LTC6908 - Dual Output Oscillator with Spread Spectrum Modulation

LTC6909 - 1 to 8 Output, Multiphase Oscillator with Spread Spectrum Modulation

LTM8008 - 72VIN, 6 Output DC/DC SEPIC μModule Regulator

Features

One SEPIC Converter with Six Linear Regulators
Wide Input Voltage Range: 3V to 72V, 6V Start
Wide Operating Temperature: –40°C to 150°C (H-Grade)
Current Mode Control Provides Excellent Transient Response
Programmable Operating Frequency (100kHz to 1MHz) with One External Resistor
Synchronizeable to an External Clock
Programmable Input Undervoltage Lockout with Hysteresis
Programmable Soft-Start
Small 15mm × 15mm × 2.82mm LGA Package

Typical Application

Description

The LTM8008 is a 72V_IN, μModule SEPIC converter with six post regulators. The SEPIC controller’s fixed frequency, current-mode architecture results in stable operation over a wide range of supply and output voltages and features soft-start and frequency foldback functions to limit inductor current during start-up and output short-circuit.

The LTM8008 also includes six high performance, fixed output LDOs for post-regulation: one 5V at 500mA, one 3.3V at 300mA, and four 5V at 150mA. The output of the SEPIC controller is internally set to 5.6V for optimal efficiency. In addition to providing these outputs, the SEPIC converter can supply up to an additional 500mA to the system load.

The LTM8008 is packaged in a thermally enhanced, compact (15mm × 15mm) and low profile (2.82mm) over-molded land grid array (LGA) package suitable for automated assembly by standard surface mount equipment. The LTM8008 is Pb-free and RoHS compliant.

Packaging

For complete and up to date package information and drawings, please refer to our packaging page

15mm x 15mm x 2.82mm LGA

Order Info

Part numbers ending in PBF are lead free. Please contact LTC marketing for information on lead based finish parts.
Part numbers containing TR or TRM are shipped in tape and reel or 500 unit mini tape and reel, respectively
Please refer to our general ordering information or the product datasheet for more details

Package Variations and Pricing

Part Number	Package	Pins	Temp	Price (1-99)	Price (1k)^*	RoHS Data
LTM8008HV#PBF	LGA	121	H	$27.14	$19.00	View
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^* The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Linear Technology sales office or authorized distributor.

Demo Boards

Linear Technology demo boards are offered free of charge to qualified customers. Contact your local sales office or distributor to request a demo board. Certain demo boards are also available for sale via credit card on this website. Demo boards are for evaluation purposes only. It remains the customer’s responsibility to verify proper and reliable operation in the actual end application.

Part Number	Description	Price	Documentation
DC1630A	LTM8008 Demo Board \| 72VIN, 6-Output DC/DC SEPIC uModule Regulator	$0.00	Design File Manual Schematic
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Applications

Automotive Converters
Industrial Converters
Telecom Power Supplies

Simulate

LTspice IV is a powerful, fast and free simulation tool, schematic capture and waveform viewer with enhancements and models for improving the simulation of switching regulators. To download LTspice IV and other FREE simulation tools, please visit our Design Simulation page.

Technical Support

For immediate technical assistance, contact your local sales office or distributor or call 1-800-4-LINEAR (US customers only) or 408-432-1900.
For less urgent requests, please complete our Technical Support Request Form. Please allow 2-3 business days for reply.