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SC2688 Datasheet

Part Number SC2688
Manufacturers Semtech
Logo Semtech
Description Dual LDO Controller
Datasheet SC2688 DatasheetSC2688 Datasheet (PDF)

SC2688 Programmable Synchronous DC/DC Converter, Dual LDO Controller POWER MANAGEMENT Description Features The SC2688 combines a synchronous voltage mode controller with two low-dropout linear regulators providing most of the circuitry necessary to implement three DC/DC converters for powering advanced microprocessors such as Pentium® III. ‹ ·Synchronous design, enables no heatsink solution ‹ 95% efficiency (switching section) ‹ Designed for embedded Pentium® III requirements ‹ 1.5V, 2.5V sh.

  SC2688   SC2688






Dual LDO Controller

SC2688 Programmable Synchronous DC/DC Converter, Dual LDO Controller POWER MANAGEMENT Description Features The SC2688 combines a synchronous voltage mode controller with two low-dropout linear regulators providing most of the circuitry necessary to implement three DC/DC converters for powering advanced microprocessors such as Pentium® III. ‹ ·Synchronous design, enables no heatsink solution ‹ 95% efficiency (switching section) ‹ Designed for embedded Pentium® III requirements ‹ 1.5V, 2.5V short circuit protected linear controllers The SC2688 switching section features latched drive output for enhanced noise immunity, pulse by pulse current limiting and logic compatible shutdown. The SC2688 switching section operates at a fixed frequency of 140kHz, providing an optimum compromise between size, efficiency and cost in the intended application areas. Applications ‹ Embedded Pentium® III microprocessor supplies. The SC2688 linear sections are low dropout regulators with short circuit protection, supplying 1.5V for GTL bus and 2.5V for non-GTL I/O. Typical Application Circuit 12V 5V + 1500uF x4 10 0.1uF EN 3.3V 11 BST 4 VCC 5 LDOEN 12 EN 16 AGND 14 LDOV 15 GATE2 3 LDOS2 SC2688S CS+ 7 CS- 6 DH 8 DL 10 FB 13 PGND 9 GATE1 1 LDOS1 2 0.1uF 2R2 2R2 330uF + 1.5V + 330uF 2.5V + 330uF + 47uF 0.1uF 0.1uF 1.00k 2.32k 1.9uH 5mOhm VCC_CORE + 0.1uF 1500uF x6 1k Revision: March 25, 2004 1 www.semtech.com SC2688 POWER MANAGEMENT Absolute Maximum Ratings Exceeding .


2019-11-11 : VG2043    TPD3S716-Q1    TPD3S714-Q1    CH-101    TLC1079    SC2688    STM32L100R8    TLC1079Y    STM32F302C6    STM32F302R6   


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