My Inquiry
My Account
Analog Devices Inc./Maxim Integrated MAX20074ATBA/V+
- Part No.:
- MAX20074ATBA/V+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 10-WFDFN Exposed Pad
- Datasheet:
-
MAX20074ATBA/V+.pdf
- Description:
- IC REG BUCK ADJ 3A 10TDFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,052
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MAX20074ATBA/V+ from Maxim Integrated is a synchronous step-down DC-DC converter delivering up to 3A output current with 2.2MHz fixed-frequency PWM operation, ±1.5% output voltage accuracy over line/load/temperature, and 2.7V–5.5V input range-designed for automotive point-of-load regulation where compact size and low quiescent current are critical.
For engineers reviewing the MAX20074ATBA/V+ datasheet, MAX20074ATBA/V+ pinout, MAX20074ATBA/V+ application, or MAX20074ATBA/V+ equivalent, key selection considerations include its 3mm × 3mm TDFN-10 package, factory-preset or resistor-adjustable VOUT (0.5V reference), active-low RESET output, spread-spectrum enable capability, and -40°C to +125°C AEC-Q100–compatible operating range.
Technical Context
The MAX20074ATBA/V+ employs current-mode control architecture with internal high- and low-side MOSFETs (RDS(ON) typical 45mΩ / 22mΩ), enabling stable regulation under fast load transients and simplifying PCB layout. Its 2.2MHz switching frequency supports all-ceramic output filtering and minimizes inductor size.
It integrates undervoltage (93% of VOUT) and overvoltage (107% of VOUT) monitoring, thermal shutdown, cycle-by-cycle overcurrent protection, and a fixed 0.85ms soft-start. The device supports forced-PWM and skip modes, with EN and SS_EN inputs enabling synchronization and spread-spectrum modulation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current | Up to 3A continuous-supports high-density PoL rails for ADAS sensors or infotainment SoCs. |
| Input Voltage Range | 2.7V to 5.5V-compatible with automotive 3.3V/5V supply rails and post-regulation after LDOs or primary converters. |
| Switching Frequency | 2.2MHz fixed-enables use of ≤1µH inductors and 10µF ceramic output capacitors, reducing solution footprint. |
| Output Voltage Accuracy | ±1.5% over line, load, and temperature-eliminates need for precision external feedback resistors in most designs. |
| Operating Temperature | -40°C to +125°C ambient-meets automotive under-hood and module-level thermal requirements. |
| Soft-Start Time | Fixed 0.85ms-controls inrush current during power-up without requiring external timing components. |
| Protection Features | Thermal shutdown, cycle-by-cycle overcurrent, UVLO, OVP (107%), UVP (93%)-ensures robust fault recovery in automotive environments. |
Pinout & Package
Package: 10-pin 3mm × 3mm × 0.85mm TDFN with exposed thermal pad (pin-compatible with MAX20073/MAX20074 family).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN | Input voltage supply | Accepts 2.7V–5.5V; connects to bulk capacitor and must be decoupled near pin. |
| SW | Switch node | Drives external inductor; high dv/dt node requiring tight loop area and ground plane clearance. |
| OUT | Regulated output | Delivers up to 3A; connects directly to output capacitor and load. |
| GND | Power ground | Common return for power stage; tied to exposed thermal pad for thermal performance. |
| PGND | Power ground | Dedicated low-impedance path for switch current return-must be separated from AGND until single-point tie. |
| AGND | Analog ground | Reference for feedback, EN, SS_EN, RESET; connected to PGND at single point near IC. |
| EN | Enable input | Active-high logic input; enables converter when pulled above 1.2V (typical threshold). |
| SS_EN | Spread-spectrum enable | Active-high input enabling frequency dithering to reduce EMI peak emissions. |
| RESET | Active-low reset output | Open-drain signal asserted low during startup, UVLO, or OVP-used for system power sequencing. |
| FB | Feedback input | Connects to resistor divider; referenced to 0.5V internal bandgap-sets VOUT = 0.5V × (1 + R1/R2). |
Key Features
| Feature | Design Value |
|---|---|
| Current-mode control | Provides inherent cycle-by-cycle current limiting and fast transient response without external compensation. |
| Factory-preset VOUT option | Eliminates external feedback resistors and associated placement/tolerance errors for standard output voltages. |
| Integrated high- and low-side FETs | Reduces BOM count and layout complexity versus discrete buck controllers; RDS(ON) optimized for efficiency at 3A. |
| Spread-spectrum modulation | Lowers EMI peak amplitude by spreading switching energy across 2.2MHz ±10% bandwidth-simplifies compliance testing. |
| 0.85ms fixed soft-start | Prevents output overshoot and inrush stress on downstream loads without requiring external RC timing network. |
Applications
| ADAS Camera Module Power | Automotive Infotainment SoC Core Rail |
|---|---|
Use Scenario: Powering 1.1V/2A core rail for a surround-view camera ISP in an AEC-Q100 qualified module. IC Role / Device Role / Timing Role: Primary synchronous buck regulator providing tightly regulated, low-noise core voltage with fast transient response. Use Value: ±1.5% accuracy and 2.2MHz operation enable compact 1.5×1.5mm inductor + 22µF ceramic solution meeting CISPR-25 Class 5 emission limits. | Use Scenario: Generating 0.85V/3A core supply for a quad-core automotive infotainment processor under varying thermal conditions. IC Role / Device Role / Timing Role: High-current PoL DC-DC converter with RESET signaling for safe processor boot sequencing. Use Value: Factory-preset 0.85V output eliminates resistor tolerance drift, while -40°C to +125°C rating ensures reliability across cabin temperature extremes. |
| Automotive Telematics LTE Modem Supply | Body Control Module Microcontroller Rail |
Use Scenario: Delivering 3.3V/1.5A to an LTE modem with strict EMI requirements in a compact telematics control unit. IC Role / Device Role / Timing Role: Synchronous buck converter with spread-spectrum enable to suppress narrowband EMI peaks during cellular transmission bursts. Use Value: SS_EN pin allows real-time EMI reduction during RF transmit events without sacrificing regulation stability or efficiency. | Use Scenario: Providing 5.0V/1A auxiliary rail for microcontroller peripherals and CAN transceivers in a BCM with limited board space. IC Role / Device Role / Timing Role: Compact, thermally robust buck converter supporting wide-input automotive battery variations (cold crank to load dump). Use Value: 2.7V–5.5V input range and integrated OVP/UVP protect against battery transients; TDFN-10 footprint fits tight BCM layouts. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous buck converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS628641RQYR | 4A output, 2.5V–5.5V input, 2.25MHz, 0.6V reference, no spread-spectrum | Higher current, no EMI dithering; requires external soft-start capacitor | Preferred when >3A load or tighter input UVLO (2.5V) is required; less suitable for CISPR-25 Class 5 systems without added filtering. |
| MPQ4436AGL-A-Z | 3A output, 3.3V–36V input, 2.2MHz, 0.8V reference, AEC-Q100 Grade 1 only | Wider input range but lower temp grade (−40°C to +125°C not guaranteed); no RESET output | Applicable for non-under-hood 12V systems needing higher VIN tolerance; not recommended for engine bay modules requiring full Grade 0 qualification. |
Compared with TPS628641RQYR and MPQ4436AGL-A-Z, the MAX20074ATBA/V+ uniquely combines AEC-Q100 Grade 0 support, integrated spread-spectrum EMI reduction, active-low RESET, and factory-preset VOUT-all in a 3mm × 3mm TDFN package-making it optimal for space-constrained, safety-critical automotive PoL nodes.
Availability
MAX20074ATBA/V+ is available at Aetrix Electronics and suitable for automotive ADAS, infotainment, and telematics applications requiring stable component supply, AEC-Q100 qualification, and compact high-efficiency DC-DC conversion.
Supply support for MAX20074ATBA/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
Maxim Integrated (now part of Analog Devices) designs precision analog, mixed-signal, and power management ICs for automotive, industrial, and communications markets.
The MAX20074ATBA/V+ belongs to Maxim's automotive-grade DC-DC converter product line, engineered specifically for demanding point-of-load regulation in ADAS, infotainment, and body electronics with emphasis on small size, low EMI, and extended temperature operation.
FAQ
What is the maximum output current supported by the MAX20074ATBA/V+?
The MAX20074ATBA/V+ supports up to 3A continuous output current under typical thermal conditions (TA = 25°C, 2-layer PCB with 2oz copper and thermal pad soldered). Derating applies above +85°C ambient; full 3A is maintained up to +125°C with proper heatsinking via the exposed pad.
Does the MAX20074ATBA/V+ require external feedback resistors to set output voltage?
No-the MAX20074ATBA/V+ offers factory-preset output voltages (e.g., 0.85V, 1.1V, 1.8V) achieving ±1.5% accuracy without external resistors. Alternatively, the FB pin accepts a resistor divider referenced to the internal 0.5V bandgap, allowing custom VOUT = 0.5V × (1 + R1/R2).
What is the function of the SS_EN pin on the MAX20074ATBA/V+?
The SS_EN pin on the MAX20074ATBA/V+ enables spread-spectrum frequency modulation when driven high. This dithers the 2.2MHz switching frequency by ±10%, reducing EMI peak amplitudes to aid CISPR-25 Class 5 compliance without altering loop dynamics or efficiency of the MAX20074ATBA/V+.
Is the MAX20074ATBA/V+ qualified for automotive applications?
Yes-the MAX20074ATBA/V+ is designed and tested to meet AEC-Q100 Grade 0 requirements (−40°C to +125°C ambient), includes built-in OVP, UVP, overtemperature shutdown, and short-circuit protection, and is manufactured in an IATF 16949–certified facility-making it suitable for automotive safety-critical power rails.
How does the RESET output of the MAX20074ATBA/V+ behave during startup and fault conditions?
The RESET output of the MAX20074ATBA/V+ is an active-low open-drain signal that remains low for the duration of the 0.85ms soft-start period and asserts low again during UVLO, OVP, or thermal shutdown. It releases high only when VOUT reaches ≥90% of target and remains stable, enabling reliable system power sequencing.
MAX20074ATBA/V+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 10-WFDFN Exposed Pad
- Packaging:
- Tube
- Product Status:
- Active
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Adjustable
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 2.7V
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 0.5V
- Voltage - Output (Max):
- 3.8V
- Current - Output:
- 3A
- Frequency - Switching:
- 2.2MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-TDFN (3x3)
MAX20074ATBA/V+ FAQ
1.How can I place an order for MAX20074ATBA/V+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX20074ATBA/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 MAX20074ATBA/V+ reliable?
The price and inventory of MAX20074ATBA/V+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX20074ATBA/V+ is usually 5 days.
3.What payment methods are accepted for MAX20074ATBA/V+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX20074ATBA/V+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX20074ATBA/V+?
MAX20074ATBA/V+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX20074ATBA/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 MAX20074ATBA/V+?
For technical support, including MAX20074ATBA/V+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX20074ATBA/V+ requirements.
6.How does Aetrix verify that MAX20074ATBA/V+ is sourced from the original manufacturer or authorized distributors?
All MAX20074ATBA/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 MAX20074ATBA/V+ meets industry standards.
7.What is the process for return or replacement of MAX20074ATBA/V+?
All MAX20074ATBA/V+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX20074ATBA/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 MAX20074ATBA/V+ part is unused and in its original packaging.
Return procedure for MAX20074ATBA/V+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX20074ATBA/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…
