My Inquiry
My Account
Analog Devices Inc./Maxim Integrated MAX20008AFOD/VY+
- Part No.:
- MAX20008AFOD/VY+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 17-PowerWFQFN
- Datasheet:
-
MAX20008AFOD/VY+.pdf
- Description:
- IC REG BUCK 3.3V 8A 17FC2QFN
- Quantity:
- Payment:
- Shipping:
Inventory:371
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MAX20008AFOD/VY+ from Maxim Integrated is an AEC-Q100 qualified, 8A synchronous automotive buck converter with integrated high-side and low-side MOSFETs, 3.5V–36V input range, 25µA quiescent current in skip mode, and resistor-programmable switching frequency from 220kHz to 2.2MHz. It delivers fixed 5V/3.3V or adjustable 1V–10V output voltage and operates at up to 98% duty cycle for cold-crank resilience in vehicle infotainment power rails.
For engineers reviewing the MAX20008AFOD/VY+ datasheet, MAX20008AFOD/VY+ pinout, MAX20008AFOD/VY+ application, or MAX20008AFOD/VY+ equivalent, key selection considerations include its 17-pin FC2QFN package, ±2% output voltage accuracy, spread-spectrum EMI reduction option, forced-PWM/skip-mode operation, and 40V load-dump tolerance for under-hood deployment.
Technical Context
This current-mode controller integrates gate drivers, internal compensation, and a 5V BIAS LDO that switches to VOUT post-startup for efficiency. It supports external synchronization (SYNC pin), programmable soft-start (5ms fixed), and cycle-by-cycle current limiting with hiccup-mode short-circuit protection.
Thermal shutdown activates at 175°C with 15°C hysteresis; overvoltage protection triggers at 107% VOUT rising threshold and releases at 105% falling threshold. The device uses a single external resistor (FOSC-to-GND) to set switching frequency and requires no external bootstrap diode due to integrated charge-pump architecture.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current | 8A continuous; enables PoL supply for high-power ADAS processors or display controllers without external FETs |
| Input Voltage Range | 3.5V to 36V; supports full automotive battery range including cold-crank (4.5V) and load-dump (40V tolerant) |
| Quiescent Current | 25µA in skip mode; sustains always-on modules like telematics or body control units during sleep states |
| Output Voltage Accuracy | ±2% over line/load/temperature; ensures stable MCU core voltage without post-regulation |
| Switching Frequency | 220kHz–2.2MHz via FOSC resistor; allows optimization of inductor size vs. EMI vs. light-load efficiency |
| Duty Cycle Max | 98%; maintains regulation down to VIN = VOUT + IOUT × RHS (e.g., ~5.3V @ 8A for 5V output) |
| Operating Temp | -40°C to +125°C junction; qualified for engine bay or dashboard mounting per AEC-Q100 Grade 1 |
Pinout & Package
MAX20008AFOD/VY+ is housed in a 3.5mm × 3.75mm, 17-pin FC2QFN package with exposed thermal pad. Pin 1 is OUT; pins 4,5,7,8 are PGND; pin 14 is GND; and pin 13 is BIAS - all defined per Maxim's land pattern 90-100056.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| OUT (Pin 1) | Power output node | Delivers regulated DC output; also supplies internal circuitry when BIAS switches over post-startup |
| RESET (Pin 2) | Open-drain reset signal | Asserts low when VOUT falls below 91% threshold; requires external pullup for system reset sequencing |
| BST (Pin 3) | Bootstrap capacitor connection | Connects 0.1µF ceramic between BST and LX to sustain high-side gate drive during 98% duty cycle |
| PGND (Pins 4,5,7,8) | Power ground return | Low-impedance path for LX current; must be tied together and connected to thermal pad for thermal performance |
| LX (Pin 6) | Switch node | Connects to inductor; carries full switching current (8A RMS); layout critical for EMI and efficiency |
| SUPSW (Pin 9) | High-side switch supply | Provides power to internal FETs; bypassed with 0.1µF + 4.7µF ceramics close to pin |
| SUP (Pin 10) | Main IC supply | Internally connected to SUPSW; must be wired directly to SUPSW externally for proper startup |
| EN (Pin 11) | Enable control | Logic-compatible input; requires VSUP > 7.5V before asserting high to avoid unsafe startup |
| SYNC (Pin 12) | Mode/frequency control | Pull to GND for skip mode; tie to BIAS or external clock for FPWM; voltage ≤ BIAS required |
| BIAS (Pin 13) | Internal LDO output | 5V regulator powering analog blocks; transitions to VOUT after startup depending on trim version and load |
| GND (Pin 14) | Analog reference | Separate from PGND; connects to feedback network and compensation components |
| COMP (Pin 15) | Error amplifier output | Connect RC network to GND for loop stability; sets bandwidth and phase margin |
| FB (Pin 16) | Voltage feedback input | Connect to resistive divider for adjustable output; tie to BIAS for factory-trimmed 3.3V/5V |
| FOSC (Pin 17) | Frequency programming | Resistor-to-GND sets fSW; 73.2kΩ → 400kHz, 12kΩ → 2.2MHz per datasheet equation |
Key Features
| Feature | Design Value |
|---|---|
| Integrated dual-MOSFET power stage | Eliminates 4 external FETs and gate drivers; reduces board area by >40% vs. controller-only solutions |
| Spread-spectrum switching (factory enabled) | ±3% frequency modulation centered on fOSC reduces peak EMI by up to 10dB without filter redesign |
| 98% max duty cycle with dropout recovery | Maintains regulation during 4.5V cold-crank transients without output collapse or restart |
| Reset output with UV/OV monitoring | Provides system-level power-good signaling with 25µs debounce and 0.2ms hold time |
| AEC-Q100 Grade 1 qualification | Validated for automotive use across -40°C to +125°C ambient with 40V load-dump immunity |
Applications
| Navigation & Radio Head Units | ADAS Camera Power Supply |
|---|---|
Use Scenario: Central infotainment head unit requiring clean, efficient 5V rail for SoC, display interface, and audio codec. IC Role / Device Role / Timing Role: Primary step-down regulator delivering 8A at 5V from 12V battery; provides RESET signal for SoC boot coordination. Use Value: 25µA quiescent current extends battery life in parked state; 98% duty cycle prevents brownout during ignition cranking. | Use Scenario: Front-facing stereo camera module needing stable 3.3V for image sensor and ISP with minimal EMI coupling into analog video paths. IC Role / Device Role / Timing Role: Fixed 3.3V PoL converter operating in forced-PWM mode synchronized to system clock to suppress switching noise in specific frequency bands. Use Value: Spread-spectrum option reduces radiated emissions at 2.2MHz; ±2% output accuracy ensures consistent ADC reference voltage. |
| Body Control Module (BCM) | Telematics Control Unit (TCU) |
Use Scenario: BCM supplying 5V to microcontroller, CAN transceivers, and LED drivers across wide temperature and input voltage ranges. IC Role / Device Role / Timing Role: Main 5V regulator with EN-controlled sequencing; RESET output monitors VOUT for fault logging and safe shutdown. Use Value: 40V load-dump tolerance eliminates need for upstream TVS; AEC-Q100 qualification ensures field reliability. | Use Scenario: Always-on TCU requiring ultra-low IQ power delivery to cellular modem and GNSS receiver during vehicle sleep modes. IC Role / Device Role / Timing Role: Skip-mode buck converter supplying 3.3V with 25µA no-load IQ; SYNC pin grounded to enable automatic light-load efficiency optimization. Use Value: Enables <100µA total system sleep current; thermal shutdown protects against enclosure overheating in sealed housings. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive buck converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM61480QRNXTQ1 | 4.5V–36V input, 8A, 2.1MHz max fSW, 14-pin WQFN; no spread spectrum; 35µA IQ in LP mode | Requires external BOOT capacitor; lacks integrated BIAS LDO switchover logic; no factory-programmable spread spectrum | Preferred where footprint minimization is critical and EMI filtering is handled at system level |
| TPS546B24RVFT | 4.5V–18V input, 10A, 1.2MHz max fSW, 28-pin QFN; digital PMBus interface; 25µA IQ in sleep mode | Supports dynamic voltage scaling and telemetry; wider VIN range not needed for 12V-only systems; higher pin count increases layout complexity | Chosen when real-time telemetry, adaptive voltage scaling, or multi-rail coordination is required |
Compared with LM61480QRNXTQ1 and TPS546B24RVFT, MAX20008AFOD/VY+ offers superior cold-crank resilience (3.5V start), integrated spread-spectrum EMI reduction, and automatic BIAS-to-VOUT switchover-making it optimal for cost-sensitive, space-constrained automotive PoL designs where analog simplicity and transient robustness are prioritized over digital configurability.
Availability
MAX20008AFOD/VY+ is available at Aetrix Electronics and suitable for automotive infotainment, ADAS camera power, and body control module applications requiring stable component supply, AEC-Q100 compliance, and long-term production continuity.
Supply support for MAX20008AFOD/VY+ includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Maxim Integrated, now part of Analog Devices, designs precision analog, mixed-signal, and power management ICs for automotive, industrial, and communications markets.
MAX20008AFOD/VY+ belongs to the MAX2000x automotive buck converter family engineered specifically for high-reliability, low-EMI point-of-load power in harsh vehicle environments - emphasizing cold-crank operation, load-dump survival, and AEC-Q100 qualification.
FAQ
What is the maximum output current capability of the MAX20008AFOD/VY+ under typical conditions?
The MAX20008AFOD/VY+ is rated for 8A continuous output current. Actual achievable current depends on PCB layout, thermal management, input voltage, switching frequency, and ambient temperature. With proper 4-layer board design and thermal pad soldering, it sustains 8A at 12VIN/5VOUT up to +85°C ambient in PWM mode per datasheet thermal curves.
Does the MAX20008AFOD/VY+ require an external bootstrap diode?
No, the MAX20008AFOD/VY+ does not require an external bootstrap diode. Its integrated charge-pump architecture drives the high-side MOSFET gate using the BST pin connected directly to a 0.1µF capacitor between BST and LX - eliminating discrete diode and associated losses or layout sensitivity.
How is the output voltage configured on the MAX20008AFOD/VY+?
The MAX20008AFOD/VY+ supports three output configurations: (1) tie FB to BIAS for factory-trimmed 5V or 3.3V; (2) connect a resistive divider from OUT to FB to GND for 1V–10V adjustment; (3) select fixed output at order code level (e.g., MAX20008AFOD/VY+ is 5V fixed). RFB2 ≤ 100kΩ is recommended for stability.
What protection features are integrated into the MAX20008AFOD/VY+?
The MAX20008AFOD/VY+ integrates cycle-by-cycle current limiting, hiccup-mode short-circuit protection, overvoltage protection (107% rising threshold), thermal shutdown (175°C with 15°C hysteresis), and undervoltage lockout on BIAS (2.7V–3.3V). All operate autonomously without external components.
Is spread-spectrum switching enabled by default on the MAX20008AFOD/VY+?
No, spread-spectrum switching is a factory-programmable option - not enabled by default. The MAX20008AFOD/VY+ variant does not include spread spectrum; it must be specified in the order code (e.g., MAX20008AFOD/VY+T with suffix 'T' denotes spread-spectrum enabled). Confirm ordering part number against Maxim's selector guide.
MAX20008AFOD/VY+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 17-PowerWFQFN
- Packaging:
- Tray
- Product Status:
- Active
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Fixed
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 3.5V
- Voltage - Input (Max):
- 36V
- Voltage - Output (Min/Fixed):
- 3.3V
- Voltage - Output (Max):
- -
- Current - Output:
- 8A
- Frequency - Switching:
- 220kHz ~ 2.2MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount, Wettable Flank
- Supplier Device Package:
- 17-FC2QFN (3.5x3.75)
MAX20008AFOD/VY+ FAQ
1.How can I place an order for MAX20008AFOD/VY+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX20008AFOD/VY+ on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for MAX20008AFOD/VY+ reliable?
The price and inventory of MAX20008AFOD/VY+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX20008AFOD/VY+ is usually 5 days.
3.What payment methods are accepted for MAX20008AFOD/VY+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX20008AFOD/VY+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX20008AFOD/VY+?
MAX20008AFOD/VY+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX20008AFOD/VY+ order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for MAX20008AFOD/VY+?
For technical support, including MAX20008AFOD/VY+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX20008AFOD/VY+ requirements.
6.How does Aetrix verify that MAX20008AFOD/VY+ is sourced from the original manufacturer or authorized distributors?
All MAX20008AFOD/VY+ products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that MAX20008AFOD/VY+ meets industry standards.
7.What is the process for return or replacement of MAX20008AFOD/VY+?
All MAX20008AFOD/VY+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX20008AFOD/VY+, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The MAX20008AFOD/VY+ part is unused and in its original packaging.
Return procedure for MAX20008AFOD/VY+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX20008AFOD/VY+ Tags
-
TPS562201DDCR
Texas Instruments
-
MC34063ABD-TR
STMicroelectronics
-
TPS561201DDCR
Texas Instruments
-
MC33063ADR
Texas Instruments
-
MC34063ADR
Texas Instruments
-
TPS560200DBVR
Texas Instruments
-
AP3012KTR-G1
Diodes Incorporated
-
TLV61048DBVR
Texas Instruments
-
AZ34063UMTR-G1
Diodes Incorporated
-
TPS562200DDCR
Texas Instruments
-
AP62300TWU-7
Diodes Incorporated
-
MC34063EBD-TR
STMicroelectronics
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
