MAX20040DATPA/VY+ Analog Devices Integrated Circuit (Quad Flat No-Lead) In Stock
The Analog Devices MAX20040DATPA/VY+ is an automotive-grade buck-boost converter operating from 2 V to 36 V input, delivering up to 1.2 A output current at 2.2 MHz switching frequency with an integrated H-bridge architecture. It supports both PWM and PFM control modes for high efficiency across load ranges. Housed in a 20-pin 4x4 mm LFCSP package, it is designed for 12 V automotive and industrial power rails.
- Manufacturer
- Analog Devices
- Package
- Quad Flat No-Lead
- Pin Count
- 20
- Lifecycle
- ACTIVE
- Datasheet
- MAX20040DATPA/VY+ Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $3.2200(MOQ 1)
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Wide 2 V to 36 V input range with integrated H-bridge enables true buck-boost conversion for automotive battery systems
- 2.2 MHz switching frequency minimizes external component size and reduces EMI interference in noise-sensitive designs
- Dual output current capability of 0.6 A and 1.2 A with PWM and PFM control for optimized light-load efficiency
Applications
The MAX20040DATPA/VY+ is designed for automotive ECU power supplies, ADAS sensor rails, and 12 V to 5 V regulated outputs in vehicles where the input voltage varies widely from cold-crank (down to 2 V) to load-dump (up to 36 V) conditions. Its high switching frequency of 2.2 MHz reduces the size of inductors and capacitors, making it suitable for compact automotive PCBs. It also serves industrial applications requiring reliable buck-boost regulation from unregulated 4.5 V to 36 V sources.
Specifications
| Manufacturer Package Code | 20-LFCSP_SS-4X4X0.75 |
| Date Of Intro | 2019-06-19 |
| YTEOL | 9 |
| Additional Feature | PFM CONTROL TECHNIQUE ALSO AVAILABLE |
| Analog IC - Other Type | SWITCHING REGULATOR |
| Control Mode | CURRENT-MODE |
| Control Technique | PULSE WIDTH MODULATION |
| Input Voltage-Max | 36V |
| Input Voltage-Min | 4.5V |
| Input Voltage-Nom | 14V |
| JESD-30 Code | S-XQCC-N20 |
| JESD-609 Code | e3 |
| Number of Functions | 1 |
| Output Current-Max | 1.2A |
| Output Voltage-Max | 12V |
| Output Voltage-Min | 4V |
| Output Voltage-Nom | 5V |
| Package Body Material | UNSPECIFIED |
| Package Equivalence Code | LCC20,.16SQ,20 |
| Package Shape | SQUARE |
| Package Style | CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE |
| Peak Reflow Temperature (Cel) | 260 |
| Screening Level | AEC-Q100 |
| Surface Mount | YES |
| Switcher Configuration | BUCK-BOOST |
| Switching Frequency-Max | 2350kHz |
| Terminal Finish | Matte Tin (Sn) - annealed |
| Terminal Form | NO LEAD |
| Terminal Pitch | 0.5mm |
| Terminal Position | QUAD |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Package | Quad Flat No-Lead |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What input voltage range does the MAX20040DATPA/VY+ support for automotive battery applications?
The MAX20040DATPA/VY+ supports an input voltage range from 2 V to 36 V, making it compatible with automotive battery systems including cold-crank conditions (below 4 V) and load-dump transients up to 36 V. This wide range is essential for 12 V automotive ECU power rails where supply voltage fluctuates significantly during engine start and stop cycles.
How does the MAX20040DATPA/VY+'s 2.2 MHz switching frequency affect passive component selection?
Operating at 2.2 MHz allows designers to use smaller inductors and capacitors compared to converters running at 400 kHz or 1 MHz. For example, a 2.2 MHz design may use a 2.2 µH inductor instead of a 10 µH part, reducing board area by up to 60%. This is particularly valuable in space-constrained automotive and industrial PCB layouts where every square millimeter matters.
When should a designer choose the MAX20040DATPA/VY+ over a standard buck or boost converter?
A buck-boost converter like the MAX20040DATPA/VY+ is required when the input voltage can be above, below, or equal to the desired output voltage, such as in automotive 12 V systems that must deliver a regulated 5 V or 3.3 V output across a 2 V to 36 V input range. Standard buck converters cannot regulate below the input, and boost converters fail when input exceeds the output, so the H-bridge architecture of this IC covers all operating conditions.
Related Guides
CL31A107MQHNNNE 1206 100 uF MLCC Selection Guide
How to choose CL31A107MQHNNNE and related 1206 MLCCs for low-voltage bulk capacitance and regulator stability.
Jul 2, 2026
CL05B103KB5NNNC 0402 10 nF X7R MLCC Selection Guide
How to choose CL05B103KB5NNNC and related 0402 MLCCs for bypassing, filtering, voltage derating, and sourcing.
Jul 2, 2026
ADAQ7768-1 Design Guide for Precision Vibration and Dynamic Signal Measurement
Design ADAQ7768-1 precision data acquisition channels for vibration and dynamic sensing with the right bandwidth, reference, clock, and layout choices.
Jun 30, 2026
AD5204BRZ10 Design Guide for SPI-Controlled Gain and Offset Calibration
Design AD5204BRZ10 digital potentiometer calibration loops with bounded trim span, safe wiper current, clean SPI routing, and reliable startup codes.
Jun 30, 2026
Why Buy from FindMyChip
About Analog Devices
Analog Devices (ADI) is a global leader in high-performance analog, mixed-signal, and digital signal processing integrated circuits used in virtually all types of electronic equipment.
More from Analog Devices
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $6.6300 | $6.63 |
| 10+ | $5.1000 | $51.00 |
| 150+ | $3.9827 | $597.40 |
| 1000+ | $3.2200 | $3220.00 |
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“We've been using FindMyChip for 2 years. Pricing is consistently 20-30% below Mouser/DigiKey for volume orders.”