Description

The SC454 is a single-phase chip, high-performance PWM controller designed to power advanced IMVP-6 and IMVP6+ ? processors. On-chip support is provided for all of the IMVP-6/6+ requirements, including Active Voltage Positioning, Geyserville-3 VID transitions, VID-Controlled Deeper Sleep voltage setting, PSI#, DPRSTP#, DPRSLP Control, Fast and Slow C4 Exit, and default Boot Voltage.

Features

◆ Single-Phase Solution with Integrated Drivers

◆ Hysteretic Control for Fast Transient Response

◆ VR_TT Support

◆ Active Voltage Positioning

◆ True Differential Remote (die) Sensing

◆ On-Chip Support for all IMVP-6/6+ Power Management Features

◆ VID Programmed Deeper Sleep Voltage

◆ Fast/Slow C4E Break Event Support

◆ Clock Enable (CLKEN#) Output

◆ Delayed Power Good Signal with Blanking

◆ Programmable Soft-Start and DAC Slew Control

◆ Programmable OCP Threshold

◆ Supports all Ceramic Decoupling Solutions

◆ 32-pin MLP (5x5)

◆ Latched Over-Voltage Protection

Applications

◆ IMVP-6/6+ Notebook PCs

◆ Embedded Applications

SC454屬于集成電路（IC） > LED 驅(qū)動器。Semtech Corporation制造生產(chǎn)的SC454LED 驅(qū)動器器件屬于 LED 驅(qū)動器電源管理集成電路 (PMIC) 系列，可通過標稱固定電壓的電源為負載（通常為發(fā)光二極管）提供電流，并且電流可控。它與用于電壓調(diào)節(jié)的類似產(chǎn)品的主要區(qū)別在于，這類器件提供較低的反饋電壓（以提高系統(tǒng)能效），而且通常可對器件工作點進行外部控制，可在照明應用中用于實現(xiàn)調(diào)光功能。