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Analog Devices Inc./Maxim Integrated MAX20058ATCA/VY+T
- Part No.:
- MAX20058ATCA/VY+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 12-WFDFN Exposed Pad
- Datasheet:
-
MAX20058ATCA/VY+T.pdf
- Description:
- IC REG BUCK ADJ 12TDFN
- Quantity:
- Payment:
- Shipping:
Inventory:17,122
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Product details
Overview
MAX20058ATCA/VY+T 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 features ±1.5% feedback regulation accuracy over –40°C to +125°C - used in automotive 14V/24V power rails for infotainment and body control modules.
For engineers reviewing the MAX20058ATCA/VY+T datasheet, MAX20058ATCA/VY+T pinout, MAX20058ATCA/VY+T application, or MAX20058ATCA/VY+T equivalent, key selection criteria include its 60V max input rating, programmable peak current limit (1.14A/1.6A), PFM/PWM mode flexibility, thermal shutdown at 160°C, and side-wettable 3mm × 3mm TDFN-EP package for automotive-grade reflow inspection.
Technical Context
The MAX20058ATCA/VY+T implements peak-current-mode control with internal slope compensation and a transconductance error amplifier. Its switching frequency is set via RT/SYNC resistor (200–2200kHz) or synchronized to external clock (220–2200kHz), and it supports true shutdown with EN/UVLO threshold programmable down to 1.115V.
It integrates dual LDOs: one powered from VIN (4.5–60V), another from EXTVCC (≥4.74V), enabling VCC sourcing optimization. The device provides open-drain RESET with 92%/95% FB UV thresholds and 2.1ms delay, plus thermal shutdown with 20°C hysteresis and automatic soft-start recovery.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 4.5V to 60V - supports wide automotive battery transients including cold-crank (4.5V) and load-dump (60V). |
| 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 rail regulation across full automotive temperature range. |
| Switching Frequency | 200kHz to 2200kHz - adjustable via RT/SYNC resistor or external sync signal for EMI optimization. |
| Peak Current Limit | Programmable to 1.14A or 1.6A via MODE/ILIM resistor - enables tailored overload protection for different inductor selections. |
| Thermal Shutdown | 160°C junction threshold with 20°C hysteresis - prevents latch-up during sustained overload or poor heatsinking. |
| Package | 12-pin side-wettable TDFN-EP (3mm × 3mm) - supports automated optical inspection (AOI) of solder joints in automotive manufacturing. |
Pinout & Package
MAX20058ATCA/VY+T is housed in a 12-pin, 3mm × 3mm side-wettable TDFN-EP package with exposed pad (EP) thermally connected to SGND. The package supports JEDEC J-STD-020 reflow and is RoHS-compliant (+ suffix).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| PGND (Pin 1) | Power ground return | Must be connected externally to power ground plane; tied to SGND at VCC bypass capacitor return path. |
| VIN (Pin 2) | Main input supply | Accepts 4.5V–60V; requires local 2.2µF ceramic decoupling to PGND for transient suppression. |
| VCC (Pin 3) | Internal 5V LDO output | Powers internal circuitry only; bypassed with 1µF ceramic to SGND; UVLO triggers at 3.8V (falling). |
| EN/UVLO (Pin 4) | Enable and input undervoltage lockout | Rising threshold = 1.215V; falling = 1.115V; unconnected = always-on operation. |
| RESET (Pin 5) | Open-drain fault indicator | Asserts low when FB < 92% of setpoint or during thermal shutdown; releases high after 2.1ms delay when FB > 95%. |
| RT/SYNC (Pin 6) | Frequency programming/synchronization | Resistor sets fSW (200–2200kHz); accepts external clock up to 2200kHz with 1.15×–1.4× fSW tolerance. |
| EXTVCC (Pin 7) | External LDO input | Enables VCC sourcing from output rail (e.g., 5V) above 4.74V; improves efficiency at high VIN. |
| FB (Pin 8) | Feedback input | Monitors output via resistor divider; regulated to 0.8V ±1.2% (typ); leakage < ±100nA. |
| SS (Pin 9) | Soft-start timing | Capacitor to SGND sets ramp time (e.g., 12nF = 2ms); prevents inrush into large output capacitors. |
| MODE/ILIM (Pin 10) | Operation mode and current limit select | Resistor selects PWM/PFM and 1.14A/1.6A peak limit; mode fixed after power-up. |
| SGND (Pin 11) | Analog ground reference | Separate from PGND; must connect to EP and VCC bypass cap return; isolation critical for noise immunity. |
| LX (Pin 12) | Switching node | Connects to inductor switch node; handles high di/dt; layout must minimize loop area to reduce EMI. |
Key Features
| Feature | Design Value |
|---|---|
| Synchronous FET integration | Integrated 0.9Ω high-side pMOS and 0.275Ω low-side nMOS - eliminates external MOSFETs and gate drivers, reducing BOM count and board space. |
| Automotive qualification | AEC-Q100 Grade 1 (–40°C to +125°C) - certified for under-hood and cabin applications without derating. |
| Flexible control modes | Selectable PFM (light-load efficiency) or PWM (constant-frequency EMI control) - configured at startup via MODE/ILIM resistor. |
| Robust power sequencing | True shutdown EN/UVLO (26V max), RESET output, and programmable soft-start - simplifies multi-rail system power-up coordination. |
| Thermal reliability | Junction-to-case θJC = 8.5°C/W and junction-to-ambient θJA = 41°C/W on 4-layer board - enables 1A operation with minimal copper area. |
Applications
| Infotainment Power Supply | Body Control Module (BCM) |
|---|---|
Use Scenario: Powers display controllers, audio codecs, and USB hubs in vehicle head units with 12V battery input. IC Role / Device Role / Timing Role: Primary 5V/1A buck regulator delivering clean, regulated rail with PFM mode for standby efficiency. Use Value: ±1.5% output accuracy maintains SoC core voltage stability; 60V input withstands load-dump events per ISO 7637-2. | Use Scenario: Supplies 3.3V logic rails for door module MCUs, LIN transceivers, and LED drivers. IC Role / Device Role / Timing Role: Secondary buck converter with programmable EN/UVLO to coordinate wake-up sequence with main ECU. Use Value: Adjustable soft-start prevents bus voltage sag during simultaneous module power-up; RESET output signals MCU when rail is valid. |
| ADAS Camera ECU | Truck Telematics Gateway |
Use Scenario: Generates 1.8V or 1.2V core voltage for image signal processors in rear-view or surround-view cameras. IC Role / Device Role / Timing Role: High-efficiency point-of-load regulator operating in PWM mode to meet strict EMI limits near RF antennas. Use Value: 2MHz switching capability enables compact 2.2µH inductor; thermal shutdown protects against sealed enclosure overheating. | Use Scenario: Provides isolated 5V supply for cellular modems and GPS receivers in heavy-duty truck telematics units. IC Role / Device Role / Timing Role: Input-tolerant buck converter handling wide 9V–32V truck battery range with PFM mode for low-idle consumption. Use Value: 1.6A current limit accommodates modem burst transmit loads; side-wettable package ensures solder joint reliability in high-vibration environments. |
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 |
|---|---|---|---|
| LM61480QWRNRQ1 | 4.5V–60V input, 1A, AEC-Q100, but uses current-mode control without internal slope compensation; requires external compensation network. | Designed for higher-EMI-sensitive ADAS systems requiring tighter output ripple; lacks integrated EXTVCC LDO path. | Choose LM61480QWRNRQ1 if external compensation tuning is acceptable and EXTVCC functionality is not required. |
| MPQ4420AGL-AEC1-Z | 3.3V–60V input, 2A, AEC-Q100, but no PFM mode; fixed 1.2V FB reference; no RESET output or thermal hysteresis spec. | Targeted at cost-sensitive body electronics where 2A headroom is needed but advanced sequencing features are unnecessary. | Choose MPQ4420AGL-AEC1-Z only if higher output current is mandatory and RESET/soft-start coordination is handled externally. |
Compared with LM61480QWRNRQ1 and MPQ4420AGL-AEC1-Z, the MAX20058ATCA/VY+T uniquely combines PFM/PWM mode selection, EXTVCC-powered VCC, open-drain RESET with precise UV thresholds, and side-wettable packaging - making it optimal for automotive subsystems requiring robust power sequencing and AOI-compatible assembly.
Availability
MAX20058ATCA/VY+T is available at Aetrix Electronics and suitable for automotive infotainment systems, body control modules, and ADAS camera ECUs requiring stable component supply, AEC-Q100 compliance, and long-term production continuity.
Supply support for MAX20058ATCA/VY+T 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+T belongs to Analog Devices' automotive power management portfolio, designed specifically for robust, high-voltage DC-DC conversion in harsh-temperature, safety-critical vehicle subsystems.
FAQ
What is the maximum input voltage rating for the MAX20058ATCA/VY+T?
The MAX20058ATCA/VY+T has an absolute maximum input voltage rating of +65V, with guaranteed operational performance from 4.5V to 60V. This 60V upper limit allows reliable operation during automotive load-dump transients per ISO 7637-2, while the 4.5V minimum supports cold-crank conditions. The device includes internal protection to prevent damage at 65V, but sustained operation above 60V is not specified.
Does the MAX20058ATCA/VY+T support both PWM and PFM modes, and how is the mode selected?
Yes, the MAX20058ATCA/VY+T supports both PWM and PFM modes, selected at power-up via a resistor on the MODE/ILIM pin. A 243kΩ resistor configures PWM mode with 1.6A current limit; 121kΩ selects PWM with 1.14A limit; open or 422kΩ enables PFM mode. Mode cannot be changed dynamically - it is latched at startup. PFM improves light-load efficiency; PWM ensures constant switching frequency for EMI control.
What is the purpose of the EXTVCC pin on the MAX20058ATCA/VY+T, and how does it affect efficiency?
The EXTVCC pin on the MAX20058ATCA/VY+T allows the internal 5V LDO (VCC) to be powered from an external source (e.g., the output rail) instead of VIN. When EXTVCC exceeds 4.74V (typ), VCC sourcing switches from VIN to EXTVCC, reducing power dissipation in the LDO and improving overall efficiency - especially at high input voltages (e.g., 48V). This feature enables optimized power architecture in multi-rail automotive systems.
How does the RESET output function on the MAX20058ATCA/VY+T, and what are its timing characteristics?
The RESET output on the MAX20058ATCA/VY+T is an open-drain signal that asserts low when FB falls below 92% of its target voltage or during thermal shutdown. It releases high 2.1ms after FB rises above 95% of regulation. This 3% hysteresis and fixed delay provide clean power-good signaling for MCU reset coordination. An external pull-up resistor is required; typical leakage is <1µA at +25°C.
Is the MAX20058ATCA/VY+T pin-compatible with other devices in the MAX2005x family?
No, the MAX20058ATCA/VY+T is not pin-compatible with other MAX2005x variants such as MAX20059 or MAX20057. While sharing the same 12-pin TDFN-EP package outline, pin functions differ significantly - for example, MAX20059 uses a different MODE/ILIM implementation and lacks EXTVCC, and MAX20057 omits the RESET pin entirely. PCB layout and schematic design must be verified per each specific part number's pin configuration.
MAX20058ATCA/VY+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 12-WFDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- 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+T FAQ
1.How can I place an order for MAX20058ATCA/VY+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX20058ATCA/VY+T 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+T reliable?
The price and inventory of MAX20058ATCA/VY+T 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+T is usually 5 days.
3.What payment methods are accepted for MAX20058ATCA/VY+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX20058ATCA/VY+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX20058ATCA/VY+T?
MAX20058ATCA/VY+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX20058ATCA/VY+T 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+T?
For technical support, including MAX20058ATCA/VY+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX20058ATCA/VY+T requirements.
6.How does Aetrix verify that MAX20058ATCA/VY+T is sourced from the original manufacturer or authorized distributors?
All MAX20058ATCA/VY+T 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+T meets industry standards.
7.What is the process for return or replacement of MAX20058ATCA/VY+T?
All MAX20058ATCA/VY+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX20058ATCA/VY+T, 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+T part is unused and in its original packaging.
Return procedure for MAX20058ATCA/VY+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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