MAX16963

PRODUCTION

Dual 2.2MHz, Low-Voltage Step-Down DC-DC Converter

Automotive-Grade Dual DC-DC Converter Offers Two 1.5A Rails in a Small Footprint

Data Sheet (Rev. 5) Product Selection Table

Part Models: 12
1ku List Price: Starting From $1.61

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Overview

Small Size Components
- Dual 2.2MHz DC-DC Converter
Ideal for Point-of-Load Applications
- Up to 1.5A Output Current
- Adjustable Output Voltage: 0.8V to 3.6V
- 2.7V to 5.5V Operating Supply voltage
High Efficiency at Light Load
- Skip Mode with 36µA Quiescent Current
Low Electromagnetic Emission
- Programmable SYNC I/O Pin
- Spread Spectrum
Low Power Mode Saves Energy
- Independent Enable Inputs
Output Rail Monitoring Helps Prevent System Failure
- Open-Drain Power-Good Output
Limits Inrush Current During Startup
- Built-In Soft-Start Timer
Overtemperature and Short-Circuit Protections
4mm × 4mm, 16-Pin TQFN and 16-Pin TSSOP Packages
-40°C to 125°C Operating Temperature Range

The MAX16963 is a high-efficiency, dual synchronous step-down converter that operates with a 2.7V to 5.5V input voltage range and provides a 0.8V to 3.6V output voltage range. The device delivers up to 1.5A of load current per output. The low input/output voltage range and the ability to provide high output currents make this device ideal for on-board point-of-load and postregulation applications. The device achieves ±3% output error over load, line, and temperature ranges.

The device features a 2.2MHz fixed-frequency PWM mode for better noise immunity and load transient response, and a skip mode for increased efficiency during light-load operation. The 2.2MHz frequency operation allows for an all-ceramic capacitor design and small-size external components. An optional spread-spectrum frequency modulation minimizes radiated electromagnetic emissions due to the switching frequency.

On-board low R_DSON switches help minimize efficiency losses at heavy loads and reduce critical/parasitic inductance, making the layout a much simpler task with respect to discrete solutions. Following a simple layout and footprint ensures first-pass success in new designs.

The device is offered in a factory-preset output voltage or adjustable output-voltage version (see the Selector Guide in the full data sheet for options). Factory-preset output-voltage versions allow customers to achieve ±3% output-voltage accuracy without using external resistors, while the adjustable output-voltage version provides the flexibility to set the output voltage to any desired value between 0.8V and 3.6V using an external resistive divider.

Additional features include 8ms fixed soft-start, 16ms fixed power-good delay, overcurrent, and overtemperature protections.

The MAX16963 is available in thermally enhanced 16-pin TSSOP-EP and 4mm × 4mm, 16-pin TQFN-EP packages, and is specified for operation over the -40°C to +125°C automotive temperature range.

Applications

Automotive Postregulation
Industrial/Military
Point-of-Load Applications

Part Models: 12
1ku List Price: Starting From $1.61

Documentation

Data Sheet 1

MAX16963: Dual 2.2MHz, Low-Voltage Step-Down DC-DC Converter Data Sheet (Rev.5) 07/15/2015

Reliability Data 1

MAX16963 Reliability Data 01/12/2023

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.

Part Model	Pin/Package Drawing	Documentation	CAD Symbols, Footprints, and 3D Models
MAX16963RATEA/V+	16-LFCSP-4X4X0.75	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
MAX16963RATEA/V+T	16-LFCSP-4X4X0.75	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
MAX16963SATEA/V+	16-LFCSP-4X4X0.75	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
MAX16963SATEA/V+T	16-LFCSP-4X4X0.75	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
MAX16963SATEC+	16-LFCSP-4X4X0.75	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
MAX16963SATEC+T	16-LFCSP-4X4X0.75	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
MAX16963SATEC/V+	16-LFCSP-4X4X0.75	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
MAX16963SATEC/V+T	16-LFCSP-4X4X0.75	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
MAX16963SATEF/V+	16-LFCSP-4X4X0.75	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
MAX16963SATEF/V+T	16-LFCSP-4X4X0.75	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
MAX16963SAUEA/V+	16-TSSOP_4.4_EP-4.4_MM	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
MAX16963SAUEA/V+T	16-TSSOP_4.4_EP-4.4_MM	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys

Part Models	Product Lifecycle	PCN

Jun 18, 2021 - 2161 ASSEMBLY
		pcn_2161
MAX16963RATEA/V+	PRODUCTION
MAX16963RATEA/V+T	PRODUCTION
MAX16963SATEA/V+	PRODUCTION
MAX16963SATEA/V+T	PRODUCTION
MAX16963SATEC/V+	PRODUCTION
MAX16963SATEC/V+T	PRODUCTION
MAX16963SATEF/V+	PRODUCTION
MAX16963SATEF/V+T	PRODUCTION
Oct 13, 2017 - 1673 ASSEMBLY
		pcn_1673
MAX16963RATEA/V+	PRODUCTION
MAX16963RATEA/V+T	PRODUCTION
MAX16963SATEA/V+	PRODUCTION
MAX16963SATEA/V+T	PRODUCTION
MAX16963SATEC/V+	PRODUCTION
MAX16963SATEC/V+T	PRODUCTION
MAX16963SATEF/V+	PRODUCTION
MAX16963SATEF/V+T	PRODUCTION
Feb 20, 2015 - 1510 WAFER FAB
		pcn_1510
MAX16963RATEA/V+	PRODUCTION
MAX16963SATEA/V+	PRODUCTION
MAX16963SATEA/V+T	PRODUCTION
MAX16963SATEC/V+	PRODUCTION
MAX16963SATEC/V+T	PRODUCTION
MAX16963SATEF/V+	PRODUCTION
MAX16963SATEF/V+T	PRODUCTION
MAX16963SAUEA/V+T	PRODUCTION
Jul 13, 2022 - 2236A ASSEMBLY
		pcn_2236a
MAX16963SAUEA/V+	PRODUCTION
MAX16963SAUEA/V+T	PRODUCTION

This is the most up-to-date revision of the Data Sheet.

Software Resources

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Evaluation Kits

Evaluation Kit for the MAX16963

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Features and Benefits

2.7V to 5.5V Input Voltage Range
Dual Outputs (1.2V at 1.5A, 1.8V at 1.5A)
Fixed 2.2MHz Switching Frequency
Forced-PWM and Skip-Mode Operation
External Synchronization
High Efficiency
Power-Good Outputs (PG1, PG2)
Overcurrent and Thermal-Shutdown Protection
Fully Assembled and Tested

Product Details

The MAX16963 evaluation kit (EV kit) is a fully assembled and tested circuit board that evaluates the MAX16963 dual synchronous step-down converter IC with integrated high-side and low-side switches. The EV kit output is configured for 1.2V and 1.8V outputs up to 1.5A each. The EV kit circuit operates at the IC’s internally set 2.2MHz switching frequency and features PCB pads to monitor the IC power-good output signals (PG1, PG2) and jumpers to enable the EV kit outputs (EN1, EN2).

The MAX16963 EV kit is designed to operate from a single DC power supply that is capable of up to 5.5V at 3A for full range operation. The EV kit is shipped with a MAX16963RAUEA/V+ IC in a 16-pin TSSOP package with exposed pad.