■Complete Switch Mode Power Supply
■Wide Input Voltage Range:4.5V to 60V(7.5V Minimum Voltage to Start)
■Wide Output Voltage Range:2.5V to 24V(See Table 2)4A Output Current
■Programmable Soft-Start 10uA Shutdown Supply Current Selectable Switching Frequency Current Mode Control
■Up to 95% Efficiency
■Pb-Free(e4) RoHS Compliant Package with Gold Pad Finish Tiny, Low Profile(15mm× 15mm×4.32mm) Surface Mount LGA Package
APPLICATIOnS
a12V and 42V Automotive and Heavy Equipment
■48V Telecom Power Supplies
Avionics and Industrial Control Systems
Distributed Power Converters
DESCRIPTIOn
The LTM@8027 is a complete 4A, DC/DC step-down power supply. Included in the package are the switching control-
ler power switches, inductor and all support components.
0perating over an input voltage range of 4.5Vto 60V(7.5V minimum voltage to start), the LTM8027IV supports outputvoltages up to 24, and a switching frequency range of 100kHz to 500kHz, each set by a single resistor. Only the bulk input and output filter capacitors are needed to finish the design.
The low profile package(4.32mm) enables utilization ofunused space on the bottom of PC boards for high den-sity point of load regulation.A built-in soft-start timer is adjustable with a small capacitor.
The LTM8027is packagedin athermally enhanced, compact (15mm×15mm) and low profile (4.32mm) over-molded land grid array(LGA) package suitable for automated assembly by standard surface mount equipment. The LTM8027IV is Pb-free and RoHS compliant.
Feature
- Complete Switch Mode Power Supply
- Wide Input Voltage Range: 4.5V to 60V
- (7.5V Minimum Voltage to Start)
- Wide Output Voltage Range: 2.5V to 24V (See Table 2)
- 4A Output Current
- Programmable Soft-Start
- 9μA Shutdown Supply Current
- Selectable Switching Frequency Current Mode Control
- Up to 95% Efficiency
- SnPb (BGA) or RoHS Compliant (LGA and BGA) Finish
- Surface Mount LGA (15mm × 15mm × 4.32mm) and (15mm × 15mm × 4.92mm) BGA Packages
Applications
- 12V and 42V Automotive and Heavy Equipment
- 48V Telecom Power Supplies
- Avionics and Industrial Control Systems
- Distributed Power Converters
(Picture: Pinout)
