MAX15046BAEE+ by Analog Devices

40V, High-Performance, Synchronous Buck Controller

Status: Active
Series: MAX15046, MAX15046A, MAX15046B
RoHS: Unknown
View Datasheet Manufacturer Site View Pricing & Stock

The MAX15046 synchronous step-down controller operates from a 4.5V to 40V input voltage range and generates an adjustable output voltage from 85% of the input voltage down to 0.6V, supporting loads up to 25A. The device allows monotonic startup into a prebiased bus without discharging the output and features adaptive internal digital soft-start. The MAX15046 offers the ability to adjust the switching frequency from 100kHz to 1MHz with an external resistor. The MAX15046's adaptive synchronous rectification eliminates the need for an external freewheeling Schottky diode. The device also utilizes the external low-side MOSFET's on-resistance as a current-sense element, eliminating the need for a current-sense resistor. This protects the DC-DC components from damage during output overloaded conditions or output short-circuit faults without requiring a current-sense resistor. Hiccup-mode current limit reduces power dissipation during short-circuit conditions. The MAX15046 includes a power-good output and an enable input with precise turn-on/turn-off threshold, which can be used for input supply monitoring and for power sequencing. Additional protection features include sink-mode current limit, and thermal shutdown. Sink-mode current limit prevents reverse inductor current from reaching dangerous levels when the device is sinking current from the output. The MAX15046A/MAX15046B feature soft-stop operation. Soft-stop operation is disabled in the MAX15046C. The MAX15046 is available in a 16-pin QSOP or 16-pin QSOP-EP package and operates over the -40°C to +125°C temperature range.

Prices starting from US$2.61


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Logo for Newark Electronics Newark Electronics US$3.15
1,100
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Logo for element14 element14 US$2.61
980
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Features

Input Voltage Ranges from 4.5V to 40V or 5V ±10%
Adjustable Outputs from 0.85 x VIN Down to 0.6V
Adjustable Switching Frequency (100kHz to 1MHz) with ±10% (1MHz) Accuracy
Adaptive Internal Digital Soft-Start
Up to 25A Output Capability
Cycle-by-Cycle Valley-Mode Current Limit with Adjustable, Temperature-Compensated Threshold (30mV to 300mV)
Monotonic Startup into Prebiased Output
±1% Accurate Voltage Reference
90% Maximum Duty Cycle (MAX15046C)
3A-Peak Gate Drivers
Hiccup-Mode Short-Circuit Protection
Overtemperature Shutdown
Power-Good (PGOOD) Output and Enable Input (EN) with ±5% Accurate Threshold
Thermally Enhanced 16-Pin QSOP Package

Specifications

VIN (V) (min) 4.5
VIN (V) (max) 40
VOUT1 (V) (min) 0.6
VOUT1 (V) (max) 36
IOUT1 (A) (max) 25
Switch Type External
Output Adjust. Method Resistor
Synchronous Switching? Yes
Power Good Signal Yes
# DC-DC Outputs 1
Switching Frequency (kHz) 1000
Design Tools EE-Sim
Package/Pins QSOP/16
BudgetaryPrice (See Notes) 1.86


MAX15046BAEE+ Semiconductors - ICs by Analog Devices

BUCK SYNCH 4.5-40V 1MHZ 3A 16QSOP

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

Specifications

Supply Voltage Min 4.5V
Supply Voltage Max 5.5V
No. of Outputs 1 Output, 1Outputs
Duty Cycle (%) 87.5%
Controller IC Case Style QSOP
No. of Pins 16Pins
Switching Frequency 1.1MHz
Topology Synchronous Buck (Step Down)
Operating Temperature Min -40°C
Operating Temperature Max 125°C
Product Range -
Automotive Qualification Standard -
RoHS Phthalates Compliant To Be Advised
MSL MSL 1 - Unlimited
SVHC No SVHC (15-Jan-2018)
Frequency 1MHz
Input Voltage Max 40V
Input Voltage Min 4.5V
Operating Temperature Range -40°C to +125°C
Output Current 25A
Output Voltage 5.5V
Primary Input Voltage 40V

Alternative Descriptions

BUCK, SYNCH, 4.5-40V, 1MHZ, 3A, 16QSOP | Farnell
Buck, Synch, 4.5-40V, 1Mhz, 3A, 16Qsop | Newark Electronics

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This part has not been flagged as RoHS Compliant.

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