MAXIM MAX1801EKA
| Manufacturer | |
| MPN | MAX1801EKA |
| LCSC Part # | C3187186 |
| Packaging | SOT-23-8 |
| Customer # | |
| Key Attributes | Boost 1MHz Adjustable 2.7V~5.5V SOT-23-8 Special Purpose Regulators |
| Datasheet | MAXIM MAX1801EKA |
Products Specifications
| Type | Description | |
|---|---|---|
| Category | Integrated Circuits (ICs)/Power Management (PMIC)/Special Purpose Regulators | |
| Manufacturer | MAXIM | |
| Packaging | SOT-23-8 | |
| Synchronous Rectifier | - | |
| Features | Frequency synchronization;External compensation;Overcurrent Protection | |
| Function | Boost | |
| Frequency - Switching | 1MHz | |
| Number of Outputs | 1 | |
| Output Voltage | - | |
| Output Type | Adjustable | |
| Topology | Boost;SEPIC;Flyback | |
| Output Current | - | |
| Quiescent Current | 124uA | |
| Switch tube (built-in/external) | External | |
| Voltage - Supply | 2.7V~5.5V | |
| Operating Temperature | -40℃~+85℃ |
| Type | Description | |
|---|---|---|
| Category | Integrated Circuits (ICs)/Power Management (PMIC)/Special Purpose Regulators | |
| Manufacturer | MAXIM | |
| Packaging | SOT-23-8 | |
| Synchronous Rectifier | - | |
| Features | Frequency synchronization;External compensation;Overcurrent Protection | |
| Function | Boost | |
| Frequency - Switching | 1MHz | |
| Number of Outputs | 1 |
| Type | Description | |
|---|---|---|
| Output Voltage | - | |
| Output Type | Adjustable | |
| Topology | Boost;SEPIC;Flyback | |
| Output Current | - | |
| Quiescent Current | 124uA | |
| Switch tube (built-in/external) | External | |
| Voltage - Supply | 2.7V~5.5V | |
| Operating Temperature | -40℃~+85℃ |
Introduction
The MAX1801 step-up slave DC-DC controller is used with either the MAX1800 (step-up) or the MAX1802 (stepdown) master DC-DC converter to provide a complete power-supply solution for digital still and digital video cameras. By using the master converter’s reference voltage and oscillator, the size and the cost of the slave controller are reduced and all converters are guaranteed to switch at the same frequency. The MAX1801 drives an external N-channel MOSFET and can be used in step-up, single-ended primary inductance converter (SEPIC), and flyback topologies. If extra supplies are required for a new design, slave controllers can be added to an existing master circuit with minimal redesign, saving both cost and time. The MAX1801 features a built-in soft-start, short-circuit protection, and an adjustable duty-cycle limit. The MAX1801 is available in a space-saving 8-pin SOT23 package. Separate evaluation kits combining the MAX1800/MAX1801 (MAX1800EVKIT) and MAX1802/ MAX1801 (MAX1802EVKIT) are available to expedite designs. The MAX1801 is a step-up slave DC-DC controller that obtains its input power, voltage reference, and oscillator signal directly from a MAX1800 or MAX1802 master DC-DC converter. The master-slave configuration reduces system cost by eliminating redundant circuitry and controls the harmonic content of noise by synchronizing converter switching. The MAX1801 controller operates in a low-noise fixedfrequency PWM mode, with output power limited by the external components. The controller regulates the output voltage by modulating the pulse width of the drive signal for an external N-channel MOSFET switch. The user-adjusted switching frequency is constant (100kHz to 1MHz) and set by the master converter.
Features
- Provides Simple Expandability for the MAX1800 and MAX1802 Master Converters
- Operates in Step-Up, SEPIC, and Flyback Topologies
- 100kHz to 1MHz Adjustable Operating Frequency
- Duty-Cycle Limit Adjustable from 40% to 90%
- Soft-Start
- Short-Circuit Protection
- 0.01μA Supply Current in Shutdown Mode
- Tiny 8-Pin SOT23 Package
Applications
- Digital Still Cameras
- Internet Access Tablets
- Digital Video Cameras
- PDAs
- Portable DVD Players
- Hand-Held Devices
Products Specifications
| Type | Description | |
|---|---|---|
| Category | Integrated Circuits (ICs)/Power Management (PMIC)/Special Purpose Regulators | |
| Manufacturer | MAXIM | |
| Packaging | SOT-23-8 | |
| Synchronous Rectifier | - | |
| Features | Frequency synchronization;External compensation;Overcurrent Protection | |
| Function | Boost | |
| Frequency - Switching | 1MHz | |
| Number of Outputs | 1 | |
| Output Voltage | - | |
| Output Type | Adjustable | |
| Topology | Boost;SEPIC;Flyback | |
| Output Current | - | |
| Quiescent Current | 124uA | |
| Switch tube (built-in/external) | External | |
| Voltage - Supply | 2.7V~5.5V | |
| Operating Temperature | -40℃~+85℃ |
| Type | Description | |
|---|---|---|
| Category | Integrated Circuits (ICs)/Power Management (PMIC)/Special Purpose Regulators | |
| Manufacturer | MAXIM | |
| Packaging | SOT-23-8 | |
| Synchronous Rectifier | - | |
| Features | Frequency synchronization;External compensation;Overcurrent Protection | |
| Function | Boost | |
| Frequency - Switching | 1MHz | |
| Number of Outputs | 1 |
| Type | Description | |
|---|---|---|
| Output Voltage | - | |
| Output Type | Adjustable | |
| Topology | Boost;SEPIC;Flyback | |
| Output Current | - | |
| Quiescent Current | 124uA | |
| Switch tube (built-in/external) | External | |
| Voltage - Supply | 2.7V~5.5V | |
| Operating Temperature | -40℃~+85℃ |
Introduction
The MAX1801 step-up slave DC-DC controller is used with either the MAX1800 (step-up) or the MAX1802 (stepdown) master DC-DC converter to provide a complete power-supply solution for digital still and digital video cameras. By using the master converter’s reference voltage and oscillator, the size and the cost of the slave controller are reduced and all converters are guaranteed to switch at the same frequency. The MAX1801 drives an external N-channel MOSFET and can be used in step-up, single-ended primary inductance converter (SEPIC), and flyback topologies. If extra supplies are required for a new design, slave controllers can be added to an existing master circuit with minimal redesign, saving both cost and time. The MAX1801 features a built-in soft-start, short-circuit protection, and an adjustable duty-cycle limit. The MAX1801 is available in a space-saving 8-pin SOT23 package. Separate evaluation kits combining the MAX1800/MAX1801 (MAX1800EVKIT) and MAX1802/ MAX1801 (MAX1802EVKIT) are available to expedite designs. The MAX1801 is a step-up slave DC-DC controller that obtains its input power, voltage reference, and oscillator signal directly from a MAX1800 or MAX1802 master DC-DC converter. The master-slave configuration reduces system cost by eliminating redundant circuitry and controls the harmonic content of noise by synchronizing converter switching. The MAX1801 controller operates in a low-noise fixedfrequency PWM mode, with output power limited by the external components. The controller regulates the output voltage by modulating the pulse width of the drive signal for an external N-channel MOSFET switch. The user-adjusted switching frequency is constant (100kHz to 1MHz) and set by the master converter.
Features
- Provides Simple Expandability for the MAX1800 and MAX1802 Master Converters
- Operates in Step-Up, SEPIC, and Flyback Topologies
- 100kHz to 1MHz Adjustable Operating Frequency
- Duty-Cycle Limit Adjustable from 40% to 90%
- Soft-Start
- Short-Circuit Protection
- 0.01μA Supply Current in Shutdown Mode
- Tiny 8-Pin SOT23 Package
Applications
- Digital Still Cameras
- Internet Access Tablets
- Digital Video Cameras
- PDAs
- Portable DVD Players
- Hand-Held Devices
C3187186 EasyEDA Library
Compliance & Export Codes
| Type | Details |
|---|---|
| ECCN | EAR99 |
| CNHTS | 8542399000 |
| USHTS | 8542390001 |
| TARIC | 8542399000 |
| CAHTS | 8542390000 |
| BRHTS | 85423999 |
| INHTS | 85423900 |
| MXHTS | 8542.39.99 |
| Type | Details |
|---|---|
| ECCN | EAR99 |
| CNHTS | 8542399000 |
| USHTS | 8542390001 |
| TARIC | 8542399000 |
| Type | Details |
|---|---|
| CAHTS | 8542390000 |
| BRHTS | 85423999 |
| INHTS | 85423900 |
| MXHTS | 8542.39.99 |