MAX16932BATIS/V+

Voltage - Supply (Vcc/Vdd):	3.5 V ~ 42 V
Supplier Device Package:	28-TQFN (5x5)
Package / Case:	28-WFQFN Exposed Pad
Operating Temperature:	-40°C ~ 125°C (TJ)
Control Features:	Enable, Frequency Control, Power Good
Serial Interfaces:	--
Clock Sync:	Yes
Synchronous Rectifier:	Yes
Duty Cycle (Max):	98.5%
Frequency - Switching:	1MHz ~ 2.2MHz
Series:	Automotive, AEC-Q100
Output Phases:	2
Number of Outputs:	2
Topology:	Buck
Output Configuration:	Positive
Function:	Step-Down
Output Type:	Transistor Driver
Part Status:	Obsolete
Packaging:	Tube

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Overview MAX16932BATIS/V+ is a digital DC-DC step-down switching controller, which belongs to the voltage regulator type. Besides providing current-limited best-in-class efficiency over a wide VIN, and ultra-low quiescent current for low power consumption, it also offers excellent system versatility through its feature set. Application Field The MAX16932BATIS/V+ is designed for a wide range of market applications such as industrial, communications, and computer products, automotive aftermarket accessories, battery supply systems. It is suitable for any application that requires a low power DC-DC step-down switching regulator to achieve high efficiency and good transient response with limited external components.Other applications include motor coaches and golf carts to power lights, roof fans, and other 12V accessories. In automotive applications, the MAX16932BATIS/V+ controller can be used with an inductor to reduce the vehicle\'s main battery voltage to either a constant voltage or to a battery-voltage dependent output voltage to power up the system load.Working Principle The MAX16932BATIS/V+ digital DC-DC step-down switching controller uses a combination of digital control and analog circuitry to control a buck regulator with an output voltage above the input voltage. The control loop is able to maintain good transient response, fast response times and good line regulation over the full input voltage range.In normal mode, the MAX16932BATIS/V+ periodically switches the output voltage on and off at a repetition rate of 300kHz. The current passing through the inductor is sensed and monitored by the IC which adjusts the on-time of each cycle to regulate the output voltage. The output voltage is controlled by the on-time, so it is proportional to the sense-resistor current, the input voltage and other parameters. At the same time, the output voltage is monitored by an Analog-to-Digital Converter (ADC). The sensed output voltage is compared to the desired voltage set point and that difference is used to adjust the on-time every switching cycle. This maintains a constant voltage output with minimal variation over a wide range of load and input voltages. The step-down switching regulator also contains other features including over current and short-circuit protection, over temperature protection, and an enable pin to configure the output voltage quickly and easily. ConclusionThe MAX16932BATIS/V+ DC-DC switching controller offers excellent system versatility in a wide range of applications. It has current-limited best-in-class efficiency over a wide VIN, low quiescent current for low power consumption, and fast response times and good line regulation with minimal variation over a wide range of load and input voltages. The high performance characteristics and wide application field make the MAX16932BATIS/V+ an excellent choice for voltage regulator applications.

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