My Inquiry
My Account
Analog Devices Inc./Maxim Integrated MAX16961RAUEA/V+
- Part No.:
- MAX16961RAUEA/V+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 16-TSSOP (0.173", 4.40mm Width) Exposed Pad
- Datasheet:
-
MAX16961RAUEA/V+.pdf
- Description:
- IC REG BUCK ADJ 3A 16TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,729
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MAX16961RAUEA/V+ from Maxim Integrated is a 3A, 2.2MHz synchronous step-down DC-DC converter designed for automotive point-of-load regulation. It operates from 2.7V to 5.5V input, delivers 0.8V–3.6V adjustable output, achieves ±3% feedback accuracy, features integrated low-RDS(ON) switches, and includes open-drain power-good (PG) with 16ms delay-ideal for infotainment power rails requiring AEC-Q100-compliant stability.
For engineers reviewing the MAX16961RAUEA/V+ datasheet, MAX16961RAUEA/V+ pinout, MAX16961RAUEA/V+ application, or MAX16961RAUEA/V+ equivalent, key selection considerations include its 2.2MHz fixed-frequency PWM/skip mode operation, factory-configured SYNC-as-input functionality, -40°C to +125°C automotive temperature range, and TSSOP-EP package thermal performance (RθJA = 38.3°C/W).
Technical Context
The MAX16961RAUEA/V+ implements a current-mode synchronous buck architecture with dual LX switching nodes (LX1/LX2) paralleled for 4A continuous RMS current handling. Its internal 2.2MHz oscillator supports spread-spectrum modulation (±6%) and external synchronization via the programmable SYNC pin (1.7–2.4MHz input range).
Control logic integrates soft-start (8ms), overcurrent protection (5.1A typical limit), thermal shutdown (+165°C with 15°C hysteresis), and a precision error amplifier referenced to 800mV FB setpoint. The device uses an external resistive divider on OUTS for output voltage adjustment and provides forced-PWM/skip mode selection via the PWM pin.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.7V to 5.5V - supports wide automotive battery transients and post-regulation from 3.3V/5V rails. |
| Output Current | 3A continuous - sufficient for powering SoCs, FPGAs, and display controllers in infotainment systems. |
| Switching Frequency | 2.2MHz (±10%) - enables use of small all-ceramic capacitors and avoids AM-band interference. |
| Feedback Accuracy | ±3% over load/line/temp - ensures stable regulation across automotive operating conditions without trimming. |
| Quiescent Current | 26µA in skip mode - extends battery life during vehicle sleep modes. |
| Shutdown Current | 1µA - meets stringent automotive low-power requirements. |
| Power-Good Delay | 16ms - provides reliable system sequencing for downstream processors and memory. |
Pinout & Package
MAX16961RAUEA/V+ is packaged in a thermally enhanced 16-pin TSSOP-EP (U16E+3) with exposed pad for improved heat dissipation. RθJA = 38.3°C/W and RθJC = 3°C/W enable high-power operation in compact automotive PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| EN | Enable Input | Active-high logic control; internal 100kΩ pulldown ensures safe default-off state. |
| PWM | Mode Control Input | Forces fixed-frequency PWM (high) or light-load skip mode (low); critical for dynamic efficiency optimization. |
| SYNC | Synchronization I/O | Configured as input per Selector Guide; accepts 1.7–2.4MHz external clock for EMI reduction and multi-rail coherence. |
| OUTS | Feedback Input | Connects to external resistor divider; sets output voltage between 0.8V–3.6V with 800mV reference. |
| PG | Open-Drain Power-Good | Asserts when VOUT deviates >8% low or >10% high; requires 20kΩ pullup for system monitoring. |
| LX1 / LX2 | Switching Nodes | Paralleled internally; handle combined 4A RMS current; require low-inductance layout to minimize ringing. |
| PGND1 / PGND2 | Power Grounds | Dedicated low-impedance return paths for high-current switch loops; must be tied to GND at single point. |
| PV1 / PV2 / PV | Input Supply Pins | Separate bypass paths: PV1/PV2 require ≥4.7µF ceramic to PGND1/PGND2; PV requires ≥1µF + 10Ω RC filter. |
Key Features
| Feature | Design Value |
|---|---|
| 2.2MHz Fixed-Frequency Operation | Enables <1mm height ceramic inductors and eliminates need for electrolytic bulk capacitance. |
| Integrated High/Low-Side MOSFETs | RDS(ON) = 34mΩ (pMOS) / 25mΩ (nMOS) - reduces conduction loss and simplifies board layout vs. discrete solutions. |
| Programmable Spread Spectrum | ±6% frequency dithering - lowers peak radiated emissions by >10dB without sacrificing regulation performance. |
| 8ms Internal Soft-Start | Prevents inrush current surges into large output capacitors - eliminates need for external soft-start circuitry. |
| Automotive Temperature Range | -40°C to +125°C ambient - qualified per AEC-Q100 Grade 0 requirements for under-hood and dashboard applications. |
Applications
| Automotive Infotainment Power | Industrial Human-Machine Interface |
|---|---|
Use Scenario: Powers application processors and DDR memory in head-unit systems subject to cold-crank (4.5V) and load-dump (18V) transients. IC Role / Device Role / Timing Role: Primary synchronous buck regulator delivering 1.1V/3A to SoC core rail with tight transient response. Use Value: 2.2MHz switching and integrated MOSFETs maintain <50mV output deviation during 0→3A load steps, ensuring processor stability. | Use Scenario: Supplies 3.3V/2.5A to ARM-based PLC controllers operating in extended industrial temperature environments. IC Role / Device Role / Timing Role: Post-regulator converting 5V intermediate bus to precise 3.3V logic rail with power-good sequencing. Use Value: 16ms PG delay and ±3% accuracy guarantee clean reset assertion and eliminate brown-out resets during thermal cycling. |
| ADAS Camera Module Supply | Automotive Telematics Unit |
Use Scenario: Generates 1.8V/2A for image signal processors in rear-view camera modules mounted near exhaust systems. IC Role / Device Role / Timing Role: Compact, thermally robust DC-DC converter with exposed-pad TSSOP package for high-temperature mounting. Use Value: RθJC = 3°C/W and -40°C to +125°C rating sustain full 3A output at 105°C board temperature without derating. | Use Scenario: Provides 2.5V/3A to cellular modem and GNSS receiver in telematics control units with strict EMI limits. IC Role / Device Role / Timing Role: EMI-optimized buck converter using spread-spectrum and SYNC input to align switching with other rails. Use Value: ±6% spread spectrum reduces 2.2MHz harmonic peaks below CISPR 25 Class 5 limits without shielding. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous step-down converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM61480QRTWRQ1 | 3.6A max output, 2.1MHz switching, integrated compensation, no SYNC input | Requires external compensation network; lacks programmable synchronization | Preferred when simplified design flow outweighs need for multi-rail EMI coordination |
| TPS62933QPWRRQ1 | 3A output, 2.25MHz, 1.2µA shutdown current, no spread spectrum | Lower quiescent current but no EMI-reduction features; different pinout | Selected for ultra-low-power always-on subsystems where EMI is managed elsewhere |
Compared with LM61480QRTWRQ1 and TPS62933QPWRRQ1, the MAX16961RAUEA/V+ uniquely combines factory-programmed SYNC-as-input, ±6% spread spectrum, and dual-LX paralleling-enabling tighter EMI control and higher current density in space-constrained automotive modules.
Availability
MAX16961RAUEA/V+ is available at Aetrix Electronics and suitable for automotive infotainment, ADAS camera modules, and telematics units requiring stable component supply across extended temperature and long product lifecycles.
Supply support for MAX16961RAUEA/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 high-performance analog and mixed-signal ICs for automotive, industrial, and communications markets.
The MAX16961RAUEA/V+ belongs to Maxim's automotive-grade power management portfolio, engineered specifically for demanding point-of-load regulation in infotainment and ADAS systems with stringent EMI, thermal, and reliability requirements.
FAQ
What is the maximum output current capability of the MAX16961RAUEA/V+?
The MAX16961RAUEA/V+ delivers up to 3A continuous output current under specified thermal conditions. Its dual-LX architecture supports 4A RMS current handling, and the internal current-limit threshold is 5.1A typical. Derating applies above +70°C ambient per the 26.1mW/°C thermal derating curve for the TSSOP-EP package.
Does the MAX16961RAUEA/V+ support external synchronization?
Yes, the MAX16961RAUEA/V+ supports external synchronization via its SYNC pin, which is factory-configured as an input per the Selector Guide. It accepts a 1.7MHz to 2.4MHz external clock signal with 50% duty cycle, enabling precise timing alignment across multiple rails to reduce beat frequencies and peak EMI.
What is the function of the OUTS pin on the MAX16961RAUEA/V+?
The OUTS pin on the MAX16961RAUEA/V+ serves as the feedback input for adjustable-output configurations. It connects to the center tap of an external resistive divider between VOUT and GND, referencing an internal 800mV precision bandgap to set output voltages from 0.8V to 3.6V. No connection is required for factory-preset versions.
How does the MAX16961RAUEA/V+ manage electromagnetic interference (EMI)?
The MAX16961RAUEA/V+ reduces EMI through three integrated mechanisms: 2.2MHz operation (above AM radio band), optional ±6% spread-spectrum frequency modulation, and programmable SYNC input for deterministic multi-rail phase alignment-all without requiring external filters or shielding in most automotive layouts.
What thermal performance can be expected from the MAX16961RAUEA/V+ in its TSSOP-EP package?
The MAX16961RAUEA/V+ in the 16-pin TSSOP-EP package has a junction-to-ambient thermal resistance (RθJA) of 38.3°C/W and junction-to-case (RθJC) of 3°C/W on a standard 4-layer board. With proper PCB copper area and vias under the exposed pad, it sustains 3A output continuously at +105°C board temperature.
MAX16961RAUEA/V+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 16-TSSOP (0.173", 4.40mm Width) Exposed Pad
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Adjustable
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 2.7V
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 0.8V
- Voltage - Output (Max):
- 3.6V
- Current - Output:
- 3A
- Frequency - Switching:
- 2.2MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-TSSOP-EP
MAX16961RAUEA/V+ FAQ
1.How can I place an order for MAX16961RAUEA/V+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX16961RAUEA/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 MAX16961RAUEA/V+ reliable?
The price and inventory of MAX16961RAUEA/V+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX16961RAUEA/V+ is usually 5 days.
3.What payment methods are accepted for MAX16961RAUEA/V+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX16961RAUEA/V+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX16961RAUEA/V+?
MAX16961RAUEA/V+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX16961RAUEA/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 MAX16961RAUEA/V+?
For technical support, including MAX16961RAUEA/V+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX16961RAUEA/V+ requirements.
6.How does Aetrix verify that MAX16961RAUEA/V+ is sourced from the original manufacturer or authorized distributors?
All MAX16961RAUEA/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 MAX16961RAUEA/V+ meets industry standards.
7.What is the process for return or replacement of MAX16961RAUEA/V+?
All MAX16961RAUEA/V+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX16961RAUEA/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 MAX16961RAUEA/V+ part is unused and in its original packaging.
Return procedure for MAX16961RAUEA/V+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX16961RAUEA/V+ Tags
-
TPS562201DDCR
Texas Instruments
-
MC34063ABD-TR
STMicroelectronics
-
TPS561201DDCR
Texas Instruments
-
MC33063ADR
Texas Instruments
-
MC34063ADR
Texas Instruments
-
TPS560200DBVR
Texas Instruments
-
AP3012KTR-G1
Diodes Incorporated
-
TLV61048DBVR
Texas Instruments
-
AZ34063UMTR-G1
Diodes Incorporated
-
TPS562200DDCR
Texas Instruments
-
AP62300TWU-7
Diodes Incorporated
-
MC34063EBD-TR
STMicroelectronics
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
