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MAXIM MAX17543ATP+
| Manufacturer | |
| MPN | MAX17543ATP+ |
| LCSC Part # | C1355570 |
| Packaging | TQFN-20-EP(4x4) |
| Customer # | |
| Key Attributes | High-efficiency high-voltage synchronous buck DC-DC converter |
| Datasheet | MAXIM MAX17543ATP+ |
| RoHS Compliance | 1 documents available |
| Alternative Parts | 5 |
Products Specifications
All
| Type | Description | |
|---|---|---|
| Category | Integrated Circuits (ICs)/Power Management (PMIC)/Voltage Regulators - DC DC Switching Regulators | |
| Manufacturer | MAXIM | |
| Packaging | TQFN-20-EP(4x4) | |
| Operating Temperature | -40℃~+125℃@(TJ) | |
| Frequency - Switching | 100kHz~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;Overcurrent Protection;Operating status indication | |
| Output Type | Adjustable | |
| Topology | Buck | |
| Operating Voltage | 4.5V~42V | |
| Switch tube (built-in/external) | Built-in | |
| Output Current | 2.5A | |
| Output Voltage | 900mV~37.8V | |
| Quiescent Current | 118uA |
| Type | Description | |
|---|---|---|
| Category | Integrated Circuits (ICs)/Power Management (PMIC)/Voltage Regulators - DC DC Switching Regulators | |
| Manufacturer | MAXIM | |
| Packaging | TQFN-20-EP(4x4) | |
| Operating Temperature | -40℃~+125℃@(TJ) | |
| Frequency - Switching | 100kHz~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;Overcurrent Protection;Operating status indication |
| Type | Description | |
|---|---|---|
| Output Type | Adjustable | |
| Topology | Buck | |
| Operating Voltage | 4.5V~42V | |
| Switch tube (built-in/external) | Built-in | |
| Output Current | 2.5A | |
| Output Voltage | 900mV~37.8V | |
| Quiescent Current | 118uA |
Help & FeedbackShow similar products (0) >
Introduction
AI Translation
The MAX17543 high-efficiency, high-voltage, synchronous step-down DC-DC converter with integrated MOSFETs operates over a 4.5V to 42V input. The converter can deliver up to 2.5A and generates output voltages from 0.9V up to 0.9 × V_IN. The feedback (FB) voltage is accurate to within ±1.1% over -40℃ to +125℃. The MAX17543 uses peak current-mode control. The device can be operated in the pulse-width modulation (PWM), pulse-frequency modulation (PFM), or discontinuous conduction mode (DCM) control schemes. The device is available in a 20-pin (4mm×4mm) TQFN package. Simulation models are available.
Features
AI Translation
- 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×V_IN 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
- 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℃ to +125℃ Ambient Operating Temperature Range/-40℃ to +150℃ Junction Temperature Range
Applications
AI Translation
- Industrial Power Supplies
- Distributed Supply Regulation High-Voltage Single-Board Systems
- Base Station Power Supply
- General-Purpose Point-of-Load
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Products Specifications
All
| Type | Description | |
|---|---|---|
| Category | Integrated Circuits (ICs)/Power Management (PMIC)/Voltage Regulators - DC DC Switching Regulators | |
| Manufacturer | MAXIM | |
| Packaging | TQFN-20-EP(4x4) | |
| Operating Temperature | -40℃~+125℃@(TJ) | |
| Frequency - Switching | 100kHz~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;Overcurrent Protection;Operating status indication | |
| Output Type | Adjustable | |
| Topology | Buck | |
| Operating Voltage | 4.5V~42V | |
| Switch tube (built-in/external) | Built-in | |
| Output Current | 2.5A | |
| Output Voltage | 900mV~37.8V | |
| Quiescent Current | 118uA |
| Type | Description | |
|---|---|---|
| Category | Integrated Circuits (ICs)/Power Management (PMIC)/Voltage Regulators - DC DC Switching Regulators | |
| Manufacturer | MAXIM | |
| Packaging | TQFN-20-EP(4x4) | |
| Operating Temperature | -40℃~+125℃@(TJ) | |
| Frequency - Switching | 100kHz~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;Overcurrent Protection;Operating status indication |
| Type | Description | |
|---|---|---|
| Output Type | Adjustable | |
| Topology | Buck | |
| Operating Voltage | 4.5V~42V | |
| Switch tube (built-in/external) | Built-in | |
| Output Current | 2.5A | |
| Output Voltage | 900mV~37.8V | |
| Quiescent Current | 118uA |
Help & FeedbackShow similar products (0) >
Introduction
AI Translation
The MAX17543 high-efficiency, high-voltage, synchronous step-down DC-DC converter with integrated MOSFETs operates over a 4.5V to 42V input. The converter can deliver up to 2.5A and generates output voltages from 0.9V up to 0.9 × V_IN. The feedback (FB) voltage is accurate to within ±1.1% over -40℃ to +125℃. The MAX17543 uses peak current-mode control. The device can be operated in the pulse-width modulation (PWM), pulse-frequency modulation (PFM), or discontinuous conduction mode (DCM) control schemes. The device is available in a 20-pin (4mm×4mm) TQFN package. Simulation models are available.
Features
AI Translation
- 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×V_IN 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
- 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℃ to +125℃ Ambient Operating Temperature Range/-40℃ to +150℃ Junction Temperature Range
Applications
AI Translation
- Industrial Power Supplies
- Distributed Supply Regulation High-Voltage Single-Board Systems
- Base Station Power Supply
- General-Purpose Point-of-Load
C1355570 EasyEDA Library
Compliance & Export Codes
| Type | Details |
|---|---|
| RoHS | ROHS3 Compliant |
| ECCN | EAR99 |
| CNHTS | 8542399000 |
| USHTS | 8542390001 |
| TARIC | 8542399000 |
| CAHTS | 8542390000 |
| BRHTS | 85423999 |
| INHTS | 85423900 |
| MXHTS | 8542.39.99 |
| Type | Details |
|---|---|
| RoHS | ROHS3 Compliant |
| ECCN | EAR99 |
| CNHTS | 8542399000 |
| USHTS | 8542390001 |
| TARIC | 8542399000 |
| Type | Details |
|---|---|
| CAHTS | 8542390000 |
| BRHTS | 85423999 |
| INHTS | 85423900 |
| MXHTS | 8542.39.99 |