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Analog Devices Inc./Maxim Integrated MAX16907SAUE/V+CMD
- Part No.:
- MAX16907SAUE/V+CMD
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 16-TSSOP (0.173", 4.40mm Width) Exposed Pad
- Datasheet:
-
MAX16907SAUE/V+CMD.pdf
- Description:
- IC REG BUCK ADJ/1V 3A 16TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,904
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Product details
Overview
MAX16907SAUE/V+CMD 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 3A continuous output in a 16-pin TSSOP package with exposed pad, optimized for cold-crank automotive power rails and industrial high-voltage point-of-load regulation.
For engineers reviewing the MAX16907SAUE/V+CMD datasheet, MAX16907SAUE/V+CMD pinout, MAX16907SAUE/V+CMD application, or MAX16907SAUE/V+CMD equivalent, key selection criteria include its 30µA standby current, 42V transient tolerance, 98% max duty cycle during undervoltage events, spread-spectrum EMI reduction (S-version), and power-good monitoring for supply sequencing.
Technical Context
The MAX16907SAUE/V+CMD employs constant-frequency current-mode control with internal transconductance error amplifier (gm = 900µS), 80ns minimum on-time, and fast load-transient response enabled by integrator architecture enhancements. Its dual-supply inputs (SUP and SUPSW) decouple bias and switch power paths, enabling stable operation down to 3.5V input while maintaining 98% duty cycle during cold-crank transients.
It supports resistor-programmable switching frequency (1MHz–2.2MHz via FOSC pin), external clock synchronization (FSYNC), skip-mode light-load operation (<185mA), and integrated protections including overcurrent limit (3.4A–6A), overvoltage trip (105–115% VFB), thermal shutdown (+175°C), and automatic recovery. The BIAS LDO (5V ±1%) powers internal circuitry and enables VOUT-powered standby mode at 30µA.
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 (≤42V transient) |
| Output Current | 3A continuous - sufficient for microcontroller cores, CAN transceivers, and sensor clusters in automotive ECUs |
| Switching Frequency | Up to 2.2MHz - enables compact 2.2µH inductors and reduces board area vs. lower-frequency buck converters |
| Quiescent Current | 30µA in standby - extends battery life in always-on vehicle modules (e.g., telematics, alarm systems) |
| Output Voltage Options | 5V fixed (FB tied to BIAS) or 1V–10V adjustable - eliminates external resistors for 5V rail; supports diverse SoC I/O and core voltages |
| Protection Features | Overcurrent, overvoltage (105–115% VFB), thermal shutdown (+175°C), and short-circuit - enables robust field operation without external supervision |
| Operating Temperature | −40°C to +125°C - qualified for under-hood automotive placement and industrial control environments |
Pinout & Package
MAX16907SAUE/V+CMD is housed in a 16-pin TSSOP package (4.4mm × 5mm) with exposed thermal pad (EP), rated for 2088.8mW continuous power dissipation at +70°C ambient (derates 26.1mW/°C above).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (FSYNC) | Synchronization input | Accepts external clock ≥10% above internal frequency; disables internal spread spectrum when active |
| 2 (FOSC) | Frequency-setting input | Connects to GND via resistor (e.g., 12kΩ for 2.2MHz); sets oscillator frequency from 1MHz–2.2MHz |
| 3 (PGOOD) | Open-drain power-good monitor | Asserts low when VOUT drops below 92.5% VFB; deasserts high above 95% VFB - enables safe power sequencing |
| 4 (OUT) | Switch regulator output | Delivers regulated 5V or adjustable output; powers internal circuitry in standby when VOUT = 3V–5.5V |
| 5 (FB) | Feedback input | Connect to BIAS for 5V fixed output; connect to resistive divider for 1V–10V adjustment (VFB = 1.0V ±1.5%) |
| 6 (COMP) | Error amplifier output | External RC compensation network connects here to stabilize current-mode loop (gm = 900µS) |
| 7 (BIAS) | Internal 5V LDO output | Bypassed with 1µF ceramic capacitor; powers internal logic and enables low-IQ standby mode |
| 8 (GND) | Analog/digital ground reference | Primary signal return; EP must be connected to large-area copper plane but not sole GND path |
| 9 (BST) | Bootstrap supply for high-side gate driver | Requires 0.1µF capacitor between BST and LX to sustain high-side FET conduction |
| 10 (SUP) | Main supply input for bias circuitry | Accepts 3.5V–36V; requires ≥4.7µF ceramic decoupling to GND |
| 11–12 (LX) | Switch node | Connects to inductor and Schottky freewheeling diode anode; handles peak currents up to 4A RMS |
| 13–14 (SUPSW) | High-side switch supply input | Separate 3.5V–36V input for internal FET driver; requires 0.1µF + 4.7µF decoupling to GND |
| 15 (EN) | Enable input | Logic-compatible with 3.3V–36V; high enables operation, low forces 5µA shutdown current |
| 16 (I.C.) | Internally connected | Must be tied to GND; not functional as signal pin |
| EP | Exposed thermal pad | Connected to GND plane for thermal dissipation; junction-to-ambient θJA = 38.3°C/W (TSSOP) |
Key Features
| Feature | Design Value |
|---|---|
| Wide input voltage range | 3.5V–36V with 42V transient tolerance - eliminates need for upstream pre-regulator in 12V/24V automotive systems |
| High duty cycle during undervoltage | 98% max duty cycle at 2.2MHz - maintains regulation during cold-crank (e.g., 4.5V battery) without dropout |
| Low quiescent current | 30µA standby current - meets ISO 16750-2 "parking mode" requirements for <100µA system sleep current |
| Integrated high-side switch | 70mΩ RDS(on) typ at 1A - reduces external component count and PCB footprint vs. controller-only solutions |
| Spread-spectrum modulation | ±6% frequency dithering at 400µs period - lowers peak EMI emissions without external filtering components |
| Power-good monitoring | Programmable PGOOD threshold (92.5–97% VFB) with 10–60µs debounce - simplifies multi-rail sequencing in ADAS and infotainment systems |
Applications
| Automotive Body Control Module (BCM) | Industrial PLC Power Supply |
|---|---|
|
Use Scenario: Regulating 5V rail for microcontroller, CAN transceiver, and door-lock actuators in 12V vehicle electrical architecture. IC Role / Device Role / Timing Role: Primary buck converter supplying core logic and communication interfaces with cold-crank resilience. Use Value: 30µA standby current extends battery life during vehicle parking; 42V transient tolerance prevents reset during alternator load dump. |
Use Scenario: Generating stable 5V supply for programmable logic controllers operating from unregulated 24V industrial bus. IC Role / Device Role / Timing Role: High-efficiency point-of-load regulator delivering 3A to FPGA I/O banks and real-time Ethernet PHYs. Use Value: 2.2MHz switching enables small 2.2µH inductor and low-profile design; 98% duty cycle sustains output during brownout conditions. |
| Automotive Infotainment Head Unit | Telematics Control Unit (TCU) |
|
Use Scenario: Providing clean 5V supply to display interface, audio codec, and USB host controller in dashboard multimedia system. IC Role / Device Role / Timing Role: Secondary buck stage after front-end 36V input filter, with PGOOD used for safe processor boot sequencing. Use Value: Spread-spectrum EMI reduction meets CISPR-25 Class 5 radiated emissions limits; 125°C operation supports under-dash mounting. |
Use Scenario: Powering LTE modem, GNSS receiver, and secure MCU in always-connected vehicle telematics gateway. IC Role / Device Role / Timing Role: Always-on buck regulator with ultra-low IQ and wake-up capability via EN pin driven by CAN bus activity. Use Value: 5µA shutdown current minimizes parasitic drain; 3.5V start-up enables operation during deep battery discharge scenarios. |
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 | 4.5V–36V input, 8A output, 2.1MHz fixed frequency, no spread spectrum, 15µA IQ | Higher current capacity; lacks cold-crank 98% duty cycle and BIAS LDO for VOUT-powered standby | Select LM61480RQR only if >3A output or lower IQ is critical; MAX16907SAUE/V+CMD preferred for automotive cold-crank compliance |
| TPS543B20RJNR | 4.5V–18V input, 3A output, 1MHz–2.2MHz adjustable, 12µA IQ, no 42V transient rating | Narrower input range excludes 24V industrial use; no integrated BIAS LDO or dedicated SUP/SUPSW separation | Choose TPS543B20RJNR for cost-sensitive 12V-only designs; MAX16907SAUE/V+CMD required for 36V-rated or cold-crank applications |
Compared with LM61480RQR and TPS543B20RJNR, MAX16907SAUE/V+CMD uniquely combines 3.5V start-up, 42V transient tolerance, 98% cold-crank duty cycle, and VOUT-powered 30µA standby-making it the only option qualified for full-automotive ASIL-B auxiliary power rails without external supervision.
Availability
MAX16907SAUE/V+CMD is available at Aetrix Electronics and suitable for automotive body control modules, industrial PLCs, infotainment head units, and telematics control units requiring stable component supply across extended temperature and voltage ranges.
Supply support for MAX16907SAUE/V+CMD 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 product line delivers high-reliability, AEC-Q100-qualified DC-DC converters targeting automotive power rails where cold-crank resilience, low IQ, and EMI control are mandatory.
FAQ
What is the minimum input voltage required for MAX16907SAUE/V+CMD to start switching?
The MAX16907SAUE/V+CMD begins switching when the SUP input reaches 3.5V, enabling reliable operation during automotive cold-crank events where battery voltage may dip to 3.2V–3.8V. This start-up threshold is guaranteed across −40°C to +125°C and is independent of the SUPSW rail, which can remain lower during undervoltage transients. The device maintains regulation using up to 98% duty cycle until the input recovers.
Does MAX16907SAUE/V+CMD support both fixed 5V and adjustable output configurations?
Yes, MAX16907SAUE/V+CMD supports both configurations. For fixed 5V output, connect the FB pin directly to the BIAS pin; for adjustable output from 1V to 10V, connect FB to a resistive divider between OUT and GND, using VFB = 1.0V ±1.5% as the reference. The internal feedback amplifier ensures ±0.5% load regulation and ±0.02%/V line regulation across the full input range.
How does the spread-spectrum feature work in MAX16907SAUE/V+CMD?
The spread-spectrum feature in MAX16907SAUE/V+CMD modulates the switching frequency ±6% around the nominal value (e.g., 2.2MHz) using a 400µs triangular waveform - ramping up over 200µs and down over 200µs. This dithering reduces peak EMI emissions without altering average frequency or efficiency. The feature is factory-enabled in the "S" version (MAX16907SAUE/V+CMD) and automatically disables when FSYNC is active.
What thermal performance can be expected from MAX16907SAUE/V+CMD in TSSOP package?
In its 16-pin TSSOP package with exposed pad, MAX16907SAUE/V+CMD achieves a junction-to-ambient thermal resistance (θJA) of 38.3°C/W on a standard 4-layer JEDEC board. At +70°C ambient, it supports 2088.8mW continuous power dissipation before derating begins. Proper PCB layout - including ≥200mm² copper pour connected to EP and multiple thermal vias - is essential to maintain ≤125°C junction temperature at full 3A load.
Can MAX16907SAUE/V+CMD operate with only one input voltage source?
Yes, MAX16907SAUE/V+CMD can operate with a single input source by connecting both SUP and SUPSW pins to the same voltage rail (e.g., 12V or 24V). While the dual-input architecture optimizes efficiency and cold-crank behavior when rails are separated, tying them together is fully supported and commonly used in industrial applications where only one supply is available. No performance degradation occurs in this configuration.
MAX16907SAUE/V+CMD Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 16-TSSOP (0.173", 4.40mm Width) Exposed Pad
- Packaging:
- Tube
- 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+CMD FAQ
1.How can I place an order for MAX16907SAUE/V+CMD through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX16907SAUE/V+CMD 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+CMD reliable?
The price and inventory of MAX16907SAUE/V+CMD 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+CMD is usually 5 days.
3.What payment methods are accepted for MAX16907SAUE/V+CMD?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX16907SAUE/V+CMD transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX16907SAUE/V+CMD?
MAX16907SAUE/V+CMD orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX16907SAUE/V+CMD 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+CMD?
For technical support, including MAX16907SAUE/V+CMD datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX16907SAUE/V+CMD requirements.
6.How does Aetrix verify that MAX16907SAUE/V+CMD is sourced from the original manufacturer or authorized distributors?
All MAX16907SAUE/V+CMD 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+CMD meets industry standards.
7.What is the process for return or replacement of MAX16907SAUE/V+CMD?
All MAX16907SAUE/V+CMD units undergo pre-shipment inspection (PSI). If there is an issue with MAX16907SAUE/V+CMD, 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+CMD part is unused and in its original packaging.
Return procedure for MAX16907SAUE/V+CMD:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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