MAX16955AUE/V+ by Analog Devices

36V, 1MHz Step-Down Controller with Low Operating Current


The MAX16955 is a current-mode, synchronous PWM step-down controller designed to operate with input voltages from 3.5V to 36V while using only 50µA of quiescent current at no load. The switching frequency is adjustable from 220kHz to 1MHz by an external resistor and can be synchronized to an external clock up to 1.1MHz. The MAX16955 output voltage is pin programmable to be either 5V fixed or adjustable from 1V to 10V. The wide input voltage range, along with its ability to operate in dropout during undervoltage transients, makes it ideal for automotive and industrial applications. The MAX16955 operates in fixed-frequency PWM mode and low quiescent current skip mode. It features an enable logic input, which is compatible up to 42V to disable the device and reduce its shutdown current to 10µA. Protection features include overcurrent limit, overvoltage, undervoltage, and thermal shutdown with automatic recovery. The device also features a powergood monitor to ease power-supply sequencing. The MAX16955 is available in a thermally enhanced 16-pin TSSOP package with exposed pad and is specified for operation over the -40°C to +125°C automotive temperature range.

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Prices starting from US$3.22

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Features

Wide 3.5V to 36V Input Voltage Range
42V Input Transient Tolerance
High Duty Cycle During Undervoltage Transients
220kHz to 1MHz Adjustable Switching Frequency
Current-Mode Control Architecture
Adjustable (1V to 10V) Output Voltage with ±2% Accuracy
Three Operating Modes 50µA Ultra-Low Quiescent Current Skip Mode Forced Fixed-Frequency Mode External Frequency Synchronization
50µA Ultra-Low Quiescent Current Skip Mode
Forced Fixed-Frequency Mode
External Frequency Synchronization
Lowest BOM Count, Current-Mode Control Architecture
Power-Good Output
Enable Input Compatible from 3.3V Logic Level to 42V
Current-Limit, Thermal Shutdown, and Overvoltage Protection
-40°C to +125°C Automotive Temperature Range
Automotive Qualified

Specifications

VIN (V) (min) 3.5
VIN (V) (max) 36
VOUT1 (V) (min) 1
VOUT1 (V) (max) 10
IOUT1 (A) (max) 5
Switch Type External
Preset VOUT (V) 5
Output Adjust. Method PresetResistor
Synchronous Switching? Yes
Power Good Signal Yes
# DC-DC Outputs 1
Switching Frequency (kHz) 1000
Package/Pins TSSOP/16
BudgetaryPrice (See Notes) 2.66


MAX16955AUE/V+ Semiconductors - ICs by Analog Devices

DC/DC CTRL 1MHZ TSSOP-16

Status: Unknown
Series: -
RoHS: Unknown
Download Datasheet Visit Manufacturer Site View Pricing & Stock

Specifications

Supply Voltage Min 3.5V
Supply Voltage Max 36V
No. of Outputs 1 Output, 1Outputs
Duty Cycle (%) -
Controller IC Case Style TSSOP
No. of Pins 16Pins
Switching Frequency 1MHz
Topology Synchronous Buck (Step Down)
Operating Temperature Min -40°C
Operating Temperature Max 125°C
Product Range -
Automotive Qualification Standard AEC-Q100
RoHS Phthalates Compliant To Be Advised
MSL MSL 1 - Unlimited
SVHC No SVHC (15-Jan-2018)

Alternative Descriptions

36V, 1MHz Step-Down Controller | Analog Devices
Dc/Dc Ctrl, 1Mhz, Tssop-16 | Newark Electronics
DC/DC CTRL, 1MHZ, TSSOP-16 | element14

Frequently Asked Questions

Where can I find additional details, specifications and documents for a MAX16955AUE/V+ ?

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Is the MAX16955AUE/V+ RoHS compliant?

This part has not been flagged as RoHS Compliant.

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