MAX16956AUBA/V+ by Analog Devices

36V, 300mA, Mini Buck Converter with 1.1µA IQ


The MAX16956 is a small, synchronous buck converter with integrated high-side and low-side switches. The device is designed to deliver up to 300mA with input voltages from 3.5V to 36V, while using only 1.1µA quiescent current at no load (fixed-output versions). Voltage quality can be monitored by observing the active-low RESET signal. The device can operate near dropout by running at 97% duty cycle, making it ideal for automotive applications under cold-crank. The device offers fixed-output voltages of 5V and 3.3V, as well as an adjustable version. The adjustable version allows the user to program the output voltage between 1V and 15V by using a resistor-divider. Frequency is fixed at 2.1MHz, which allows for small external components, reduced output ripple, and minimized AM radio interference. The device offers both forced-PWM and skip modes of operation, with ultra-low quiescent current of 1.1µA in skip mode. The device can be ordered with spread-spectrum frequency modulation designed to minimize EMI-radiated emissions due to the switching frequency. The MAX16956 is available in a small (3mm × 3mm) 10-pin µMAX® package and operates across the full automotive temperature range of -40°C to +125°C. The device is AEC-Q100 qualified.

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Prices starting from US$3.13

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Features

Integration and High-Switching Frequency Saves Space DC-DC Converter Up to 300mA Capability Fixed 5V/3.3V or Programmable Output-Voltage Options (1V to 15V) Current-Mode-Control Architecture 2.1MHz Operating Frequency Fixed 5.4ms Internal Soft-Start
DC-DC Converter Up to 300mA Capability
Fixed 5V/3.3V or Programmable Output-Voltage Options (1V to 15V)
Current-Mode-Control Architecture
2.1MHz Operating Frequency
Fixed 5.4ms Internal Soft-Start
Spread-Spectrum Frequency Modulation Reduces EMI Emissions
Low IQ Enables Designers to Meet Stringent OEM Module Power-Consumption Requirements 1.1µA Quiescent Current in Standby Mode (Fixed-Output-Voltage Versions Only)
1.1µA Quiescent Current in Standby Mode (Fixed-Output-Voltage Versions Only)
Wide Input Voltage Range Supports Automotive Applications Operating VIN Range: 3.5V to 36V (42V Tolerant) 97% (Max) Duty-Cycle Operation with Low Dropout
Operating VIN Range: 3.5V to 36V (42V Tolerant)
97% (Max) Duty-Cycle Operation with Low Dropout
Robust Performance Supports Wide Range of Automotive Applications Short-Circuit, Thermal Protections -40°C to +125°C Automotive Temperature Range AEC-Q100 Qualified
Short-Circuit, Thermal Protections
-40°C to +125°C Automotive Temperature Range
AEC-Q100 Qualified

Specifications

VIN (V) (min) 3.5
VIN (V) (max) 36
VOUT1 (V) (min) 1
VOUT1 (V) (max) 15
IOUT1 (A) (max) 0.3
Switch Type Internal
Preset VOUT (V) 5
Output Adjust. Method PresetResistor
Synchronous Switching? Yes
# DC-DC Outputs 1
Switching Frequency (kHz) 2100
Design Tools EE-Sim
Package/Pins UMAX/10
BudgetaryPrice (See Notes) 2.61


MAX16956AUBA/V+ Semiconductors - ICs by Analog Devices

DC/DC CTRL AEC-Q100 SYNC BUCK UMAX-10

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

The MAX16956 is a small, synchronous buck converter with integrated high-side and low-side switches. The device is designed to deliver up to 300mA with input voltages from 3.5V to 36V, while using only 1.1µA quiescent current at no load (fixed-output versions). Voltage quality can be monitored by observing the RESET signal. The device can operate near dropout by running at 97% duty cycle, making it ideal for automotive applications under cold-crank. The device offers fixed-output voltages of 5V and 3.3V, as well as an adjustable version. The adjustable version allows the user to program the output voltage between 1V and 10V by using a resistor-divider. Frequency is fixed at 2.1MHz, which allows for small external components, reduced output ripple, and minimized AM radio interfer- ence. The device offers both forced-PWM and skip modes of operation, with ultra-low quiescent current of 1.1µA in skip mode. The device can be ordered with spread- spectrum frequency modulation designed to minimize EMI-radiated emissions due to the switching frequency. The MAX16956 is available in a small (3mm x 3mm) 10-pin µMAX® package and operates across the full auto- motive temperature range of -40°C to +125°C. The device is AEC-Q100 qualified.

Specifications

Supply Voltage Min 3.5V
Supply Voltage Max 36V
No. of Outputs 1 Output
Duty Cycle (%) 97%
Controller IC Case Style µMAX
No. of Pins 10Pins
Switching Frequency 2.1MHz
Topology Synchronous Buck (Step Down)
Operating Temperature Min -40°C
Operating Temperature Max 125°C
Product Range -
Automotive Qualification Standard AEC-Q100
MSL MSL 1 - Unlimited
SVHC No SVHC (15-Jan-2018)

Alternative Descriptions

36V, 300mA, Mini Buck Converte | Analog Devices
Dc/Dc Ctrl, Aec-Q100, Sync Buck, Umax-10 | Newark Electronics
DC/DC CTRL, AEC-Q100, SYNC BUCK, UMAX-10 | element14

Frequently Asked Questions

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This part has not been flagged as RoHS Compliant.

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