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Analog Devices Inc./Maxim Integrated MAX16907SATE/V+
- Part No.:
- MAX16907SATE/V+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 16-WQFN Exposed Pad
- Datasheet:
-
MAX16907SATE/V+.pdf
- Description:
- IC REG BUCK ADJ/1V 3A 16TQFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,492
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Product details
Overview
MAX16907SATE/V+ 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 and ADAS power rails.
For engineers reviewing the MAX16907SATE/V+ datasheet, MAX16907SATE/V+ pinout, MAX16907SATE/V+ application, or MAX16907SATE/V+ equivalent, key selection criteria include its 42V transient tolerance, 98% max duty cycle during cold-crank, spread-spectrum EMI reduction (S-version), PGOOD monitoring, and dual-supply architecture (SUP/SUPSW) enabling stable operation under undervoltage transients.
Technical Context
The MAX16907SATE/V+ implements a constant-frequency current-mode control architecture with internal transconductance error amplifier (gm = 900µS), 80ns minimum on-time, and fast load-transient response enabled by integrator-loop optimization. Its dual-input supply (SUP for bias LDO, SUPSW for high-side switch) decouples regulation integrity from input rail collapse.
It supports resistor-programmed oscillator (RFOSC = 12kΩ → 2.2MHz), external clock synchronization (FSYNC), skip-mode light-load operation (<185mA), and thermal shutdown with 15°C hysteresis. The BIAS LDO delivers 5V ±1% at up to 100mA, powering internal circuitry and enabling VOUT-powered standby mode when 3V ≤ VOUT ≤ 5.5V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 3.5V to 36V - supports wide automotive battery range including cold-crank (≥98% duty cycle) |
| Output Current | 3A continuous - enables single-chip 5V/3A supply for microcontrollers and sensors |
| Switching Frequency | 1MHz to 2.2MHz - adjustable via RFOSC; 2.2MHz allows compact 2.2µH inductor and low-output-capacitance design |
| Quiescent Current | 30µA typical at no load - extends battery life in always-on vehicle modules |
| Output Voltage Options | 5V fixed (FB tied to BIAS) or 1V–10V adjustable (via resistive divider) - simplifies BOM for multi-rail systems |
| Protection Features | Overcurrent limit (ILX = 3.4–6A), overvoltage (110% VFB trip), thermal shutdown (+175°C), and PGOOD monitoring - ensures robust field reliability |
| Operating Temperature | –40°C to +125°C - qualified for under-hood automotive placement per AEC-Q100 stress test requirements |
Pinout & Package
MAX16907SATE/V+ is housed in a 16-pin TSSOP package with exposed pad (EP), optimized for thermal dissipation in high-power-density automotive PCBs. The exposed pad must be soldered to a large contiguous copper ground plane.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (FSYNC) | Synchronization input | Accepts external clock >10% above internal fSW; disables internal spread spectrum when active |
| 2 (FOSC) | Oscillator frequency setting | Resistor-to-GND sets fSW from 1–2.2MHz; 12kΩ yields 2.2MHz nominal |
| 3 (PGOOD) | Open-drain power-good monitor | Asserts low when VOUT drops below 92.5% VFB; deasserts above 95% VFB - enables safe power sequencing |
| 4 (OUT) | Switch-regulator output | Delivers regulated output; powers internal circuitry in standby when VOUT = 3–5.5V |
| 5 (FB) | Feedback input | Connect to BIAS for 5V fixed output; connect to resistive divider for 1–10V adjustment (VFB = 1.0V ±1.5%) |
| 6 (COMP) | Error-amplifier output | External RC compensation network stabilizes current-mode loop; critical for transient response and phase margin |
| 7 (BIAS) | 5V linear regulator output | Supplies internal logic; requires 1µF ceramic bypass to GND; powers IC when VOUT ≥ 3V in standby |
| 8 (GND) | Analog/digital ground reference | Primary signal return; EP must be connected to same ground plane but not used as sole GND path |
| 9 (BST) | Bootstrap supply for high-side driver | 0.1µF capacitor between BST and LX provides gate drive voltage for integrated MOSFET |
| 10 (SUP) | Bias supply input | Powers internal LDO; requires ≥4.7µF ceramic capacitor to GND; rated 3.5–36V |
| 11–12 (LX) | Switching node | Connects to inductor and Schottky freewheel diode cathode; handles 4A RMS current |
| 13–14 (SUPSW) | High-side switch supply | Powers integrated MOSFET; requires 0.1µF + 4.7µF decoupling to GND; rated 3.5–36V |
| 15 (EN) | Enable input | Logic-compatible enable (VEN_HI = 2V min); connects directly to KL30 or CAN transceiver INH pin |
| 16 (I.C.) | Internally connected | Must be tied to GND; not functional - internal test node |
| EP | Exposed thermal pad | Thermal interface to PCB ground plane; mandatory for 2.286W max power dissipation at TA = +70°C |
Key Features
| Feature | Design Value |
|---|---|
| 42V input transient tolerance | Withstands ISO 7637-2 Load Dump pulses without external TVS, reducing system BOM cost and board space |
| 98% maximum duty cycle | Maintains regulation during automotive cold-crank events (e.g., 4.5V battery), eliminating brownout resets |
| Spread-spectrum modulation (S-version) | ±6% triangular frequency dither at 400µs period reduces peak EMI by >10dB, easing CISPR 25 Class 5 compliance |
| 30µA standby current | Enables <100µA system sleep current when paired with low-IQ MCU, meeting OEM always-on module requirements |
| Integrated 3A/70mΩ high-side switch | Eliminates external MOSFET and gate driver, reducing solution size by >30% vs discrete buck controllers |
| Power-good (PGOOD) with 2.5% window | Provides precise sequencing signal for downstream processors and FPGAs without external comparators |
Applications
| Automotive Engine Control Unit (ECU) | Advanced Driver Assistance Systems (ADAS) Camera Module |
|---|---|
Use Scenario: Powers 3.3V FPGA, image sensor, and ISP in rear-view camera exposed to under-hood temperature cycling and load-dump transients. IC Role / Device Role / Timing Role: Primary 5V/3A point-of-load regulator; provides PGOOD for FPGA configuration sequencing and monitors cold-crank survival. Use Value: 42V transient tolerance eliminates need for upstream TVS; 30µA quiescent current meets OEM 100µA sleep budget; TSSOP-EP enables conduction cooling on metal-core PCB. |
Use Scenario: Supplies 5V to radar SoC and 3.3V to CAN transceiver in front-facing ADAS sensor mounted near grille. IC Role / Device Role / Timing Role: Dual-rail source (5V fixed + adjustable 3.3V via FB divider); synchronizes switching to system clock via FSYNC to reduce beat-frequency EMI. Use Value: 2.2MHz operation allows 2.2µH inductor and small 22µF output cap; 98% duty cycle sustains radar operation during cranking; spread spectrum suppresses narrowband emissions near 77GHz band. |
| Industrial IoT Gateway Controller | Railway Onboard Telematics Unit |
Use Scenario: Converts 24VDC train battery to 5V for ARM Cortex-A processor, Wi-Fi/BLE radio, and secure element in sealed enclosure. IC Role / Device Role / Timing Role: Main DC-DC converter with EN controlled by microcontroller; uses BIAS-powered standby to maintain RTC and wake-up logic during deep sleep. Use Value: –40°C to +125°C rating ensures operation in unventilated cabinets; 36V max input accommodates 24V nominal with 30% overvoltage; PGOOD confirms rail stability before boot. |
Use Scenario: Powers 5V/3A telemetry controller in rolling stock subjected to EN 50155 shock/vibration and 110VDC transients. IC Role / Device Role / Timing Role: High-reliability buck regulator with thermal shutdown recovery and overvoltage lockout; SUP/SUPSW isolation prevents latch-up during rail collapse. Use Value: Exposed pad and 35°C/W θJA (TQFN) enable passive cooling in conformally coated chassis; 5µA shutdown current preserves battery during depot storage. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar step-down converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM61480QPWPRQ1 | 4.5–36V input, 8A output, 2.1MHz fixed fSW, 15µA IQ, no spread spectrum, QFN-16 | Higher current, lower IQ, but lacks 42V transient rating and cold-crank duty-cycle headroom | Preferred for higher-current (>4A), lower-IQ designs where load dump protection is handled externally |
| TPS62933RTER | 3–36V input, 3A output, 1–2.2MHz adjustable fSW, 12µA IQ, integrated compensation, no PGOOD | Lower IQ and smaller solution size, but no PGOOD, no spread spectrum, and only 30V abs max input | Best for space-constrained industrial applications requiring minimal external components and no automotive qualification |
Compared with LM61480QPWPRQ1 and TPS62933RTER, the MAX16907SATE/V+ uniquely combines 42V transient tolerance, 98% cold-crank duty cycle, integrated PGOOD, and factory-enabled spread spectrum - making it the only choice for AEC-Q100-compliant 5V/3A supplies in harsh automotive environments.
Availability
MAX16907SATE/V+ is available at Aetrix Electronics and suitable for automotive ECU, ADAS camera modules, industrial IoT gateways, and railway telematics requiring stable component supply with full AEC-Q100 qualification and long-term production support.
Supply support for MAX16907SATE/V+ 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, designs precision analog, mixed-signal, and power-management ICs for automotive, industrial, and communications markets.
The MAX16907 belongs to Maxim's automotive power-management portfolio, engineered specifically for high-reliability, wide-input DC-DC conversion in engine bays and ADAS sensor nodes where transient resilience and ultra-low standby current are mandatory.
FAQ
What is the absolute maximum input voltage rating for MAX16907SATE/V+?
The MAX16907SATE/V+ has an absolute maximum input voltage of +42V on both SUP and SUPSW pins for transient conditions lasting less than 1 second, per ISO 7637-2 Pulse 5a. Continuous operation is rated from 3.5V to 36V. This 42V rating allows direct connection to automotive batteries without external TVS diodes during load-dump events, a key differentiator for under-hood applications.
Does MAX16907SATE/V+ support external frequency synchronization?
Yes, MAX16907SATE/V+ supports external clock synchronization via the FSYNC pin. An external clock signal with frequency at least 10% higher than the internal oscillator frequency (e.g., >2.42MHz for nominal 2.2MHz operation) can be applied to synchronize multiple converters and reduce beat-frequency EMI. When FSYNC is active, internal spread-spectrum modulation is disabled.
How does the MAX16907SATE/V+ achieve 30µA quiescent current in standby mode?
The MAX16907SATE/V+ achieves 30µA standby current by entering skip mode at light loads (<185mA), then powering most internal circuitry-including the bias LDO-from the regulated VOUT (when 3V ≤ VOUT ≤ 5.5V) instead of SUP/SUPSW. This architecture minimizes current draw from the battery while maintaining regulation readiness, critical for automotive always-on modules.
What package type and thermal performance does MAX16907SATE/V+ use?
MAX16907SATE/V+ is supplied in a 16-pin TSSOP package with exposed thermal pad (EP). Its junction-to-ambient thermal resistance is 38.3°C/W (multilayer board), and junction-to-case is 3°C/W. The EP must be soldered to a large contiguous copper ground plane to dissipate up to 2.09W at +70°C ambient, ensuring reliable operation in high-temperature automotive environments.
Can MAX16907SATE/V+ be configured for adjustable output voltage?
Yes, MAX16907SATE/V+ supports adjustable output from 1V to 10V using an external resistive divider from OUT to FB to GND. The feedback reference voltage is precisely 1.0V (±1.5% over temperature), enabling accurate regulation. For fixed 5V output, simply tie FB directly to the BIAS pin-eliminating external resistors and reducing component count.
MAX16907SATE/V+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 16-WQFN Exposed Pad
- Packaging:
- Tube
- Product Status:
- Active
- 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 (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-TQFN (5x5)
MAX16907SATE/V+ FAQ
1.How can I place an order for MAX16907SATE/V+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX16907SATE/V+ 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+ reliable?
The price and inventory of MAX16907SATE/V+ 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+ is usually 5 days.
3.What payment methods are accepted for MAX16907SATE/V+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX16907SATE/V+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX16907SATE/V+?
MAX16907SATE/V+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX16907SATE/V+ 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+?
For technical support, including MAX16907SATE/V+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX16907SATE/V+ requirements.
6.How does Aetrix verify that MAX16907SATE/V+ is sourced from the original manufacturer or authorized distributors?
All MAX16907SATE/V+ 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+ meets industry standards.
7.What is the process for return or replacement of MAX16907SATE/V+?
All MAX16907SATE/V+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX16907SATE/V+, 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+ part is unused and in its original packaging.
Return procedure for MAX16907SATE/V+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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