RT8207MZQW RT8207M IC
Product Title: RT8207MZQW (Marking: J7= / J7) Single Synchronous Buck PWM Controller for DDR2/DDR3 Memory Power (WQFN-20)
Product Specifications:
- Part Number: RT8207MZQW / RT8207M (Top Marking Code: J7= / J7xxx - e.g., J7 5L)
- Device Type: Single Synchronous Step-Down (Buck) PWM Controller for Memory Power Supplies
- Package / Case: WQFN-20 3x3 (Surface Mount)
- Pin Count: 20 Pins
- Input Voltage Range: 4.5V to 26V
- Output Voltage: Adjustable or Fixed 1.8V (DDR2) / 1.5V (DDR3) / 1.35V (DDR3L)
- Integrated Regulators: Integrated VTT LDO (0.75V / 0.675V) and VTTREF Reference Voltage Output
- Control Architecture: Quick-PWM™ / Constant On-Time (COT) Mode with Fast Transient Response
Short Description: High-efficiency Richtek RT8207MZQW (top marking: J7=) single synchronous step-down PWM controller IC in a compact 20-pin WQFN package. Designed specifically to generate $V_{DDQ}$, $V_{TT}$, and $V_{TTREF}$ power rails for DDR2, DDR3, and DDR3L memory subsystems on laptop motherboards. Combines a high-efficiency buck controller with a 1.5A sink/source tracking $V_{TT}$ linear regulator and a buffered $V_{TTREF}$ output in a single chip. Essential for component-level laptop motherboard repairs to restore missing RAM power rails ($V_{DDQ}$ / $V_{DDR}$), fix "No Display / 3 Beeps" RAM power failures, and replace shorted memory PWM controllers.
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පරීක්ෂා කර එය ඔබගේ පවතින නිෂ්පාදනය සමඟ ගලපන්න. ඔබ මෙම නිෂ්පාදනය අපගේ වෙබ්
අඩවියෙන් මිලදී ගෙන එය මවු පුවරුවේ සවි කළ විට, එය ඔබේම අවදානම මත
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