MAX17531AUB+ by Analog Devices

4V to 42V, 50mA, Ultra-Small, High-Efficiency, Synchronous Step-Down DC-DC Converter with 22µA No-Load Supply Current


The MAX17531 high-efficiency, high-voltage, synchronous step-down DC-DC converter with integrated MOSFETs operates over a 4V to 42V input. The converter can deliver up to 50mA and generates output voltages from 0.8V up to 0.9 x VIN. The feedback (FB) voltage is accurate to within ±1.75% over -40°C to +125°C. The MAX17531 uses peak-current-mode control and can be operated in pulse-width modulation (PWM) or pulse-frequency modulation (PFM) modes. The device is available in a 10-pin (3mm x 2mm) TDFN and 10-pin (3mm x 3mm) µMAX® packages. Simulation models are available.

Where to Buy

Prices starting from US$1.27

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from US$1.27
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from US$1.34
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Features

Reduces External Components and Total Cost No Schottky–Synchronous Internal Compensation for Any Output Voltage Built-In Soft-Start All-Ceramic Capacitors, Compact Layout
No Schottky–Synchronous
Internal Compensation for Any Output Voltage
Built-In Soft-Start
All-Ceramic Capacitors, Compact Layout
Reduces Number of DC-DC Regulators to Stock Wide 4V to 42V Input Adjustable 0.8V up to 0.9 x VIN Output 100kHz to 2.2MHz Adjustable Switching Frequency with External Synchronization
Wide 4V to 42V Input
Adjustable 0.8V up to 0.9 x VIN Output
100kHz to 2.2MHz Adjustable Switching Frequency with External Synchronization
Reduces Power Dissipation 22µA Quiescent Current Peak Efficiency > 90% PFM Enables Enhanced Light-Load Efficiency 1.2µA Shutdown Current
22µA Quiescent Current
Peak Efficiency > 90%
PFM Enables Enhanced Light-Load Efficiency
1.2µA Shutdown Current
Operates Reliably in Adverse Environments Peak Current Limit Protection Built-In Output Voltage Monitoring Active-Low RESET Programmable EN/UVLO Threshold Monotonic Startup in to Prebiased Load Overtemperature Protection High Industrial -40℃ to +125℃ Ambient Operating Temperature Range / -40℃ to +150℃ Junction Temperature Range
Peak Current Limit Protection
Built-In Output Voltage Monitoring Active-Low RESET
Programmable EN/UVLO Threshold
Monotonic Startup in to Prebiased Load
Overtemperature Protection
High Industrial -40℃ to +125℃ Ambient Operating Temperature Range / -40℃ to +150℃ Junction Temperature Range

Specifications

VIN (V) (min) 4
VIN (V) (max) 42
VOUT1 (V) (min) 0.8
VOUT1 (V) (max) 37
IOUT1 (A) (max) 0.05
Switch Type Internal
Output Adjust. Method Resistor
Synchronous Switching? Yes
Power Good Signal Yes
# DC-DC Outputs 1
Switching Frequency (kHz) 2200
Design Tools EE-Sim
Package/Pins TDFN/10UMAX/10
BudgetaryPrice (See Notes) 1.19


MAX17531AUB+ Power Management ICs - PMIC by Analog Devices

DC/DC CONV SYNC BUCK 2.2MHZ UMAX-10

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

Specifications

Topology Synchronous Buck (Step Down)
Input Voltage Min 4V
Input Voltage Max 42V
No. of Outputs 1Outputs
DC / DC Converter IC Case µMAX
No. of Pins 10Pins
Output Current 50mA
Output Voltage Min 800mV
Output Voltage Max 37V
Switching Frequency 2.2MHz
Operating Temperature Max 125°C
Product Range Himalaya Series
Automotive Qualification Standard -
MSL MSL 1 - Unlimited
SVHC No SVHC (15-Jan-2018)
Operating Temperature Min -40°C

Alternative Descriptions

Dc/Dc Conv, Sync Buck, 2.2Mhz, Umax-10 | Newark Electronics
DC/DC CONV, SYNC BUCK, 2.2MHZ, UMAX-10 | element14

Frequently Asked Questions

Where can I find additional details, specifications and documents for a MAX17531AUB+ ?

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Is the MAX17531AUB+ RoHS compliant?

This part has not been flagged as RoHS Compliant.

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Authorised distributors including Newark Electronics, element14 and Farnell have stock available or on a lead time for MAX17531AUB+ .

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