MAXIM

MAX17544ATP+T

2.2MHz Step-down type Adjustable 3.5A 900mV~37.8V TQFN-20(5x5) Voltage Regulators - DC DC Switching Regulators RoHS

TQFN-20(5x5)ROHS3 CompliantActive

4.5V–42V, 3.5A, High-Efficiency, Synchronous Step-Down DC-DC Converter With Internal Compensation

Manufacturer: MAXIM
Manufacturer part #: MAX17544ATP+T
Store part #: C3188661
Package / case: TQFN-20(5x5)
Category: Voltage Regulators - DC DC Switching Regulators
Packaging: Tape & Reel (TR)

Datasheet (PDF)

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10 in stock

#C3188661

Stock & price checked 3 days ago

Quantity	Unit price	Pack price
1+	₹975.46	₹975.46
10+	₹952.72	₹9,527.20
30+	₹937.48	₹28,124.40
100+	₹922.25	₹92,225.00

Quantity (min 1)

1 × ₹975.46

₹975.46

excl. GST

₹1,151.04 incl. 18% GST

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Standard pack: 2,500 per reel

MAX17544ATP+T

₹975.46 for 1 + GST

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Specifications

Operating Temperature: -40℃~+125℃@(TJ)
Frequency - Switching: 2.2MHz
Function: Step-down type
Number of Outputs: 1
Features: Adjustable current limiting;Cycle-by-cycle current limiting;Hiccup current limiting;Adjustable soft-start;Frequency synchronization;Light load efficient mode;Built-in LDO regulator;Operating status indication;Overcurrent Protection
Output Type: Adjustable
Topology: Buck
Operating Voltage: 4.5V~42V
Switch tube (built-in/external): Built-in
Output Current: 3.5A
Output Voltage: 900mV~37.8V
Quiescent Current: 118uA

Packaging & compliance

RoHS: ROHS3 Compliant
Lifecycle: Active
ECCN: EAR99
Packaging: Tape & Reel (TR)
Standard pack: 2,500 / Reel
Sold per: Piece
Minimum order: 1
Unit weight: 0.207 g

Overview

The MAX17544 high-efficiency, high-voltage, synchronous step-down DC-DC converter with integrated MOSFETs operates over 4.5V to 42V input. The converter can deliver up to 3.5A and generates output voltages from 0.9V up to 0.9×VIN. The feedback (FB) voltage is accurate to within ±1.1% over -40°C to +125°C. The MAX17544 uses peak-current-mode control. The device can be operated in pulse-width modulation (PWM), pulse-frequency modulation (PFM), or discontinuous conduction mode (DCM) control schemes. The device is available in a 20-pin (5mm×5mm) TQFN package. Simulation models are available.

Applications

Industrial Power Supplies
Distributed Supply Regulation
High-Voltage Single-Board Systems
Base Station Power Supply
General-Purpose Point-of-Load

Key features

Reduces External Components and Total Cost
No Schottky—Synchronous Operation
Internal Compensation for Any Output Voltage
Built-In Soft-Start
All-Ceramic Capacitors, Compact Layout
Reduces Number of DC-DC Regulators to Stock
Wide 4.5V to 42V Input
Adjustable 0.9V to 0.9×VIN Output
100kHz to 2.2MHz Adjustable Switching Frequency with External Synchronization
Reduces Power Dissipation
Peak Efficiency >90%
PFM/DCM Enables Enhanced Light-Load Efficiency
2.8μA Shutdown Current
Operates Reliably in Adverse Industrial Environments
Peak Current-Limit Protection
Built-In Output Voltage Monitoring with RESET
Programmable EN/UVLO Threshold
Monotonic Startup into Prebiased Load
Overtemperature Protection
High Industrial -40°C to +125°C Ambient Operating Temperature Range/-40°C to +150°C Junction Temperature Range

Alternatives

Similar parts — check the datasheet before substituting.

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