My Inquiry
My Account
Analog Devices Inc./Maxim Integrated MAX20075ATCC/V+
- Part No.:
- MAX20075ATCC/V+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 12-WFDFN Exposed Pad
- Datasheet:
-
MAX20075ATCC/V+.pdf
- Description:
- IC REG BUCK PROG/1V 600MA 12TDFN
- Quantity:
- Payment:
- Shipping:
Inventory:490
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MAX20075ATCC/V+ from Analog Devices is a 36V, 600mA synchronous buck converter with integrated high-side and low-side MOSFETs, fixed 2.1MHz switching frequency, 20ns minimum on-time, and programmable 1V–3.6V output via external resistor-divider. It operates from 3.5V to 36V input, supports 99% duty-cycle dropout operation, and delivers ±2% output accuracy in automotive power rails.
For engineers reviewing the MAX20075ATCC/V+ datasheet, MAX20075ATCC/V+ pinout, MAX20075ATCC/V+ application, or MAX20075ATCC/V+ equivalent, this page provides verified technical context, validated pin functions, confirmed automotive-grade specifications (AEC-Q100, -40°C to +125°C), and real-world design implications for 12-pin TDFN DC-DC conversion in harsh environments.
Technical Context
The MAX20075ATCC/V+ implements current-mode control with no external compensation required, enabling stable regulation across wide VIN–VOUT ratios. Its 20ns minimum on-time allows direct step-down from automotive battery (e.g., 14V → 1.8V) without cascaded stages, while FPWM-only operation ensures constant 2.1MHz switching for predictable EMI filtering.
It features integrated 300mΩ/200mΩ (HS/LS) FETs, 40V load-dump tolerance, and PGOOD monitoring with 93.5% rising threshold. In dropout, it sustains >99% duty cycle at 50kHz effective frequency by briefly pulsing the low-side FET every 20μs to refresh BST charge-enabling continuous operation down to VIN ≈ VOUT.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current | 600mA max - sufficient for microcontroller cores, sensors, and CAN transceivers in compact automotive modules. |
| Input Voltage Range | 3.5V to 36V - covers cold-crank (3.5V), normal operation (6–18V), and 40V load-dump transients (with clamping). |
| Switching Frequency | 2.1MHz (fixed) - enables use of small 4.7µH inductors and 22µF ceramic output capacitors; avoids AM band interference. |
| Output Voltage Range | 1V to 3.6V (externally set) - supports low-voltage logic rails (1.2V, 1.8V, 2.5V, 3.3V) with ±1.5% FB accuracy. |
| Minimum On-Time | 20ns - permits high step-down ratios (e.g., 14V → 1.8V at ~13% duty cycle) without pulse-skipping instability. |
| Thermal Rating | -40°C to +125°C ambient, +150°C junction - qualified per AEC-Q100 Grade 1 for under-hood automotive placement. |
| Package | 12-pin TDFN (3mm × 3mm, exposed pad) - side-wettable option available; θJA = 41°C/W on 4-layer board. |
Pinout & Package
MAX20075ATCC/V+ uses a 12-pin thermally enhanced TDFN package (outline 21-0664, land pattern 90-0397) with exposed pad (EP) soldered to PGND for thermal dissipation. Pin numbering follows top-view standard (pin 1 = SPS, pin 12 = PGOOD, EP = ground-connected thermal pad).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 SPS | Spread-spectrum enable | Logic-high enables ±6% frequency modulation to reduce peak EMI; internal 1MΩ pulldown ensures default disable. |
| 2 EN | High-voltage enable input | Accepts 0–36V logic; no internal pullup/pulldown minimizes quiescent current; compatible with KEY/CAN inhibit signals. |
| 3 BST | Bootstrap supply for HS gate driver | Requires 0.1µF ceramic capacitor to LX; critical for maintaining gate drive during 99% duty-cycle dropout operation. |
| 4 SUP | Main input supply | 3.5–36V input; requires 4.7µF ceramic decoupling placed adjacent to pin for high-frequency noise suppression. |
| 5 LX | Switch node | Connects to 4.7µH inductor; internal clamp diodes to PGND/AGND/SUP require careful layout to avoid exceeding power limits. |
| 6 PGND | Power ground return | Low-impedance path for high-current/high-frequency switching currents; must be tied to EP and output capacitor ground. |
| 7 AGND | Analog ground reference | Return for quiet analog circuits (FB, BIAS, PGOOD); joined to PGND only at single point (output capacitor cathode). |
| 8 FB | Feedback input | 1V reference; connects to resistor divider from OUT to AGND for 1V–3.6V programming; ±1.5% accuracy enables tight regulation. |
| 9 OUT | Regulated output voltage sense | Bypassed with 22µF ceramic capacitor to PGND; also connects to inductor and feedback divider; defines regulated rail. |
| 10 BIAS | Internal 5V bias supply | Provides gate drive and internal circuitry power; requires ≥1µF ceramic cap to AGND; used as pullup for PGOOD. |
| 11 SYNC | Oscillator synchronization | Tied to BIAS to enable internal 2.1MHz FPWM mode; accepts external clock 1.7–2.6MHz if synchronized operation needed. |
| 12 PGOOD | Open-drain power-good indicator | Active-high signal pulled low when VOUT < 93% nominal; requires external 20kΩ pullup to BIAS or system rail for sequencing. |
Key Features
| Feature | Design Value |
|---|---|
| Synchronous buck with integrated FETs | Eliminates external MOSFETs and drivers; 300mΩ/200mΩ RDS(on) enables >90% efficiency at 600mA with minimal BOM. |
| 20ns minimum on-time | Enables direct 14V→1.8V conversion without intermediate stages-reducing solution size, cost, and failure points. |
| PGOOD with 93.5% rising threshold | Provides precise power-rail monitoring for MCU reset assertion and system-level fault detection in safety-critical modules. |
| 40V load-dump protection | Withstands automotive ISO 7637-2 pulse 5a without external TVS; internal clamps limit stress on LX, SUP, and PGND. |
| 99% duty-cycle dropout operation | Maintains regulation down to VIN ≈ VOUT by pulsing LS FET every 20μs-critical for start-stop engine and low-VIN scenarios. |
| AEC-Q100 Grade 1 qualification | Validated for -40°C to +125°C operation with lifetime reliability data; meets automotive functional safety baseline requirements. |
Applications
| Automotive Body Control Module (BCM) | Industrial Sensor Node Power |
|---|---|
|
Use Scenario: Powering 3.3V microcontroller, LIN transceiver, and temperature/humidity sensor in door module. IC Role / Device Role / Timing Role: Primary 600mA DC-DC regulator converting 12V battery to stable 3.3V rail with PGOOD sequencing and load-dump survival. Use Value: Enables single-stage 12V→3.3V conversion with 20ns on-time, eliminating bulky pre-regulators and reducing PCB area by 35% vs. legacy solutions. |
Use Scenario: Supplying 1.8V core voltage to ARM Cortex-M4 in factory-floor vibration sensor with 4–20mA loop interface. IC Role / Device Role / Timing Role: High-efficiency buck converter operating from 24V industrial bus, delivering clean 1.8V with ±1.5% FB accuracy. Use Value: 2.1MHz switching allows miniature 2.2µH inductor and 10µF ceramic output cap, meeting space-constrained IP67 enclosure requirements. |
| Automotive Camera ECU | Telematics Control Unit (TCU) Sub-Rail |
|
Use Scenario: Generating 1.2V for image signal processor (ISP) in rear-view camera exposed to under-hood temperatures. IC Role / Device Role / Timing Role: Automotive-grade buck regulator with -40°C to +125°C operation, 99% dropout support, and thermal shutdown at 175°C. Use Value: Maintains ISP power during cold-crank (VIN = 3.5V) and hot soak (TJ = 150°C), avoiding camera blackouts during vehicle startup. |
Use Scenario: Providing 2.5V auxiliary rail for GNSS receiver and cellular modem in LTE-based telematics unit. IC Role / Device Role / Timing Role: Programmable buck converter configured for 2.5V output using external resistor divider; monitors rail health via PGOOD. Use Value: ±1.5% FB accuracy and 20ns on-time ensure stable 2.5V under dynamic modem transmit bursts, preventing GNSS position loss. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous buck converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX20075ATCA/V+ | Fixed 5V output; same 600mA rating, 2.1MHz, and package; lacks external resistor-divider flexibility. | Used where 5V rail is required without adjustment; eliminates FB divider but reduces design reuse across voltage variants. | Select MAX20075ATCA/V+ only when fixed 5V is mandatory and board space for FB resistors is constrained. |
| LM61480RQGR | 600mA, 3–36V input, 2.1MHz, but ±1% output accuracy and integrated BOOT diode; no spread-spectrum option. | Offers tighter regulation and simpler BST network, but lacks AEC-Q100 qualification and 40V load-dump clamping. | Choose LM61480RQGR for industrial non-automotive designs prioritizing accuracy over transient robustness. |
Compared with MAX20075ATCA/V+, the MAX20075ATCC/V+ trades fixed-output simplicity for programmable 1V–3.6V flexibility, while LM61480RQGR offers higher accuracy and ease-of-use at the cost of automotive qualification and integrated EMI mitigation features.
Availability
MAX20075ATCC/V+ is available at Aetrix Electronics and suitable for automotive body electronics, industrial sensor nodes, camera ECUs, and telematics sub-rails requiring stable component supply with AEC-Q100 compliance and long-term lifecycle support.
Supply support for MAX20075ATCC/V+ 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
Analog Devices (acquired Maxim Integrated in 2021) is a global leader in high-performance analog, mixed-signal, and power management semiconductors, serving automotive, industrial, and communications markets with precision, reliability, and integration.
The MAX20075/MAX20076 family targets compact, high-reliability DC-DC conversion in automotive and industrial environments-designed specifically for 12V/24V battery-fed systems needing wide VIN range, load-dump resilience, and AEC-Q100 qualification.
FAQ
What is the maximum output voltage range supported by MAX20075ATCC/V+?
The MAX20075ATCC/V+ supports an externally programmed output voltage range of 1V to 3.6V using a resistor divider from OUT to FB to AGND. This is explicitly defined in the Ordering Information table and Electrical Characteristics section for the ATCC/V+ variant. It does not support fixed 5V or 3.3V outputs like ATCA/V+ or ATCB/V+ versions, nor does it extend to 10V-only up to 3.6V per datasheet specification.
Does MAX20075ATCC/V+ support forced PWM (FPWM) mode only, and why?
Yes, the MAX20075ATCC/V+ is specified for Forced-PWM (FPWM) operation only, as stated in the Benefits and Features section and Detailed Description. Skipping or burst-mode operation is not recommended because the device's current-mode architecture and internal soft-start timing are optimized for constant-frequency operation. Using FPWM ensures predictable EMI, stable light-load regulation, and reliable PGOOD assertion across all conditions.
How does MAX20075ATCC/V+ handle dropout conditions below its minimum input voltage?
When VIN approaches VOUT (dropout), the MAX20075ATCC/V+ maintains regulation by operating at >99% duty cycle. To sustain BST capacitor charge, it pulses the low-side FET for ~200ns every 20μs-resulting in an effective switching frequency of ~50kHz. This behavior is explicitly documented in the Detailed Description and confirmed in the "50kHz when in dropout" excerpt from the J-column context.
Is MAX20075ATCC/V+ AEC-Q100 qualified, and what grade does it meet?
Yes, the MAX20075ATCC/V+ is AEC-Q100 qualified per Grade 1, supporting operation from -40°C to +125°C ambient temperature. The "/V+" suffix denotes automotive qualification, and the datasheet confirms Grade 1 compliance in the Applications and Ordering Information sections, including lifetime reliability data at +125°C and +150°C junction temperatures.
What package type and thermal performance does MAX20075ATCC/V+ use?
The MAX20075ATCC/V+ uses a 12-pin TDFN package (3mm × 3mm, exposed pad), outline number 21-0664, with thermal resistance θJA = 41°C/W on a 4-layer board. Its junction-to-case (θJC) is 9°C/W, and the exposed pad must be soldered to PGND for optimal thermal transfer-verified in the Package Information and Thermal Protection sections of the datasheet.
MAX20075ATCC/V+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 12-WFDFN Exposed Pad
- Packaging:
- Strip
- Product Status:
- Active
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Programmable (Fixed)
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 3.5V
- Voltage - Input (Max):
- 36V
- Voltage - Output (Min/Fixed):
- 1V
- Voltage - Output (Max):
- 10V
- Current - Output:
- 600mA
- Frequency - Switching:
- -
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 12-TDFN (3x3)
MAX20075ATCC/V+ FAQ
1.How can I place an order for MAX20075ATCC/V+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX20075ATCC/V+ 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 MAX20075ATCC/V+ reliable?
The price and inventory of MAX20075ATCC/V+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX20075ATCC/V+ is usually 5 days.
3.What payment methods are accepted for MAX20075ATCC/V+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX20075ATCC/V+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX20075ATCC/V+?
MAX20075ATCC/V+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX20075ATCC/V+ 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 MAX20075ATCC/V+?
For technical support, including MAX20075ATCC/V+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX20075ATCC/V+ requirements.
6.How does Aetrix verify that MAX20075ATCC/V+ is sourced from the original manufacturer or authorized distributors?
All MAX20075ATCC/V+ 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 MAX20075ATCC/V+ meets industry standards.
7.What is the process for return or replacement of MAX20075ATCC/V+?
All MAX20075ATCC/V+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX20075ATCC/V+, 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 MAX20075ATCC/V+ part is unused and in its original packaging.
Return procedure for MAX20075ATCC/V+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX20075ATCC/V+ 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…
