Overview
The LTM8055IY-1#PBF is a 36V input, 8.5A buck-boost µModule regulator produced by Analog Devices Inc. This non-isolated point-of-load (PoL) module integrates the switching controller, power switches, inductor, and support components into a single package. It operates over an input voltage range of 5V to 36V and can regulate output voltages between 1.2V and 36V. The module is designed for ease of use, requiring only a few external components such as a resistor to set the switching frequency, a resistor divider to set the output voltage, and input and output capacitors to complete the design.
Key Specifications
| Parameter | Value |
|---|---|
| Input Voltage Range | 5V to 36V |
| Output Voltage Range | 1.2V to 36V |
| Maximum Output Current | 8.5A |
| Switching Frequency | 100kHz to 800kHz (adjustable with RT resistor) |
| Output Voltage Line Regulation | 0.5% (5V < VIN < 36V, IOUT = 1A) |
| Output Voltage Load Regulation | 0.5% (VIN = 12V, 0.1A < IOUT < 6A) |
| Output RMS Voltage Ripple | 25mV (VIN = 12V, IOUT = 3A) |
| Operating Temperature Range | –40°C to 125°C |
| Package Type | BGA-121 |
| Thermal Resistance (θJC) | 21.2°C/W |
Key Features
- Integrated switching controller, power switches, inductor, and support components in a single package.
- Adjustable output voltage and switching frequency.
- Input and output average current regulation with minimal external components.
- Overtemperature protection to prevent device damage during momentary overload conditions.
- Low output voltage ripple and high efficiency across a wide range of input and output conditions.
- Compact BGA-121 package suitable for space-constrained applications.
Applications
- Point-of-load (PoL) power conversion in industrial, medical, and telecommunications equipment.
- Power supplies for embedded systems, servers, and data storage devices.
- Battery-powered systems requiring high efficiency and wide input voltage range.
- Aerospace and defense applications where high reliability and thermal performance are critical.
Q & A
- What is the input voltage range of the LTM8055IY-1#PBF?
The input voltage range is from 5V to 36V.
- What is the maximum output current of the LTM8055IY-1#PBF?
The maximum output current is 8.5A.
- How is the output voltage adjusted on the LTM8055IY-1#PBF?
The output voltage is adjusted using a resistor divider connected to the FB pin.
- What is the operating temperature range of the LTM8055IY-1#PBF?
The operating temperature range is from –40°C to 125°C.
- Does the LTM8055IY-1#PBF have overtemperature protection?
Yes, it includes overtemperature protection to prevent device damage during momentary overload conditions.
- What package type is the LTM8055IY-1#PBF available in?
The module is available in a BGA-121 package.
- How is the switching frequency adjusted on the LTM8055IY-1#PBF?
The switching frequency is adjusted using an external resistor (RT).
- What are some typical applications for the LTM8055IY-1#PBF?
Typical applications include PoL power conversion in industrial, medical, and telecommunications equipment, as well as power supplies for embedded systems and aerospace applications.
- Does the LTM8055IY-1#PBF support input and output average current regulation?
Yes, it supports input and output average current regulation with minimal external components.
- What is the thermal resistance (θJC) of the LTM8055IY-1#PBF?
The thermal resistance (θJC) is 21.2°C/W.
