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MAXIM MAX17551AUB+T product image
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MAXIM MAX17551AUB+TRoHS

Manufacturer
MAXIM
MPN
MAX17551AUB+T
LCSC Part #
C490961
Packaging
MSOP-10
Customer #
Key Attributes
60V, 50mA, Ultra-Small, High-Efficiency, Synchronous Step-Down DC-DC Converter with 22uA No-Load Supply Current
Datasheetpdf iconMAXIM MAX17551AUB+T
In-Stock: 10
10 In stock, ships now
Minimum: 1Multiple: 1Sales Unit: Piece
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QtyUnit PriceTotal Amount
1+$ 2.7175$ 2.72
10+$ 2.6496$ 26.50
50+$ 2.6044$ 130.22
100+$ 2.5592$ 255.92
Standard Packaging50/Full Tube
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Products Specifications

All
TypeDescription
CategoryIntegrated Circuits (ICs)/Power Management (PMIC)/Voltage Regulators - DC DC Switching Regulators
ManufacturerMAXIM
PackagingMSOP-10
Operating Temperature-40℃~+125℃@(TJ)
Frequency - Switching2.2MHz
FunctionStep-down type
Number of Outputs1
FeaturesCycle-by-cycle current limiting;Hiccup current limiting;Adjustable soft-start;Frequency synchronization;Light load efficient mode;Overcurrent Protection;Operating status indication
Output TypeAdjustable
TopologyBuck
Operating Voltage4V~60V
Switch tube (built-in/external)Built-in
Output Current50mA
Output Voltage800mV~54V
Quiescent Current22uA
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Introduction

AI Translation

The MAX17551 high-efficiency, high-voltage, synchronous step-down DC-DC converter with integrated MOSFETs operates over a 4V to 60V input. The converter can deliver up to 50mA and generates output voltages from 0.8V up to 0.9×VIN. The feedback (FB) voltage is accurate to within ±1.75% over -40°C to +125°C. The MAX17551 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×2mm) TDFN and 10-pin (3mm×3mm) μMAX packages. Simulation models are available.

Features

AI Translation
  • Reduces External Components and Total Cost
  • 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 60V Input
  • Adjustable 0.8V to 0.9×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
  • Operates Reliable in Adverse Environments
  • Peak Current Limit Protection
  • Built-In Output Voltage Monitoring RESET
  • Programmable EN/UVLO Threshold
  • Monotonic Startup in to Prebiased Load
  • Overtemperature Protection
  • High Industrial -40°C to +125°C Ambient Operating Temperature Range / -40°C to +150°C Junction Temperature Range

Applications

AI Translation
  • Industrial Sensors and Process Control
  • High-Voltage LDO Replacement
  • Battery-Powered Equipment
  • HVAC and Building Control