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Linear Technology: 2A, 42V Boost Converter Now Offered in High Temperature “H” & “MP” Grades
Datum: Mittwoch, dem 18. August 2010
Thema: Rom Infos
MILPITAS, CA – August 17, 2010 – Linear Technology announces the “H-grade” and
“MP-grade” versions of the LT3580, a current-mode, fixed frequency step-up DC/DC converter with internal 2A, 42V switch. The device operates from an input voltage range of 2.5V to 32V, making it suitable for applications with input sources ranging from a single-cell Li-Ion to automotive inputs. The H-grade version operates with a junction temperature range of -40˚C to 150˚C, whereas the MP-grade operates with a junction temperature range of -55˚C to 125˚C. This compares to the E- and I-grade versions’ 125˚C maximum junction temperature. All electrical specifications are identical for the E, I, H and MP. The H-grade parts are both tested and guaranteed to the junction temperature range of -40˚C to 150˚C and are ideal for automotive and industrial applications, which are subject to high ambient temperatures. Similarly, the
MP-grade parts are tested and guaranteed to the junction temperature range of -55˚C to 125˚C and are well suited for military and avionics applications, which are subject to both low and high ambient temperatures.
The LT3580 can be configured as either a boost, SEPIC or an inverting converter. Its switching frequency can be programmed, via a single resistor or synchronized to an external clock, between 200kHz and 2.5MHz, enabling designers to minimize external component sizes and to avoid “noise critical” frequency bands. The combination of a 3mm x 3mm DFN package (or MSOP-8E) and tiny externals ensures a highly compact footprint while minimizing solution cost.
The LT3580HMSE and the LT3580MPMSE are available from stock in thermally enhanced MSOP-8E packages. For more information, visit www.linear.com/3580.
Summary of Features: LT3580H & LT3580MP
• Maximum Junction Temperature Range of -40°C to 150°C (H-Grade)
• Maximum Junction Temperature Range of -55°C to 125°C (MP-Grade)
• 2A Internal Power Switch
• Adjustable Switching Frequency
• Single Feedback Resistor Sets VOUT
• Synchronizable to External Clock
• High Gain SHDN Pin Accepts Slowly Varying Input Signals
• Wide Input Voltage Range: 2.5V to 32V
• Low VCESAT Switch: 300mV at 1.5A (Typical)
• Integrated Soft-Start Function
• Easily Configurable as a Boost or Inverting Converter
• User-Configurable Undervoltage Lockout (UVLO)
• Tiny 8-Lead 3mm × 3mm DFN & 8-Lead MSOP Packages
Veröffentlicht von >> xmedia << auf Freie-PresseMitteilungen.de
MILPITAS, CA – August 17, 2010 – Linear Technology announces the “H-grade” and
“MP-grade” versions of the LT3580, a current-mode, fixed frequency step-up DC/DC converter with internal 2A, 42V switch. The device operates from an input voltage range of 2.5V to 32V, making it suitable for applications with input sources ranging from a single-cell Li-Ion to automotive inputs. The H-grade version operates with a junction temperature range of -40˚C to 150˚C, whereas the MP-grade operates with a junction temperature range of -55˚C to 125˚C. This compares to the E- and I-grade versions’ 125˚C maximum junction temperature. All electrical specifications are identical for the E, I, H and MP. The H-grade parts are both tested and guaranteed to the junction temperature range of -40˚C to 150˚C and are ideal for automotive and industrial applications, which are subject to high ambient temperatures. Similarly, the
MP-grade parts are tested and guaranteed to the junction temperature range of -55˚C to 125˚C and are well suited for military and avionics applications, which are subject to both low and high ambient temperatures.
The LT3580 can be configured as either a boost, SEPIC or an inverting converter. Its switching frequency can be programmed, via a single resistor or synchronized to an external clock, between 200kHz and 2.5MHz, enabling designers to minimize external component sizes and to avoid “noise critical” frequency bands. The combination of a 3mm x 3mm DFN package (or MSOP-8E) and tiny externals ensures a highly compact footprint while minimizing solution cost.
The LT3580HMSE and the LT3580MPMSE are available from stock in thermally enhanced MSOP-8E packages. For more information, visit www.linear.com/3580.
Summary of Features: LT3580H & LT3580MP
• Maximum Junction Temperature Range of -40°C to 150°C (H-Grade)
• Maximum Junction Temperature Range of -55°C to 125°C (MP-Grade)
• 2A Internal Power Switch
• Adjustable Switching Frequency
• Single Feedback Resistor Sets VOUT
• Synchronizable to External Clock
• High Gain SHDN Pin Accepts Slowly Varying Input Signals
• Wide Input Voltage Range: 2.5V to 32V
• Low VCESAT Switch: 300mV at 1.5A (Typical)
• Integrated Soft-Start Function
• Easily Configurable as a Boost or Inverting Converter
• User-Configurable Undervoltage Lockout (UVLO)
• Tiny 8-Lead 3mm × 3mm DFN & 8-Lead MSOP Packages
Veröffentlicht von >> xmedia << auf Freie-PresseMitteilungen.de
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