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Analog Devices Inc./Maxim Integrated MAX16907SAUE/V+CMF
- Part No.:
- MAX16907SAUE/V+CMF
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 16-TSSOP (0.173", 4.40mm Width) Exposed Pad
- Datasheet:
-
MAX16907SAUE/V+CMF.pdf
- Description:
- IC REG BUCK ADJ/1V 3A 16TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,182
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Product details
Overview
MAX16907SAUE/V+CMF from Maxim Integrated is a 3A, current-mode, automotive-grade step-down DC-DC converter with integrated 70mΩ high-side MOSFET, 3.5V–36V input range, 5V fixed or 1V–10V adjustable output, and 2.2MHz switching frequency. It delivers stable 5V/3A power under cold-crank undervoltage transients (98% duty cycle) and supports spread-spectrum EMI reduction. Used in automotive infotainment power rails and industrial high-voltage PoL supplies.
For engineers reviewing the MAX16907SAUE/V+CMF datasheet, MAX16907SAUE/V+CMF pinout, MAX16907SAUE/V+CMF application, or MAX16907SAUE/V+CMF equivalent, key selection criteria include 42V transient tolerance, 30µA standby current, 80ns minimum on-time for high VIN/VOUT ratios, PGOOD monitoring for sequencing, and TSSOP-16 package compatibility with exposed pad thermal management.
Technical Context
The MAX16907SAUE/V+CMF implements constant-frequency current-mode control with internal slope compensation and fast load-transient response via integrator architecture enhancements. Its dual-supply inputs (SUP and SUPSW) enable independent biasing and high-side switch drive during 3.5V cold-crank events.
It features programmable 1MHz–2.2MHz oscillator (via FOSC resistor), external clock synchronization (FSYNC), skip mode for light-load efficiency, and integrated 5V BIAS LDO powering internal circuitry. Protection includes overcurrent limit (4.1A typ), overvoltage lockout (110% VFB), thermal shutdown (+175°C), and automatic recovery.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 3.5V to 36V - supports automotive battery variation including cold-crank (≥98% duty cycle at low VIN) |
| Output Current | 3A continuous - enables single-chip 5V/3A PoL conversion without external pass devices |
| Switching Frequency | 2.2MHz (typ, RFOSC = 12kΩ) - allows compact 2.2µH inductor and reduces EMI fundamental frequency |
| Quiescent Current | 30µA (standby, no load, VOUT = 5V) - extends battery life in always-on automotive modules |
| High-Side RDS(on) | 70mΩ (typ) - minimizes conduction loss at 3A, enabling >90% efficiency at mid-load |
| PGOOD Threshold | 92.5%–97% VFB window - provides precise power-good signaling for safe system sequencing |
| Thermal Shutdown | +175°C (typ), +15°C hysteresis - protects against sustained overload while allowing recovery |
Pinout & Package
MAX16907SAUE/V+CMF is housed in a 16-pin TSSOP package with exposed pad (EP), optimized for automotive thermal performance and PCB layout simplicity. The exposed pad must be soldered to a large contiguous copper ground plane for effective heat dissipation (θJA = 38.3°C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (FSYNC) | External clock sync input | Accepts 10% higher-frequency clock for EMI reduction or multi-rail synchronization; connect to GND for internal oscillator |
| 2 (FOSC) | Frequency-setting resistor node | Connects to GND via resistor (e.g., 12kΩ for 2.2MHz); sets oscillator frequency across full 1–2.2MHz range |
| 3 (PGOOD) | Open-drain power-good output | Asserts low when VOUT drops below 92.5% VFB; deasserts high above 95% VFB - enables safe processor reset sequencing |
| 4 (OUT) | Switch-regulator output node | Delivers regulated 5V (fixed) or adjustable output; powers internal circuitry when VOUT = 3–5V in standby mode |
| 5 (FB) | Feedback voltage input | Connect to BIAS for 5V fixed output; connect resistive divider (VOUT→FB→GND) for 1–10V adjustment (VFB = 1.0V) |
| 6 (COMP) | Error amplifier output | Connect RC network to GND for loop compensation; sets phase margin and transient response per application requirements |
| 7 (BIAS) | Integrated 5V LDO output | Powers internal logic and gate drivers; bypass with 1µF ceramic capacitor to GND for stability |
| 8 (GND) | Analog/digital ground reference | Main signal return path; connects to EP and all decoupling capacitors for low-noise operation |
| 9 (BST) | Bootstrap supply for high-side driver | Requires 0.1µF capacitor between BST and LX to sustain gate drive during high-side conduction |
| 10 (SUP) | Main supply input (bias regulator) | Accepts 3.5–36V; powers internal LDO; requires ≥4.7µF ceramic capacitor to GND |
| 11–12 (LX) | Switching node | Connects to inductor and Schottky diode cathode; high dv/dt node requiring short, low-inductance routing |
| 13–14 (SUPSW) | High-side switch supply input | Separate 3.5–36V input for internal MOSFET driver; requires 0.1µF + 4.7µF decoupling to GND |
| 15 (EN) | Enable input (3.3V-compatible) | Logic-high (>2V) enables regulation; logic-low (<0.9V) enters 5µA shutdown; compatible with KL30/KL15 automotive signals |
| 16 (I.C.) | Internally connected | Must be tied to GND; not functional - serves internal test or trimming purpose |
| EP | Exposed thermal pad | Primary thermal path to PCB; must be soldered to solid ground plane - not used as sole GND connection |
Key Features
| Feature | Design Value |
|---|---|
| 42V Input Transient Tolerance | Withstands ISO 7637-2 Load Dump pulses up to 42V for <1s without latch-up or damage |
| 80ns Minimum On-Time | Enables stable 5V output from 36V input at 2.2MHz (D ≈ 14%), critical for high VIN/VOUT automotive designs |
| Skip Mode Operation | Reduces quiescent current to 30µA at light loads (<185mA), extending battery runtime in always-on ECUs |
| Spread Spectrum (Factory-Enabled) | ±6% triangular modulation of 2.2MHz base frequency reduces peak EMI by >10dB without external components |
| Power-Good Monitor with Debounce | 10–60µs programmable debounce prevents false PGOOD toggling during line/load transients |
| Automotive Temperature Range | Guaranteed operation from –40°C to +125°C ambient, with junction limit at +150°C |
Applications
| Automotive Infotainment Power Supply | Industrial High-Voltage PoL Converter |
|---|---|
|
Use Scenario: Powers SoC, display controller, and audio codec in head-unit systems with 12V/24V battery input and cold-crank immunity. IC Role / Device Role / Timing Role: Primary 5V/3A buck regulator delivering clean, sequenced power with PGOOD assertion before SoC boot. Use Value: 98% duty cycle maintains regulation during 6V cold-crank; 30µA standby preserves battery during ignition-off; spread spectrum meets CISPR 25 Class 5 EMI limits. |
Use Scenario: Provides isolated 5V rail for PLC I/O modules operating from 24V industrial bus with surge immunity. IC Role / Device Role / Timing Role: Main DC-DC stage converting unregulated 24V to stable 5V, synchronized to system clock via FSYNC to avoid beat frequencies. Use Value: 42V transient tolerance withstands IEC 61000-4-5 surges; TSSOP-EP package enables convection cooling in sealed enclosures; 2.2MHz switching minimizes filter size. |
| ADAS Camera Module Power | Telematics Control Unit (TCU) Core Supply |
|
Use Scenario: Supplies image sensor and ISP in rear-view camera with strict EMI and thermal constraints in compact housing. IC Role / Device Role / Timing Role: Single-chip 5V/2A supply with fast transient response to handle burst-mode sensor readout current spikes. Use Value: 80ns min-on-time ensures regulation at 12V input → 5V output; skip mode cuts idle current to 30µA; spread spectrum lowers radiated emissions near RF antennas. |
Use Scenario: Generates 5V core power for LTE modem, GPS, and microcontroller in vehicle telematics gateway with always-on capability. IC Role / Device Role / Timing Role: Always-on buck converter with EN controlled by CAN wake-up signal; PGOOD enables MCU reset after stable rail establishment. Use Value: 5µA shutdown current meets ISO 16750-2 quiescent drain limits; –40°C to +125°C rating ensures reliability in engine bay mounting; BIAS LDO simplifies auxiliary rail generation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar step-down converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM61480QRTWRQ1 | 3.5V–36V input, 4A output, 2.1MHz max, 15µA IQ, no integrated BIAS LDO, requires external bootstrap capacitor | Lacks integrated 5V BIAS rail; needs external LDO for biasing; better light-load efficiency but higher BOM count | Choose when lowest quiescent current (15µA) is critical and external biasing is acceptable |
| TPS62933-Q1 | 3V–36V input, 3A output, 2.2MHz fixed, 12µA IQ, integrated 5V BIAS, no FSYNC or spread spectrum | No frequency synchronization or EMI reduction features; simpler control but less flexible for noise-sensitive systems | Choose for cost-sensitive designs where fixed 2.2MHz and minimal external components outweigh need for sync/spread spectrum |
Compared with LM61480QRTWRQ1 and TPS62933-Q1, the MAX16907SAUE/V+CMF uniquely combines integrated BIAS LDO, FSYNC input, factory-enabled spread spectrum, and 30µA standby - making it optimal for automotive systems requiring robust sequencing, EMI compliance, and simplified biasing.
Availability
MAX16907SAUE/V+CMF is available at Aetrix Electronics and suitable for automotive infotainment, ADAS camera modules, and industrial PLC power supplies requiring stable component supply with AEC-Q100 qualification and long-term production support.
Supply support for MAX16907SAUE/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 MAX16907SAUE/V+CMF belongs to Maxim's automotive power management portfolio, designed specifically for harsh-environment DC-DC conversion in vehicles - emphasizing cold-crank resilience, EMI control, and AEC-Q100 reliability.
FAQ
What is the maximum input voltage the MAX16907SAUE/V+CMF can withstand during load dump events?
The MAX16907SAUE/V+CMF supports 42V input transients for durations under 1 second, meeting ISO 7637-2 Pulse 5a requirements for automotive load dump protection. This rating applies to both SUP and SUPSW pins, ensuring robustness without external TVS clamping in many implementations. The device remains functional and does not latch up during such events, recovering automatically once voltage returns within normal operating range. This capability is verified across the full –40°C to +125°C temperature range.
Does the MAX16907SAUE/V+CMF require external components to set its 5V output voltage?
No, the MAX16907SAUE/V+CMF achieves a precise 5V fixed output by connecting the FB pin directly to the BIAS pin - eliminating external feedback resistors and reducing BOM count and layout area. This configuration leverages the internal 1.0V reference and trimmed BIAS regulator (4.7V–5.3V) to deliver 4.925V–5.075V output with ±1.5% total accuracy over temperature and line/load conditions. External resistive dividers are only needed for adjustable outputs between 1V and 10V.
How does the MAX16907SAUE/V+CMF manage thermal performance in a TSSOP-16 package?
The MAX16907SAUE/V+CMF uses an exposed pad (EP) in its TSSOP-16 package to achieve θJA = 38.3°C/W on a 4-layer JEDEC board. Effective thermal management requires soldering the EP to a large, low-thermal-resistance copper ground plane - not using it as the sole GND connection. The device includes thermal shutdown at +175°C (typ) with +15°C hysteresis, enabling automatic recovery after cooling. Derating begins above +70°C ambient (26.1mW/°C), supporting continuous 3A operation up to +105°C ambient with proper PCB layout.
Can the MAX16907SAUE/V+CMF synchronize to an external clock, and what are the requirements?
Yes, the MAX16907SAUE/V+CMF accepts synchronization via the FSYNC pin. The external clock frequency must exceed the internal oscillator frequency by at least 10% (e.g., >2.42MHz for nominal 2.2MHz operation) and exhibit clean edges with VIH ≥ 1.4V and VIL ≤ 0.4V. Acquisition occurs within one clock cycle. When synchronized, internal spread spectrum is disabled - but externally generated spread-spectrum clocks are accepted. This feature enables EMI reduction across multiple rails and avoids beat frequencies in complex power systems.
What protection features are integrated into the MAX16907SAUE/V+CMF?
The MAX16907SAUE/V+CMF integrates overcurrent limit (3.4–6A typ), output overvoltage protection (trip at 105–115% VFB), thermal shutdown (+175°C), and short-circuit protection with automatic recovery. It also includes BIAS LDO undervoltage lockout (2.9–3.3V) and EN input hysteresis (0.2V) for noise immunity. During overload, it cycles through 16ms shutdown and soft-start reinitiation. All protections operate across the full –40°C to +125°C range without external components, ensuring fail-safe behavior in automotive and industrial environments.
MAX16907SAUE/V+CMF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 16-TSSOP (0.173", 4.40mm Width) 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-TSSOP-EP
MAX16907SAUE/V+CMF FAQ
1.How can I place an order for MAX16907SAUE/V+CMF through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX16907SAUE/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 MAX16907SAUE/V+CMF reliable?
The price and inventory of MAX16907SAUE/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 MAX16907SAUE/V+CMF is usually 5 days.
3.What payment methods are accepted for MAX16907SAUE/V+CMF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX16907SAUE/V+CMF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX16907SAUE/V+CMF?
MAX16907SAUE/V+CMF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX16907SAUE/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 MAX16907SAUE/V+CMF?
For technical support, including MAX16907SAUE/V+CMF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX16907SAUE/V+CMF requirements.
6.How does Aetrix verify that MAX16907SAUE/V+CMF is sourced from the original manufacturer or authorized distributors?
All MAX16907SAUE/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 MAX16907SAUE/V+CMF meets industry standards.
7.What is the process for return or replacement of MAX16907SAUE/V+CMF?
All MAX16907SAUE/V+CMF units undergo pre-shipment inspection (PSI). If there is an issue with MAX16907SAUE/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 MAX16907SAUE/V+CMF part is unused and in its original packaging.
Return procedure for MAX16907SAUE/V+CMF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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