/
/
/
Switching Regulators 
/
Top ![]()
MAX20002
36V, 220kHz to 2.2MHz, 2A/3A Fully Integrated Step-Down Converters with 15µA Operating Current
2A/3A Automotive Synchronous Step-Down Converter with Low IQ
Maxim Confidential 
MyMaxim SubscriptionsProduct Details
The MAX20002/MAX20003 are small, synchronous buck converters with integrated high-side and low-side MOSFETs. Each device is designed to deliver up to 2A/3A with input voltages from 3.5V to 36V, while using only 15µA quiescent current at no load. Voltage quality can be monitored by observing the PGOOD signal. The devices can operate in dropout by running at 98% duty cycle, making them ideal for automotive applications.
The devices offer fixed output voltages of 5V/3.3V, along with the ability to program the output voltage between 1V to 10V. Frequency can be programmed using a resistor to ground on the FOSC pin from 220kHz to 2.2MHz. The devices offer a forced fixed-frequency mode and skip mode with ultra-low quiescent current of 15µA. They have a pin that can be programmed to turn on/off the spread spectrum, further helping systems designers with better EMC management.
The MAX20002/MAX20003 are available in a small 5mm x 5mm 20-pin TQFN package with exposed pad and use very few external components.
The devices offer fixed output voltages of 5V/3.3V, along with the ability to program the output voltage between 1V to 10V. Frequency can be programmed using a resistor to ground on the FOSC pin from 220kHz to 2.2MHz. The devices offer a forced fixed-frequency mode and skip mode with ultra-low quiescent current of 15µA. They have a pin that can be programmed to turn on/off the spread spectrum, further helping systems designers with better EMC management.
The MAX20002/MAX20003 are available in a small 5mm x 5mm 20-pin TQFN package with exposed pad and use very few external components.
Key Features
- Synchronous DC-DC Converter with Integrated FETs
- MAX20002 = 2A
- MAX20003 = 3A
- 15µA Quiescent Current When in Standby Mode
- Small Solution Size Saves Space
- 220kHz to 2.2MHz Adjustable Frequency
- Programmable 1V to 10V Output for the Buck or Fixed 5V/3.3V Options Available
- Fixed 8ms Internal Soft-Start
- Fixed Output Voltage with ±2% Output Accuracy (5V/3.3V) or Externally Resistor Adjustable (1V to 10V) with ±1% FB Accuracy
- PGOOD Output and High-Voltage EN Input Simplify Power Sequencing
- Protection Features and Operating Range Ideal for Automotive Applications
- Operating VIN Range of 3.5V to 36V
- 42V Load-Dump Protection
- 99% Duty-Cycle Operation with Low Dropout
- -40°C to +125°C Automotive Temperature Range
- AEC-Q100 Qualified
- Fast and Accurate Overvoltage Protection Enables Fast Recovery from Automotive Transients (MAX20002C/E and MAX20003C/E)
Applications/Uses
- Distributed DC Power Systems
- Navigation and Radio Head Units
- Point-of-Load Applications in Automotive
Parametric specs for Step-Down Switching Regulators
| VIN (V) (min) | 3.5 |
| VIN (V) (max) | 36 |
| VOUT1 (V) (min) | 1 |
| VOUT1 (V) (max) | 10 |
| IOUT1 (A) (max) | 2 |
| Switch Type | Internal |
| Preset VOUT (V) | 5 |
| Output Adjust. Method | Resistor |
| Synchronous Switching? | Yes |
| Power Good Signal | Yes |
| # DC-DC Outputs | 1 |
| Switching Frequency (kHz) | 220 2200 |
| Design Tools | EE-Sim |
| Package/Pins | TQFN-CU/20 |
| Budgetary Price (See Notes) | $2.75 @1k |
View More
Technical Docs
| Data Sheet | 36V, 220kHz to 2.2MHz, 2A/3A Fully Integrated Step-Down Converters with 15µA Operating Current | Aug 11, 2020 | |
| App Note | Power Control for Automotive Applications |
Click any title below to view the detail page where available.
Description
The MAX20003 evaluation kit (EV kit) demonstrates the MAX20002/MAX20003 high-voltage, current-mode step-down converters with low operating current. The EV kit operates over a wide 3.5V to 36V input range and the output is set for 5V at 3A.
The EV kit comes with the MAX20003ATPA/V+ installed.
Features
- Wide 3.5V to 36V Input Supply Range
- Forced-PWM or Skip-Mode Operation
- Programmable Switching Frequency
- Power-Good Output
- Proven PCB Layout
- Fully Assembled and Tested
/en/design/design-tools/ee-sim.html?
 | Tools & Models EE-Sim: Design & Simulate MAX20002 | Create Design |
| SIMULATION MODELS MAX20002 SIMPLIS Schematic | Download |
Support & Training
Search our knowledge base for answers to your technical questions.
Filtered SearchOur dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal
Parameters
Parametric specs for Step-Down Switching Regulators
| VIN (V) (min) | 3.5 |
| VIN (V) (max) | 36 |
| VOUT1 (V) (min) | 1 |
| VOUT1 (V) (max) | 10 |
| IOUT1 (A) (max) | 2 |
| Switch Type | Internal |
| Preset VOUT (V) | 5 |
| Output Adjust. Method | Resistor |
| Synchronous Switching? | Yes |
| Power Good Signal | Yes |
| # DC-DC Outputs | 1 |
| Switching Frequency (kHz) | 220 2200 |
| Design Tools | EE-Sim |
| Package/Pins | TQFN-CU/20 |
| Budgetary Price (See Notes) | $2.75 @1k |
Key Features
- Synchronous DC-DC Converter with Integrated FETs
- MAX20002 = 2A
- MAX20003 = 3A
- 15µA Quiescent Current When in Standby Mode
- Small Solution Size Saves Space
- 220kHz to 2.2MHz Adjustable Frequency
- Programmable 1V to 10V Output for the Buck or Fixed 5V/3.3V Options Available
- Fixed 8ms Internal Soft-Start
- Fixed Output Voltage with ±2% Output Accuracy (5V/3.3V) or Externally Resistor Adjustable (1V to 10V) with ±1% FB Accuracy
- PGOOD Output and High-Voltage EN Input Simplify Power Sequencing
- Protection Features and Operating Range Ideal for Automotive Applications
- Operating VIN Range of 3.5V to 36V
- 42V Load-Dump Protection
- 99% Duty-Cycle Operation with Low Dropout
- -40°C to +125°C Automotive Temperature Range
- AEC-Q100 Qualified
- Fast and Accurate Overvoltage Protection Enables Fast Recovery from Automotive Transients (MAX20002C/E and MAX20003C/E)
Applications/Uses
- Distributed DC Power Systems
- Navigation and Radio Head Units
- Point-of-Load Applications in Automotive
Description
The MAX20002/MAX20003 are small, synchronous buck converters with integrated high-side and low-side MOSFETs. Each device is designed to deliver up to 2A/3A with input voltages from 3.5V to 36V, while using only 15µA quiescent current at no load. Voltage quality can be monitored by observing the PGOOD signal. The devices can operate in dropout by running at 98% duty cycle, making them ideal for automotive applications.
The devices offer fixed output voltages of 5V/3.3V, along with the ability to program the output voltage between 1V to 10V. Frequency can be programmed using a resistor to ground on the FOSC pin from 220kHz to 2.2MHz. The devices offer a forced fixed-frequency mode and skip mode with ultra-low quiescent current of 15µA. They have a pin that can be programmed to turn on/off the spread spectrum, further helping systems designers with better EMC management.
The MAX20002/MAX20003 are available in a small 5mm x 5mm 20-pin TQFN package with exposed pad and use very few external components.
The devices offer fixed output voltages of 5V/3.3V, along with the ability to program the output voltage between 1V to 10V. Frequency can be programmed using a resistor to ground on the FOSC pin from 220kHz to 2.2MHz. The devices offer a forced fixed-frequency mode and skip mode with ultra-low quiescent current of 15µA. They have a pin that can be programmed to turn on/off the spread spectrum, further helping systems designers with better EMC management.
The MAX20002/MAX20003 are available in a small 5mm x 5mm 20-pin TQFN package with exposed pad and use very few external components.
Technical Docs
| Data Sheet | 36V, 220kHz to 2.2MHz, 2A/3A Fully Integrated Step-Down Converters with 15µA Operating Current | Aug 11, 2020 | |
| App Note | Power Control for Automotive Applications |
Support & Training
Search our knowledge base for answers to your technical questions.
Filtered SearchOur dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal
Request a Quote