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FAN53612AUC08X
Fairchild Semiconductor
IC REG BUCK 1A
23355 Pcs New Original In Stock
Buck Switching Regulator IC Positive Fixed 0.8V 1 Output 600mA, 750mA 6-UFBGA, WLCSP
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Minimum 1
Minimum 1
5.0 / 5.0
- (393 Ratings)
FAN53612AUC08X
Product Overview
12433245
DiGi Electronics Part Number
FAN53612AUC08X-DGManufacturer
Fairchild Semiconductor
FAN53612AUC08X
Description
IC REG BUCK 1AInventory
23355 Pcs New Original In Stock
Buck Switching Regulator IC Positive Fixed 0.8V 1 Output 600mA, 750mA 6-UFBGA, WLCSP
Quantity
Minimum 1
Minimum 1
Purchase and inquiry
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FAN53612AUC08X Technical Specifications
Category
Power Management (PMIC), Voltage Regulators - DC DC Switching Regulators
Packaging
Bulk
Series
-
Product Status
Active
Function
Step-Down
Output Configuration
Positive
Topology
Buck
Output Type
Fixed
Number of Outputs
1
Voltage - Input (Min)
2.3V
Voltage - Input (Max)
5.5V
Voltage - Output (Min/Fixed)
0.8V
Voltage - Output (Max)
-
Current - Output
600mA, 750mA
Frequency - Switching
6MHz
Synchronous Rectifier
Yes
Operating Temperature
-40°C ~ 85°C (TA)
Mounting Type
Surface Mount
Package / Case
6-UFBGA, WLCSP
Supplier Device Package
6-WLCSP (1.23x0.88)
Base Product Number
FAN53612
Datasheet & Documents
HTML Datasheet
FAN53612AUC08X-DG
Environmental & Export Classification
Moisture Sensitivity Level (MSL)
Vendor Undefined
REACH Status
REACH Unaffected
Additional Information
Other Names
2156-FAN53612AUC08X-600039
Standard Package
792
Reviews
5.0/5.0-(Show up to 5 Ratings)
Dec 02, 2025
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Dec 02, 2025
在DiGi Electronics的網站買東西既方便又實惠，價格讓我很滿意，推薦給大家！
Dec 02, 2025
Bei DiGi Electronics stimmt einfach alles – pünktliche Lieferung und hochwertige Elektronikprodukte.
Dec 02, 2025
Hervorragende Produkte und ein Kundenservice, der immer auf Zack ist.“
Dec 02, 2025
The packaging was comprehensive, making sure everything arrived undamaged.
Dec 02, 2025
Their well-designed packaging ensures product safety, and prices are very competitive.
Dec 02, 2025
DiGi Electronics maintains excellent stock levels, reducing lead times significantly.
Dec 02, 2025
DiGi Electronics demonstrates exceptional logistics efficiency, ensuring timely delivery every time.
Dec 02, 2025
The quality assurance process at DiGi Electronics gives me confidence in every purchase.
Dec 02, 2025
Their commitment to supporting customers after sales is truly commendable.
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Frequently Asked Questions (FAQ)
What are the key design-in risks when using the FAN53612AUC08X in a high-frequency 6MHz buck converter application, and how can PCB layout help mitigate them?
When integrating the FAN53612AUC08X into a 6MHz switching design, the primary risks include increased switching losses and EMI due to fast edge rates. To mitigate these, minimize high-current loop area by placing input capacitors and the inductor as close as possible to the FAN53612AUC08X. Use short, direct traces for the SW node and ensure a solid ground plane. Given its 6-UFBGA (WLCSP) package, avoid via-in-pad unless properly filled, and follow controlled impedance practices to prevent signal integrity issues that can affect efficiency and noise performance.
Can the FAN53612AUC08X reliably replace the TPS62260DBVR in a 1A low-voltage FPGA core rail design, and what current limitations should I watch for?
While the FAN53612AUC08X provides a similar 0.8V fixed output and operates in the same input range as the TPS62260DBVR, its maximum continuous output current is limited to 600–750mA depending on thermal conditions, compared to the TPS62260’s 1A rating. Attempting to use the FAN53612AUC08X in a 1A FPGA core application risks thermal shutdown or voltage droop under load. If substituting, verify junction temperature with thermal vias in the PCB and ensure derating for ambient temperatures above 60°C. The FAN53612AUC08X is not recommended for sustained 1A loads without additional cooling.
How does the FAN53612AUC08X handle transient load steps in a high-speed DSP power rail, and what output capacitance is recommended for stable response?
The FAN53612AUC08X features a 6MHz switching frequency and internal compensation, enabling fast transient response suitable for DSP and processor core rails. For a typical 200mA to 600mA load step, use 10–22μF of low-ESR ceramic output capacitance (e.g., 0603 or 0402 X5R/X7R) close to the FAN53612AUC08X to limit voltage deviation within ±5%. Ensure the total output capacitance has an effective ESR below 10mΩ. Avoid over-sizing the capacitor, as this may interact with the internal control loop and cause overshoot.
What thermal considerations are critical when using the FAN53612AUC08X in a compact 1.23x0.88mm WLCSP package under full load?
Due to the FAN53612AUC08X’s tiny 6-WLCSP package, thermal performance is highly dependent on PCB layout. Under full 750mA load, power dissipation can exceed 200mW, leading to significant temperature rise without proper thermal management. To ensure reliable operation within the -40°C to 85°C range, connect the exposed die-pad area (if any) or critical thermal nodes to internal ground planes using multiple stacked vias. Use at least 2x2 array of thermal vias under the package footprint and maintain copper area on multiple layers to improve heat dissipation. Derate current by 15–20% in sealed or high-ambient environments.
Is the FAN53612AUC08X a suitable drop-in replacement for the RT6204GQW-8, and how do their efficiency and load regulation compare at light loads?
The FAN53612AUC08X can functionally replace the RT6204GQW-8 in 0.8V core applications with input voltages from 2.3V to 5.5V, but differences in control topology matter. The FAN53612AUC08X operates in forced PWM mode at light loads, which maintains 6MHz frequency but reduces efficiency compared to the RT6204GQW-8’s PFM mode. Expect 8–12% lower efficiency at loads below 100mA with the FAN53612AUC08X. Choose the FAN53612AUC08X only if noise sensitivity requires constant frequency operation; otherwise, consider the RT6204GQW-8 for better light-load efficiency.
Quality Assurance (QC)
DiGi ensures the quality and authenticity of every electronic component through professional inspections and batch sampling, guaranteeing reliable sourcing, stable performance, and compliance with technical specifications, helping customers reduce supply chain risks and confidently use components in production.
FAN53612AUC08X CAD Models
Fairchild Semiconductor FAN53612AUC08X PCB symbols & footprints
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