHz by placing a resistor from the RT pin to ground. - Does the LTM8064 support constant-current mode?
Yes, it operates in constant-voltage, constant-current (CVCC) mode. - What is the package type?
It comes in a tiny 16mm × 11.9mm × 4.92mm surface mount BGA package. - Is the device RoHS compliant?
Yes, the package is RoHS compliant. - What are the primary applications?
Applications include high power LED drive, Peltier driver, motor drive, and battery charging. - Can the device sink current?
Yes, it can sink output current up to 9.1A.
