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Analog Devices Inc./Maxim Integrated MAX16907SATE/V+CMF
- Part No.:
- MAX16907SATE/V+CMF
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 16-WQFN Exposed Pad
- Datasheet:
-
MAX16907SATE/V+CMF.pdf
- Description:
- IC REG BUCK ADJ/1V 3A 16TQFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,692
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Product details
Overview
MAX16907SATE/V+CMF from Maxim Integrated is a 3A, current-mode, automotive-grade step-down DC-DC converter with integrated 70mΩ high-side MOSFET, operating from 3.5V to 36V input and delivering 5V fixed or 1V–10V adjustable output at up to 3A. It features 30µA no-load quiescent current, 2.2MHz switching frequency (adjustable 1–2.2MHz), and operates across –40°C to +125°C for engine control units and ADAS power rails.
For engineers reviewing the MAX16907SATE/V+CMF datasheet, MAX16907SATE/V+CMF pinout, MAX16907SATE/V+CMF application, or MAX16907SATE/V+CMF equivalent, key selection criteria include its 42V transient tolerance, skip-mode light-load efficiency, integrated BIAS LDO, PGOOD monitoring, and TQFN-16 (5mm × 5mm) thermally enhanced package with exposed pad.
Technical Context
The MAX16907SATE/V+CMF implements a constant-frequency current-mode control architecture with internal transconductance error amplifier (gm = 900µS), 80ns minimum on-time, and 98% maximum duty cycle-enabling stable regulation during cold-crank undervoltage events down to 3.5V input. Its dual-supply inputs (SUP and SUPSW) decouple logic and power-switch biasing, supporting robust operation under load-dump and reverse-battery conditions.
It integrates a 5V/100mA BIAS LDO, programmable oscillator with resistor (RFOSC) or external clock (FSYNC) synchronization, and comprehensive protection including overvoltage (110% VFB trip), thermal shutdown (+175°C), and hiccup-mode overload recovery. The device enters skip mode below 300mA load and achieves 5µA shutdown current when EN is low.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 3.5V to 36V - supports wide automotive battery range including cold-crank (≥3.5V) and load-dump survival (42V transient) |
| Output Current | 3A continuous - sufficient for powering microcontrollers, sensors, and CAN transceivers in ECU modules |
| Switching Frequency | 1MHz to 2.2MHz - enables compact magnetics (e.g., 2.2µH inductor) and EMI optimization via spread spectrum (±6%) |
| Quiescent Current | 30µA at no load - extends battery life in always-on vehicle subsystems such as telematics and alarm systems |
| Output Voltage Options | 5V fixed (via FB-to-BIAS tie) or 1V–10V adjustable (via external resistor divider) - simplifies design for multiple rail requirements |
| Protection Features | Overvoltage, overtemperature, short-circuit, and undervoltage lockout - eliminates need for external supervision circuitry |
| Operating Temperature | –40°C to +125°C - qualified for under-hood automotive applications per AEC-Q100 stress test requirements |
Pinout & Package
MAX16907SATE/V+CMF is housed in a 16-pin TQFN package (5mm × 5mm, 0.5mm pitch) with exposed thermal pad (EP) requiring connection to a large-area ground plane for thermal management.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (FSYNC) | External clock sync input | Accepts external clock >10% above internal fSW for deterministic EMI reduction and multi-rail synchronization |
| 2 (FOSC) | Frequency-setting resistor node | Connects to GND via RFOSC (e.g., 12kΩ for 2.2MHz); sets oscillator frequency and influences loop bandwidth |
| 3 (PGOOD) | Open-drain power-good monitor | Asserts low when VOUT drops below 92.5% of regulation; enables safe power sequencing with downstream ICs |
| 4 (OUT) | Switch-regulator output | Delivers regulated DC output; supplies internal circuitry in standby when VOUT = 3–5.5V |
| 5 (FB) | Feedback voltage sense input | Connected to BIAS for 5V fixed output; connected to resistive divider for adjustable output (VFB = 1.0V typ) |
| 6 (COMP) | Error amplifier output | Interface for RC compensation network to stabilize control loop across line/load/temperature variations |
| 7 (BIAS) | Integrated 5V LDO output | Powers internal analog blocks; requires 1µF ceramic bypass capacitor to GND for noise immunity |
| 8 (GND) | Analog/digital ground reference | Primary signal return; must be tied to EP and system ground with low-inductance path |
| 9 (BST) | Bootstrap supply for high-side gate driver | Requires 0.1µF capacitor between BST and LX to sustain gate drive during high-duty-cycle operation |
| 10 (SUP) | Main supply input for logic/LDO | Accepts 3.5–36V; powers internal regulator; requires ≥4.7µF ceramic input capacitor |
| 11–12 (LX) | Switch node | Connects to inductor and Schottky freewheel diode anode; high dv/dt node requiring tight layout |
| 13–14 (SUPSW) | High-side switch supply input | Separate 3.5–36V input for power switch; decoupled with 0.1µF + 4.7µF ceramics to minimize switching noise |
| 15 (EN) | Enable input | Logic-compatible (3.3V–36V tolerant); pulls device into 5µA shutdown when low; supports KL30/KL15 wake-up schemes |
| 16 (I.C.) | Internally connected | Must be connected to GND; not functional but required for mechanical stability and thermal conduction |
| EP | Exposed thermal pad | Primary thermal path to PCB; must be soldered to solid copper ground plane (≥4 cm² recommended) |
Key Features
| Feature | Design Value |
|---|---|
| 42V input transient tolerance | Withstands ISO 7637-2 Pulse 5a load-dump events without external TVS, reducing BOM count and board area |
| 30µA standby current | Enables >1-year battery hold-up in always-on automotive modules without compromising start-stop functionality |
| 80ns minimum on-time | Supports high VIN/VOUT ratios (e.g., 24V→3.3V) at 2.2MHz, enabling ultra-compact designs with minimal inductor size |
| Integrated 5V BIAS LDO | Eliminates need for external bias supply; powers internal circuitry and reduces external component count by one regulator |
| Spread-spectrum modulation (S-version) | Reduces peak EMI by ±6% around 2.2MHz center frequency-factory-enabled in MAX16907SATE/V+CMF variant |
| Power-good (PGOOD) with 2.5% hysteresis | Provides clean, debounced (10–60µs) sequencing signal for FPGA, MCU, or PMIC startup coordination |
Applications
| Engine Control Unit (ECU) Power Supply | Advanced Driver Assistance Systems (ADAS) Camera Module |
|---|---|
Use Scenario: Powers 3.3V/1.8V rails for microcontroller, CAN transceiver, and sensor interface in gasoline/diesel engine control units. IC Role / Device Role / Timing Role: Primary 5V intermediate rail generator; provides stable, low-noise supply with fast transient response to handle injector/fuel-pump switching noise. Use Value: 98% max duty cycle maintains regulation during cold-crank (≤6V battery), while 30µA quiescent current meets OEM sleep-current budgets (<100µA). |
Use Scenario: Supplies 5V to image sensor, ISP, and serializer in rear-view or surround-view camera modules mounted near bumpers. IC Role / Device Role / Timing Role: Point-of-load regulator converting 12V vehicle battery to clean 5V; synchronized via FSYNC to avoid interference with image capture timing. Use Value: 42V transient tolerance survives load-dump events; spread-spectrum EMI reduction prevents pixel noise in high-resolution video streams. |
| Automotive Infotainment Head Unit | Industrial Vehicle Telematics Gateway |
Use Scenario: Generates 5V for display controller, audio codec, and USB hub in dashboard infotainment systems. IC Role / Device Role / Timing Role: High-efficiency buck converter operating in skip mode during screen-off states; PGOOD coordinates system wake-up sequence. Use Value: Adjustable output supports diverse SoC core voltages; 2.2MHz switching allows use of small 2.2µH inductors, saving PCB space in crowded head unit layouts. |
Use Scenario: Powers LTE modem, GNSS receiver, and CAN FD controller in fleet-management telematics devices installed in trucks/buses. IC Role / Device Role / Timing Role: Main DC-DC stage converting 24V truck battery to isolated 5V rail; withstands harsh vibration, wide temperature, and long-term reliability demands. Use Value: –40°C to +125°C operation ensures function in unventilated enclosures; thermal shutdown + automatic recovery prevents field failures during overheating events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar step-down converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM61480RQR | 4.5–36V input, 8A output, 2.1MHz fixed frequency, no spread spectrum, 15µA IQ | Higher current capacity; lacks BIAS LDO and PGOOD; requires external feedback resistors for all outputs | Choose LM61480RQR only if >3A output or lower IQ is critical; MAX16907SATE/V+CMF preferred for integrated features and automotive qualification. |
| TPS62933RTER | 3–36V input, 3A output, 1.8–2.2MHz adjustable, 15µA IQ, no BIAS LDO, no PGOOD | No integrated bias regulator or power-good signal; requires external 5V bias source and sequencing logic | TPS62933RTER suits cost-sensitive industrial designs where BIAS/PGOOD are implemented externally; MAX16907SATE/V+CMF delivers full automotive-ready integration. |
Compared with LM61480RQR and TPS62933RTER, MAX16907SATE/V+CMF uniquely combines 5V BIAS LDO, PGOOD, 42V transient tolerance, and factory-enabled spread spectrum in a single AEC-Q100 qualified 3A buck-reducing total solution size and validation effort for automotive power rails.
Availability
MAX16907SATE/V+CMF is available at Aetrix Electronics and suitable for automotive ECU, ADAS camera modules, infotainment head units, and industrial telematics gateways requiring stable component supply across extended temperature and high-reliability environments.
Supply support for MAX16907SATE/V+CMF 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) is a semiconductor company specializing in high-performance analog, mixed-signal, and power management ICs for automotive, industrial, and communications markets.
The MAX16907SATE/V+CMF belongs to Maxim's automotive power management portfolio, designed specifically for demanding 12V/24V vehicle systems requiring AEC-Q100 qualification, low IQ, and robust transient handling in engine bay and exterior locations.
FAQ
What is the maximum input voltage transient the MAX16907SATE/V+CMF can survive?
The MAX16907SATE/V+CMF withstands input transients up to 42V for durations less than 1 second, complying with ISO 7637-2 Pulse 5a load-dump requirements. This eliminates the need for external TVS diodes in most automotive applications, provided layout follows Maxim's recommended grounding and decoupling practices for SUP and SUPSW pins.
Does the MAX16907SATE/V+CMF support spread-spectrum operation?
Yes-the MAX16907SATE/V+CMF is the "S-version" variant with factory-enabled spread-spectrum modulation, varying the 2.2MHz switching frequency by ±6% with a 400µs triangular period. This feature reduces peak EMI emissions without requiring external components or configuration, and is disabled automatically when FSYNC synchronization is active.
How does the MAX16907SATE/V+CMF achieve 30µA quiescent current?
The MAX16907SATE/V+CMF achieves 30µA no-load IQ by entering skip mode at light loads (<300mA), then disabling most internal circuitry-including the BIAS LDO-and drawing bias current directly from VOUT (when 3V ≤ VOUT ≤ 5.5V). This architecture minimizes battery drain in always-on automotive subsystems while maintaining fast wake-up capability via EN pin control.
What is the purpose of the separate SUP and SUPSW pins on the MAX16907SATE/V+CMF?
SUP powers the internal logic and bias LDO, while SUPSW independently supplies the high-side MOSFET gate driver. This dual-input architecture allows the device to maintain regulation during cold-crank events-even when SUPSW drops below VOUT-by sustaining 98% duty cycle. It also isolates switching noise from sensitive analog blocks powered by SUP.
Can the MAX16907SATE/V+CMF be used with a 3.3V output?
Yes-the MAX16907SATE/V+CMF supports adjustable output from 1V to 10V using an external resistor divider from OUT to FB to GND. For 3.3V output, set RFB1 and RFB2 so that FB senses 1.0V (VFB typical), e.g., RFB2 = 100kΩ and RFB1 ≈ 230kΩ. The device maintains ±1% output accuracy over temperature and line/load conditions.
MAX16907SATE/V+CMF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 16-WQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Adjustable (Fixed)
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 3.5V
- Voltage - Input (Max):
- 36V
- Voltage - Output (Min/Fixed):
- 1V (5V)
- Voltage - Output (Max):
- 10V
- Current - Output:
- 3A
- Frequency - Switching:
- 2.2MHz
- Synchronous Rectifier:
- No
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-TQFN (5x5)
MAX16907SATE/V+CMF FAQ
1.How can I place an order for MAX16907SATE/V+CMF through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX16907SATE/V+CMF 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 MAX16907SATE/V+CMF reliable?
The price and inventory of MAX16907SATE/V+CMF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX16907SATE/V+CMF is usually 5 days.
3.What payment methods are accepted for MAX16907SATE/V+CMF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX16907SATE/V+CMF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX16907SATE/V+CMF?
MAX16907SATE/V+CMF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX16907SATE/V+CMF 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 MAX16907SATE/V+CMF?
For technical support, including MAX16907SATE/V+CMF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX16907SATE/V+CMF requirements.
6.How does Aetrix verify that MAX16907SATE/V+CMF is sourced from the original manufacturer or authorized distributors?
All MAX16907SATE/V+CMF 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 MAX16907SATE/V+CMF meets industry standards.
7.What is the process for return or replacement of MAX16907SATE/V+CMF?
All MAX16907SATE/V+CMF units undergo pre-shipment inspection (PSI). If there is an issue with MAX16907SATE/V+CMF, 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 MAX16907SATE/V+CMF part is unused and in its original packaging.
Return procedure for MAX16907SATE/V+CMF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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