My Inquiry
My Account
Analog Devices Inc./Maxim Integrated MAX20077ATCC/VY+
- Part No.:
- MAX20077ATCC/VY+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 12-WFDFN Exposed Pad
- Datasheet:
-
MAX20077ATCC/VY+.pdf
- Description:
- IC REG BUCK ADJ 2A 12TDFN
- Quantity:
- Payment:
- Shipping:
Inventory:707
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MAX20077ATCC/VY+ from Analog Devices is a synchronous buck converter IC delivering up to 2.0A output current with 3.5V–36V input range, 2.1MHz fixed switching frequency, ±2% output voltage accuracy in FPWM mode, and 3.5µA quiescent current at no load-designed for automotive power rails requiring <3V regulation without pulse skipping.
For engineers reviewing the MAX20077ATCC/VY+ datasheet, MAX20077ATCC/VY+ pinout, MAX20077ATCC/VY+ application, or MAX20077ATCC/VY+ equivalent, key selection considerations include its 20ns minimum on-time enabling direct step-down from automotive battery to sub-3V rails, AEC-Q100 qualification, 40V load-dump tolerance, and side-wettable 12-pin TDFN package for automated optical inspection.
Technical Context
The MAX20077ATCC/VY+ implements current-mode control with integrated high-side and low-side MOSFETs, supporting forced PWM (FPWM) and pulse-skipping modes via SYNC pin configuration. Its 20ns minimum on-time enables stable regulation of output voltages as low as 1V from 36V input, eliminating need for cascaded converters in automotive infotainment and ADAS subsystems.
It features internal 5V bias generation, programmable soft-start (3.5ms typ), PGOOD monitoring with 92–93% threshold hysteresis, and spread-spectrum modulation (±3%) enabled via SPS pin-optimized for EMI-sensitive environments while maintaining deterministic timing in FPWM mode.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current | 2.0A continuous - supports compact power delivery for camera modules and radar sensors |
| Input Voltage Range | 3.5V to 36V - withstands cold-crank (3.5V) and load-dump (40V transient) per ISO 7637-2 |
| Switching Frequency | 2.1MHz (±135kHz) - enables use of 2.2µH inductor and small ceramic input/output caps |
| Quiescent Current | 3.5µA at no load - extends battery life in always-on automotive ECUs |
| Output Voltage Accuracy | ±2% in FPWM mode (6V–18V VIN) - ensures reliable logic supply for microcontrollers and SerDes |
| Minimum On-Time | 20ns - allows direct 12V-to-1.8V conversion without intermediate stage |
| Current Limit Threshold | 2.9A (typ), ±12% - provides robust short-circuit protection with predictable external component sizing |
Pinout & Package
MAX20077ATCC/VY+ uses a 3mm × 3mm, 12-pin side-wettable TDFN package (TD1233Y+2C) with exposed thermal pad connected to PCB ground plane for enhanced thermal dissipation in automotive under-hood applications.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 SPS | Spread-spectrum enable input | Pull-high to reduce EMI peak emissions by ±3% frequency dithering; internal 1MΩ pulldown |
| 2 EN | High-voltage enable input | Logic-compatible with 3.3V/5V MCUs or automotive KEY signals; no internal pullup/pulldown |
| 3 BST | Bootstrap capacitor node | Requires 0.1µF ceramic cap to LX for high-side gate drive; critical for dropout operation >99% duty cycle |
| 4 SUP | Main power input | Accepts 3.5V–36V; requires 4.7µF ceramic bypass to PGND for stability during transients |
| 5 LX | Switching node | Connects to inductor; high dv/dt node requiring tight layout to minimize EMI and ringing |
| 6 PGND | Power ground return | Low-impedance path for high-frequency switch currents; separate from AGND to avoid noise coupling |
| 7 AGND | Analog ground reference | Reference for FB, PGOOD, and internal error amplifier; must be star-connected to PGND at single point |
| 8 FB | Feedback input | 1.0V reference; connects to resistor divider for 1V–10V adjustable outputs or to BIAS for fixed 3.3V/5V |
| 9 OUT | Regulated output sense | Connects to output capacitor bank; senses regulated rail for feedback and PGOOD generation |
| 10 BIAS | Internal 5V bias supply | Provides 5V for internal circuitry and optional FB tie-off; requires ≥1µF ceramic cap to AGND |
| 11 SYNC | Mode control / synchronization input | Ground or open = skip mode; tied to BIAS = forced PWM; enables dynamic mode switching |
| 12 PGOOD | Open-drain power-good indicator | Active-high signal with 92–93% VOUT threshold; requires external 20kΩ pullup for system sequencing |
Key Features
| Feature | Design Value |
|---|---|
| Synchronous buck topology with integrated FETs | Eliminates need for external high-side/low-side MOSFETs and gate drivers-reducing BOM count and board area |
| 20ns minimum on-time capability | Enables single-stage 12V-to-1.8V conversion for automotive SoCs, avoiding efficiency loss from dual-stage designs |
| AEC-Q100 Grade-1 qualification (-40°C to +125°C) | Validated for under-hood automotive applications including engine control, body electronics, and ADAS cameras |
| 40V load-dump protection | Withstands ISO 7637-2 Pulse 5a transients without external TVS-reducing system-level protection components |
| Fixed 3.5ms soft-start with PGOOD delay | Prevents inrush current and ensures controlled ramp-up of downstream logic supplies during cold-crank conditions |
Applications
| Automotive Camera Power | ADAS Radar Sensor Supply |
|---|---|
Use Scenario: Powering 1.8V/3.3V image sensor and ISP in rear-view or surround-view camera modules. IC Role / Device Role / Timing Role: Primary DC-DC regulator converting vehicle battery (9V–16V) directly to low-noise 1.8V rail with fast transient response. Use Value: 20ns min-on-time enables single-stage conversion; 3.5µA IQ preserves battery during parking mode; PGOOD enables safe sensor initialization. |
Use Scenario: Generating stable 3.3V supply for millimeter-wave radar transceivers operating in harsh under-hood environments. IC Role / Device Role / Timing Role: High-reliability buck converter with 40V load-dump tolerance and -40°C to +125°C operation. Use Value: AEC-Q100 qualification ensures functional safety compliance; 99% duty-cycle dropout supports start-stop operation; spread spectrum reduces EMI interference with RF front-end. |
| Infotainment System Core Logic | Telematics Control Unit (TCU) PMIC Stage |
Use Scenario: Providing clean 3.3V/5V rails for application processors and memory in head-unit infotainment systems. IC Role / Device Role / Timing Role: Secondary buck regulator fed from main 5V/12V domain, delivering tightly regulated logic voltage with low ripple. Use Value: ±2% FPWM accuracy ensures processor stability; 2.1MHz switching minimizes output ripple (<10mVpp) without large LC filters. |
Use Scenario: Intermediate voltage regulation stage in multi-rail TCU power architecture, stepping down from 12V to 3.3V for CAN/FlexRay interfaces and MCU cores. IC Role / Device Role / Timing Role: High-efficiency, low-quiescent-current buck converter supporting always-on connectivity and firmware-over-the-air updates. Use Value: 3.5µA IQ enables >10-year battery backup for real-time clock; SYNC pin allows dynamic mode switching between FPWM (EMI-critical) and skip (efficiency-critical) phases. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous buck converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX20077ATCA/VY+ | 2.5A rated output current; 65ns minimum on-time; same 2.1MHz frequency and package | Supports higher-current loads (e.g., multi-core processors); less suitable for <3V direct conversion due to longer min-on-time | Select when output current >2.0A is required and input-to-output ratio permits 65ns min-on-time |
| LM61480QWRNXTQ1 | 3.5A output; 4.5V–36V input; 2.1MHz fixed freq; AEC-Q100 Grade 1; different pinout and control scheme | Lacks spread-spectrum and SPS pin; uses external compensation; larger solution size due to required loop compensation components | Choose when higher output current and TI ecosystem support are prioritized over minimal BOM count and EMI optimization |
Compared with MAX20077ATCA/VY+, the MAX20077ATCC/VY+ trades 0.5A output capacity for 20ns min-on-time-enabling direct sub-3V regulation where the ATCA variant would require pulse skipping or cascaded conversion. Versus LM61480QWRNXTQ1, it offers smaller footprint, lower IQ, and integrated EMI reduction at the cost of fixed compensation and vendor-specific design tools.
Availability
MAX20077ATCC/VY+ is available at Aetrix Electronics and suitable for automotive camera modules, ADAS radar sensors, infotainment logic supplies, and telematics control units requiring stable component supply across extended temperature and transient-voltage conditions.
Supply support for MAX20077ATCC/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 MAX20077 family is designed specifically for automotive power management-delivering ultra-low IQ, AEC-Q100 qualification, and robust transient handling in compact packages for next-generation E/E architectures.
FAQ
What is the maximum output current rating for the MAX20077ATCC/VY+?
The MAX20077ATCC/VY+ is rated for 2.0A continuous output current. This is explicitly specified in the General Description and Electrical Characteristics sections of the datasheet, distinguishing it from other variants like the MAX20077ATCA/VY+ (2.5A). The current limit threshold is 2.9A (typical) with ±12% tolerance, providing margin for transient overload conditions without requiring external current-sense circuitry.
Does the MAX20077ATCC/VY+ support output voltages below 3V, and how is this achieved?
Yes, the MAX20077ATCC/VY+ supports output voltages as low as 1V, confirmed by its 20ns minimum on-time specification and explicit statement in the Detailed Description: "If the output voltage being regulated is < 3V, then the MAX20077ATCC/VY+ can operate at 2.1MHz without skipping pulses." This capability enables direct step-down from automotive battery to sub-3V rails-eliminating need for inefficient two-stage conversion in camera and radar applications.
What package type and thermal characteristics does the MAX20077ATCC/VY+ use?
The MAX20077ATCC/VY+ uses a 3mm × 3mm, 12-pin side-wettable TDFN package (package code TD1233Y+2C) with exposed thermal pad. Its thermal resistance is θJA = 41°C/W (four-layer board), and θJC = 9°C/W. The exposed pad must be soldered to a PCB ground plane for effective heat dissipation-critical for sustained 2.0A operation in automotive ambient temperatures up to +125°C.
How does the MAX20077ATCC/VY+ handle automotive load-dump transients?
The MAX20077ATCC/VY+ withstands 40V load-dump transients per ISO 7637-2 without external protection, as stated in the Absolute Maximum Ratings (SUP: –0.3V to +40V) and Benefits section. Its internal circuitry remains functional during these events, and the device continues regulating once the transient subsides-reducing system-level TVS diode requirements and improving reliability in 12V automotive systems.
Is the MAX20077ATCC/VY+ AEC-Q100 qualified, and what grade does it meet?
Yes, the MAX20077ATCC/VY+ is AEC-Q100 qualified and meets Grade 1 requirements, supporting operation from –40°C to +125°C ambient temperature. This is explicitly stated in the Benefits and Features section and reinforced by the Recommended Operating Conditions table listing the full –40°C to +125°C range. Grade 1 qualification confirms suitability for under-hood automotive applications including engine control, body electronics, and ADAS subsystems.
MAX20077ATCC/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):
- 3.5V
- Voltage - Input (Max):
- 40V
- Voltage - Output (Min/Fixed):
- 1V
- Voltage - Output (Max):
- 10V
- Current - Output:
- 2A
- Frequency - Switching:
- 400kHz, 2.1MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount, Wettable Flank
- Supplier Device Package:
- 12-TDFN-EP (3x3)
MAX20077ATCC/VY+ FAQ
1.How can I place an order for MAX20077ATCC/VY+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX20077ATCC/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 MAX20077ATCC/VY+ reliable?
The price and inventory of MAX20077ATCC/VY+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX20077ATCC/VY+ is usually 5 days.
3.What payment methods are accepted for MAX20077ATCC/VY+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX20077ATCC/VY+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX20077ATCC/VY+?
MAX20077ATCC/VY+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX20077ATCC/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 MAX20077ATCC/VY+?
For technical support, including MAX20077ATCC/VY+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX20077ATCC/VY+ requirements.
6.How does Aetrix verify that MAX20077ATCC/VY+ is sourced from the original manufacturer or authorized distributors?
All MAX20077ATCC/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 MAX20077ATCC/VY+ meets industry standards.
7.What is the process for return or replacement of MAX20077ATCC/VY+?
All MAX20077ATCC/VY+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX20077ATCC/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 MAX20077ATCC/VY+ part is unused and in its original packaging.
Return procedure for MAX20077ATCC/VY+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX20077ATCC/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…
