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Analog Devices Inc./Maxim Integrated MAX20058ATCA/VY+
- Part No.:
- MAX20058ATCA/VY+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 12-WFDFN Exposed Pad
- Datasheet:
-
MAX20058ATCA/VY+.pdf
- Description:
- IC REG BUCK ADJ 12TDFN
- Quantity:
- Payment:
- Shipping:
Inventory:7,474
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Product details
Overview
The MAX20058ATCA/VY+ from Analog Devices is an AEC-Q100 qualified, synchronous step-down DC-DC converter IC with integrated high-side pMOS and low-side nMOS FETs. It operates from 4.5V to 60V input, delivers up to 1A output current, supports adjustable output voltage from 0.8V to 90%VIN, and maintains ±1.5% feedback regulation accuracy across –40°C to +125°C - enabling robust power conversion in 14V/24V truck and automotive systems.
For engineers reviewing the MAX20058ATCA/VY+ datasheet, MAX20058ATCA/VY+ pinout, MAX20058ATCA/VY+ application, or MAX20058ATCA/VY+ equivalent, key selection considerations include its programmable peak current limit (1.14A or 1.6A), 200kHz–2200kHz adjustable switching frequency with external SYNC capability, true shutdown EN/UVLO input (26V max), RESET output with 2.1ms delay, and side-wettable 3mm × 3mm TDFN-EP package optimized for thermal performance in space-constrained automotive PCBs.
Technical Context
This IC implements peak-current-mode control with internal slope compensation and a transconductance error amplifier. It supports dual operating modes - PWM (constant frequency, negative inductor current allowed) and PFM (pulse-skipping, higher light-load efficiency) - selected via resistor on MODE/ILIM pin.
The device integrates two LDO paths for VCC: one powered from VIN and another from EXTVCC, with automatic switchover at ~4.74V (rising) and ~4.44V (falling). Thermal shutdown activates at +160°C (typ) with 20°C hysteresis, and overcurrent protection includes programmable positive peak limit (1.14A/1.6A) and mode-dependent negative valley limit (–0.455A/–0.65A).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 4.5V to 60V - supports direct connection to 12V/24V/48V vehicle batteries including cold-crank and load-dump transients. |
| Output Current | Up to 1A continuous - sufficient for powering microcontrollers, sensors, and CAN transceivers in automotive ECUs. |
| Feedback Accuracy | ±1.5% over –40°C to +125°C - ensures stable output regulation under full automotive temperature stress without calibration. |
| Switching Frequency | 200kHz to 2200kHz, adjustable via RT/SYNC resistor or external clock - enables EMI optimization and inductor size reduction. |
| Peak Current Limit | Programmable to 1.14A or 1.6A via MODE/ILIM resistor - allows tuning of overload response and inductor saturation margin. |
| Operating Temperature | –40°C to +125°C ambient - meets automotive under-hood and cabin environmental requirements per AEC-Q100 Grade 1. |
| Package | 12-pin side-wettable TDFN-EP (3mm × 3mm) with exposed pad - supports automated optical solder inspection (AOI) and enhanced thermal dissipation (θJA = 41°C/W). |
Pinout & Package
MAX20058ATCA/VY+ is housed in a 12-pin, 3mm × 3mm side-wettable TDFN-EP package with exposed thermal pad (EP), designed for high-density automotive PCB layouts and reliable reflow soldering with AOI compatibility.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 PGND | Power ground return for high-current switching path | Must be connected externally to power ground plane; tied to SGND at VCC bypass capacitor return for noise isolation. |
| 2 VIN | Main input power supply input | Accepts 4.5V–60V; requires local 2.2µF ceramic decoupling to PGND to suppress high-frequency ripple and EMI. |
| 3 VCC | Internal 5V LDO output | Powers internal circuitry only; bypassed with 1µF ceramic to SGND; regulated from VIN or EXTVCC depending on voltage level. |
| 4 EN/UVLO | Enable and input undervoltage lockout input | Drives high to enable; resistor-divider from VIN sets turn-on threshold (1.215V typ); supports true shutdown (0.7V falling threshold). |
| 5 RESET | Open-drain output monitoring FB voltage | Asserts low when FB falls below 92% of set value; releases high 2.1ms after FB rises above 95%; also active during thermal shutdown. |
| 6 RT/SYNC | Frequency setting and external clock synchronization | Resistor-to-SGND sets discrete frequencies (200–2000kHz); accepts external clock 1.15×–1.4× fSW for system-level timing alignment. |
| 7 EXTVCC | External supply input for VCC LDO | Enables higher efficiency at high VIN by powering VCC from output rail; switchover occurs at 4.74V (rising) / 4.44V (falling). |
| 8 FB | Feedback input for output voltage regulation | Connected to center tap of resistor divider from VOUT to SGND; reference voltage is 0.8V (±1.5%) across temperature. |
| 9 SS | Soft-start timing control | Capacitor-to-SGND sets soft-start time (tSS = CSS / 6.25µA); prevents inrush current during power-up. |
| 10 MODE/ILIM | Mode selection and peak current limit programming | Resistor-to-SGND selects PWM/PFM mode and 1.14A/1.6A current limit; configuration fixed after power-up. |
| 11 SGND | Analog ground reference | Reference for FB, SS, MODE/ILIM, RT/SYNC; must be connected to PGND at single point near VCC bypass capacitor. |
| 12 LX | Switching node connection | Connects directly to inductor switch node; carries high di/dt current; layout must minimize loop area to reduce EMI. |
| EP | Exposed thermal pad | Must be soldered to SGND plane with thermal vias; primary path for heat dissipation (θJC = 8.5°C/W). |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 qualification | Grade 1 (–40°C to +125°C) compliance verified - enables use in safety-critical automotive modules without additional qualification effort. |
| Integrated high-side pMOS / low-side nMOS | RDS(ON)H = 0.9Ω (typ), RDS(ON)L = 0.275Ω (typ) - eliminates external MOSFETs and gate drivers, reducing BOM count and layout complexity. |
| Programmable soft-start | Adjustable via external capacitor on SS pin - prevents output overshoot and inrush into large output capacitors during startup. |
| True shutdown EN/UVLO | EN/UVLO pin supports 26V absolute max rating and 0.7V falling threshold - enables direct connection to 24V battery with no level-shifting. |
| RESET with hysteresis and delay | Monitors FB with 3% UV hysteresis and 2.1ms release delay - provides clean, glitch-free power-good signaling for downstream logic sequencing. |
| Side-wettable TDFN-EP package | 12-pin, 3mm × 3mm footprint with exposed pad - supports automated optical inspection of solder joints and improves thermal reliability in high-vibration environments. |
Applications
| Body Control Module (BCM) | Advanced Driver Assistance Systems (ADAS) Camera Power |
|---|---|
|
Use Scenario: Supplies regulated 5V/1A to microcontroller, CAN interface, and sensor interfaces in vehicle body electronics. IC Role / Device Role / Timing Role: Primary buck regulator converting 12V battery to stable 5V rail; manages power sequencing via EN/UVLO and RESET. Use Value: ±1.5% regulation accuracy and –40°C to +125°C operation ensure consistent MCU boot and CAN communication across all vehicle operating conditions. |
Use Scenario: Powers image sensor and ISP in rear-view or surround-view cameras mounted in exterior housings. IC Role / Device Role / Timing Role: High-efficiency 5V/1A supply with PFM mode for low quiescent current during camera standby; RESET signals valid power to image processor. Use Value: 60V input withstands load-dump transients; side-wettable package resists thermal cycling and vibration-induced solder fatigue. |
| Commercial Vehicle Telematics Unit | Automotive Infotainment Display Backlight Supply |
|
Use Scenario: Provides 3.3V/1A to GPS module, cellular modem, and secure MCU in fleet management telematics boxes. IC Role / Device Role / Timing Role: Synchronous buck converter with programmable EN/UVLO threshold (set for 9V turn-on) and thermal shutdown for unattended operation. Use Value: Adjustable frequency (400kHz typical) avoids AM radio band interference; AEC-Q100 qualification satisfies OEM telematics platform requirements. |
Use Scenario: Generates 12V/0.5A from 24V truck battery to drive LED backlight strings in dashboard displays. IC Role / Device Role / Timing Role: Configured for 12V output using resistive feedback divider; uses PWM mode for constant-frequency operation to minimize display flicker. Use Value: 1.6A peak current limit accommodates inrush during cold start; EXTVCC-powered VCC improves efficiency at 24V input. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous step-down converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM61480QRTWRQ1 | 4.5V–36V input, 8A output, 2.1MHz fixed frequency, no PFM mode, different pinout | Better suited for high-current ADAS domain controllers; lacks programmable current limit and EXTVCC option | Select when >1A output and fixed high-frequency operation are required; not drop-in compatible due to pinout and feature set differences. |
| TPS54560QDGQRQ1 | 3.5V–60V input, 5A output, external MOSFETs required, no integrated LDO for VCC | Requires external high-side/low-side FETs and bootstrap circuit; higher BOM cost and layout complexity | Choose when higher output current and design flexibility outweigh integration benefits; requires redesign of power stage and gate drive. |
Compared with LM61480QRTWRQ1 and TPS54560QDGQRQ1, the MAX20058ATCA/VY+ offers optimal balance of integration (integrated FETs + dual-LDO VCC), automotive qualification, and configurability (PFM/PWM, programmable current limit, SYNC) for 1A-class ECU rails - making it uniquely suitable for compact, thermally constrained, and cost-sensitive automotive modules.
Availability
MAX20058ATCA/VY+ is available at Aetrix Electronics and suitable for automotive body electronics, commercial vehicle telematics, ADAS camera subsystems, and infotainment display power supplies requiring stable component supply, AEC-Q100 compliance, and long-term production continuity.
Supply support for MAX20058ATCA/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
Analog Devices, Inc. is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving automotive, industrial, communications, and healthcare markets.
The MAX20058ATCA/VY+ belongs to Analog Devices' automotive-grade power management IC portfolio, engineered specifically for robust, high-efficiency DC-DC conversion in harsh vehicular environments - emphasizing AEC-Q100 compliance, extended temperature operation, and transient resilience.
FAQ
What is the maximum input voltage rating for the MAX20058ATCA/VY+?
The MAX20058ATCA/VY+ has an absolute maximum input voltage rating of +65V (VIN to SGND), with recommended continuous operation from 4.5V to 60V. This 60V operating range enables direct connection to 24V commercial vehicle batteries and tolerance of ISO 7637-2 pulse 5a (load dump) transients up to 60V, making the MAX20058ATCA/VY+ suitable for demanding automotive power systems without external clamping circuitry.
Does the MAX20058ATCA/VY+ support both PWM and PFM operation modes?
Yes, the MAX20058ATCA/VY+ supports both PWM and PFM modes, selected via resistor value on the MODE/ILIM pin. With RILIM = 243kΩ or 121kΩ, it operates in PWM mode (constant frequency, negative inductor current allowed); with RILIM = open or 422kΩ, it operates in PFM mode (pulse-skipping, higher light-load efficiency). Mode selection is fixed at power-up and cannot be changed dynamically - the MAX20058ATCA/VY+ must be powered down to reconfigure.
What is the purpose of the EXTVCC pin on the MAX20058ATCA/VY+?
The EXTVCC pin on the MAX20058ATCA/VY+ provides an alternative input to power the internal 5V VCC LDO. When EXTVCC rises above ~4.74V, the LDO automatically switches from VIN to EXTVCC, improving overall efficiency - especially at high input voltages - by reducing dropout losses. This feature allows designers to power VCC from the output rail (e.g., 5V or 3.3V) using a simple RC network for transient protection, as documented in the MAX20058ATCA/VY+ typical application circuit.
How is thermal performance managed in the MAX20058ATCA/VY+ package?
The MAX20058ATCA/VY+ uses a 12-pin side-wettable TDFN-EP package with an exposed thermal pad (EP) soldered to SGND. Thermal resistance is specified as θJA = 41°C/W (four-layer board) and θJC = 8.5°C/W. Effective thermal management requires connecting EP to a large SGND copper plane with multiple thermal vias, tying PGND and SGND at the VCC bypass capacitor return, and minimizing high-current loop areas - all critical for maintaining junction temperature below +150°C under 1A load at +125°C ambient.
Is the MAX20058ATCA/VY+ pin-compatible with other devices in the MAX2005x family?
No, the MAX20058ATCA/VY+ is not pin-compatible with other members of the MAX2005x family (e.g., MAX20059, MAX20060). While sharing functional similarities such as AEC-Q100 qualification and side-wettable packaging, each variant features distinct pin assignments - particularly for MODE/ILIM, RT/SYNC, and EXTVCC - and differing internal architectures. Board-level reuse requires verification against the specific MAX20058ATCA/VY+ pinout diagram and layout guidelines; substitution without redesign is not supported.
MAX20058ATCA/VY+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 12-WFDFN Exposed Pad
- Packaging:
- Tray
- Product Status:
- Active
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Adjustable
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 4.5V
- Voltage - Input (Max):
- 60V
- Voltage - Output (Min/Fixed):
- 0.8V
- Voltage - Output (Max):
- 54V
- Current - Output:
- -
- Frequency - Switching:
- 200kHz ~ 2.033MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount, Wettable Flank
- Supplier Device Package:
- 12-TDFN-EP (3x3)
MAX20058ATCA/VY+ FAQ
1.How can I place an order for MAX20058ATCA/VY+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX20058ATCA/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 MAX20058ATCA/VY+ reliable?
The price and inventory of MAX20058ATCA/VY+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX20058ATCA/VY+ is usually 5 days.
3.What payment methods are accepted for MAX20058ATCA/VY+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX20058ATCA/VY+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX20058ATCA/VY+?
MAX20058ATCA/VY+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX20058ATCA/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 MAX20058ATCA/VY+?
For technical support, including MAX20058ATCA/VY+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX20058ATCA/VY+ requirements.
6.How does Aetrix verify that MAX20058ATCA/VY+ is sourced from the original manufacturer or authorized distributors?
All MAX20058ATCA/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 MAX20058ATCA/VY+ meets industry standards.
7.What is the process for return or replacement of MAX20058ATCA/VY+?
All MAX20058ATCA/VY+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX20058ATCA/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 MAX20058ATCA/VY+ part is unused and in its original packaging.
Return procedure for MAX20058ATCA/VY+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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