MAX16922

PRODUCTION

2.2MHz, Dual, Step-Down DC-DC Converters, Dual LDOs, and Active-Low RESET

Four Automotive Converters in a 5mm x 5mm Package

Data Sheet (Rev. 11) Product Selection Table

Part Models: 12
1ku List Price: Starting From $7.29

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Overview

1.2A High-Efficiency 2.2MHz DC-DC Converter
- 3.7V to 28V Operating Supply Voltage
- 45V Load-Dump Protection
- Output Voltage: 3.0V to 5.5V
600mA High-Efficiency 2.2MHz DC-DC Converter
- 2.7V to 5.5V Supply Voltage
- Output Voltage: 1.0V to 3.9V
- 180° Out-of-Phase Operation
- Forced-PWM and Auto-PWM Modes
LDO Linear Regulators
- OUT3: 1.0V to 4.15V at 300mA
- OUT4: 1.0V to 4.15V at 300mA
- Separate Inputs for Increased Efficiency
Enable Input
Active-Low RESET Output Monitoring on OUT1 and OUT2
Overtemperature and Short-Circuit Protection
Available in
- 5mm × 5mm × 0.8mm, 20-Pin TQFN-EP
- 4.5mm × 6.5mm, 20-Pin TSSOP-EP

The MAX16922 power-management integrated circuit (PMIC) is designed for medium power-level automotive applications and integrates multiple supplies in a small footprint. The device includes one high-voltage stepdown converter (OUT1) and three low-voltage cascaded DC-DC converters (OUT2, OUT3, OUT4). OUT1 and OUT2 are step-down DC-DC converters, and OUT3/OUT4 are linear regulators. The device also includes a reset output (active-low RESET) and a high-voltage-compatible enable input (EN).

The 1.2A output high-efficiency, step-down DC-DC converter (OUT1) operates from a voltage up to 28V continuous and is protected from load-dump transients up to 45V. The 600mA output high-efficiency step-down DC-DC converter (OUT2) runs from a voltage up to 5.5V. The two 300mA LDO linear regulators offer low dropout of only 130mV (typ). The power-good active-low RESET output provides voltage monitoring for OUT1 and OUT2.

OUT1 and OUT2 use fast 2.2MHz PWM switching and small external components. The high-voltage converter (OUT1) enters skip mode automatically under light loads to prevent an overvoltage condition from occurring at the output. The low-voltage synchronous DC-DC converter (OUT2) can operate in forced-PWM mode to prevent any AM band interference or high-efficiency auto-PWM mode.

The MAX16922 includes overtemperature shutdown and overcurrent limiting. The device is designed to operate from -40°C to +125°C ambient temperature.

Applications

Automotive

Part Models: 12
1ku List Price: Starting From $7.29

Documentation

Data Sheet 1

MAX16922: 2.2MHz, Dual, Step-Down DC-DC Converters, Dual LDOs, and Active-Low RESET Data Sheet (Rev.11) 07/19/2018

Technical Articles 1

Gigabit Multimedia Serial Links (GMSL) for ADAS Design Guide 06/15/2017

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
MAX16922ATPC/V+	20-LFCSP-5X5X0.75	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
MAX16922ATPC/V+T	20-LFCSP-5X5X0.75	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
MAX16922ATPE/V+	LFCSP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
MAX16922ATPE/V+T	LFCSP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
MAX16922ATPF/V+	LFCSP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
MAX16922ATPF/V+T	LFCSP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
MAX16922ATPH/V+	LFCSP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
MAX16922ATPH/V+T	LFCSP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
MAX16922ATPK/V+	LFCSP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
MAX16922ATPK/V+T	LFCSP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
MAX16922ATPO/V+	LFCSP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
MAX16922ATPO/V+T	LFCSP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys

Part Models	Product Lifecycle	PCN

Apr 3, 2023 - 2276B WAFER FAB
		pcn_2276b
MAX16922ATPE/V+	PRODUCTION
MAX16922ATPE/V+T	PRODUCTION
MAX16922ATPF/V+	PRODUCTION
MAX16922ATPF/V+T	PRODUCTION
MAX16922ATPH/V+	PRODUCTION
MAX16922ATPK/V+
MAX16922ATPO/V+	PRODUCTION
MAX16922ATPO/V+T	PRODUCTION
Jun 18, 2021 - 2161 ASSEMBLY
		pcn_2161
MAX16922ATPE/V+	PRODUCTION
MAX16922ATPE/V+T	PRODUCTION
MAX16922ATPF/V+	PRODUCTION
MAX16922ATPF/V+T	PRODUCTION
MAX16922ATPH/V+	PRODUCTION
MAX16922ATPK/V+
Oct 13, 2017 - 1673 ASSEMBLY
		pcn_1673
MAX16922ATPE/V+	PRODUCTION
MAX16922ATPE/V+T	PRODUCTION
MAX16922ATPF/V+	PRODUCTION
MAX16922ATPF/V+T	PRODUCTION
MAX16922ATPH/V+	PRODUCTION
MAX16922ATPK/V+

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

Software Resources

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Evaluation Kits

Evaluation Kit for the MAX16922

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Features and Benefits

6V to 18V Input Supply Voltage Range
Load-Dump Protection Circuit Withstands Input Transients Up to 45V
5V at 1.2A Output (OUT1 from DC-DC1)
3.3V at 600mA Output (OUT2 from DC-DC2)
2.5V at 300mA Output (OUT3 from LDO1)
1.8V at 300mA Output (OUT4 from LDO2)
180° Out-of-Phase Operation Reduces Input Capacitance
2.2MHz Switching Frequency
Forced-PWM and Skip Mode Operation
Enable Input (EN)
Power-Good Reset Output (Active-Low RESET)
Evaluates the MAX16922 Family in a 20-Pin TQFN (5mm x 5mm x 0.8mm) Package
Fully Assembled and Tested

Product Details

The MAX16922 evaluation kit (EV kit) is an assembled and tested circuit board that contains all the components necessary to evaluate the MAX16922 IC family. The MAX16922 is a dual-output, step-down DC-DC converter and dual low dropout (LDO) linear regulator. The EV kit is powered from a DC supply providing 6V to 18V and up to 3A. The EV kit is designed to withstand a load-dump condition up to 45V.

The EV kit is shipped with the MAX16922ATPE/V+ installed. This MAX16922 version is capable of delivering 5V at 1.2A from the first step-down DC-DC converter (DC-DC1) and 3.3V at up to 600mA from the second step-down DC-DC converter (DC-DC2). The first LDO linear regulator (LDO1) provides 2.5V and up to 300mA, while the second LDO linear regulator (LDO2) provides 1.8V and up to 300mA. The MAX16922 switching frequency is 2.2MHz and the two DC-DC converters switch 180° out of phase with respect to each other. The DC-DC2 can operate in PWM mode to prevent AM band interference or high-efficiency skip mode. The EV kit includes an enable input (EN) and a power-good reset output (active-low RESET) to monitor the output voltages of the two DC-DC converters.