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Charge Pumps 
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MyMaxim SubscriptionsProduct Details
Key Features
Applications/Uses
Simplified Block Diagram
Technical Docs
| Data Sheet | Regulated 5V USB Charge Pump with Programmable Current Limit | Jul 28, 2006 |
Support & Training
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Filtered SearchOur dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .
Key Features
- Regulated 5V Output Up to 125mA
- Indefinite Short-Circuit Protection
- Adjustable Output Current Limit
- No Inductors Required
- 0.1µA Shutdown Current
- Thermal Shutdown
- Fault Output Indicates Overcurrent or Output Voltage Out of Regulation
- 2.95V to 5.5V Input Voltage Range
- 10-Pin µMAX Package
Applications/Uses
- 3.3V to 5V Local Conversion Applications
- Battery-Powered Applications
- Flash Memory Supplies
- USB Host Devices
Description
The MAX5008 charge-pump regulator generates a regulated 5V output up to 125mA with a 2.95V to 5.5V input voltage range. The device includes resistor-programmable overcurrent limit. The MAX5008 requires a minimum number of external components for normal operation. The high 1MHz switching frequency allows the use of small surface-mount ceramic capacitors.
The fault-protection circuitry limits the output current when it exceeds the limit set by an external resistor. The output current can range from 1mA to 150mA to accommodate circuit requirements. A FAULT-bar output indicates when the device is in current limit or the output is out of regulation.
A low-power shutdown mode reduces supply current to less than 1µA and places the output in a high-impedance state. The MAX5008 is offered in a space-saving 10-pin µMAX® package that is only 1.1mm high.
The fault-protection circuitry limits the output current when it exceeds the limit set by an external resistor. The output current can range from 1mA to 150mA to accommodate circuit requirements. A FAULT-bar output indicates when the device is in current limit or the output is out of regulation.
A low-power shutdown mode reduces supply current to less than 1µA and places the output in a high-impedance state. The MAX5008 is offered in a space-saving 10-pin µMAX® package that is only 1.1mm high.
Technical Docs
| Data Sheet | Regulated 5V USB Charge Pump with Programmable Current Limit | Jul 28, 2006 |
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 .
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