Product Details
Key Features
Applications/Uses
VIN (V) (min) | 3 |
VIN (V) (max) | 28 |
VOUT1 (V) (min) | 0.6 |
VOUT1 (V) (max) | 25 |
IOUT1 (A) (max) | 15 |
Switch Type | External |
Output Adjust. Method | Resistor |
Synchronous Switching? | Yes |
# DC-DC Outputs | 1 |
Switching Frequency (kHz) | 500 |
Package/Pins | UMAX/10 |
Budgetary Price (See Notes) | 2.36 |
Simplified Block Diagram
Technical Docs
Data Sheet | 3V to 28V Input, Low-Cost, Hysteretic Synchronous Step-Down Controllers | Jul 04, 2005 |
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 .
Sampling:
Selecting the Sample button above will redirect to the third-party ADI Sample Site. The part selected will carry over to your cart on this site once logged in. Please create a new account there if you have never used the site before. Contact SampleSupport@analog.com with any questions regarding this Sample Site.
Parameters
VIN (V) (min) | 3 |
VIN (V) (max) | 28 |
VOUT1 (V) (min) | 0.6 |
VOUT1 (V) (max) | 25 |
IOUT1 (A) (max) | 15 |
Switch Type | External |
Output Adjust. Method | Resistor |
Synchronous Switching? | Yes |
# DC-DC Outputs | 1 |
Switching Frequency (kHz) | 500 |
Package/Pins | UMAX/10 |
Budgetary Price (See Notes) | 2.36 |
Key Features
- 3V to 28V Supply Voltage Range
- 1.2% Accurate Over Temperature
- Adjustable Output Voltage Down to 0.6V
- 200kHz to 500kHz Switching Frequency
- Adjustable Temperature-Compensated Hiccup Current Limit
- Lossless Peak Current Sensing
- Monotonic Startup into Prebias Output (MAX8576/MAX8578)
- Startup Overvoltage Protection (MAX8577/MAX8579)
- Enable/Shutdown
- Adjustable Soft-Start
Applications/Uses
- AGP and PCI Express® Power Supplies
- Graphic-Card Power Supplies
- Motherboard Power Supplies
- Point-of-Load Power Supplies
- Set-Top Boxes
Description
Nominal switching frequency is programmable over the 200kHz to 500kHz range. High-side MOSFET sensing is used for adjustable hiccup current-limit and short-circuit protection. The MAX8576/MAX8578 can start up into a precharged output without pulling the output voltage down. The MAX8577/MAX8579 have startup output overvoltage protection (OVP), and will pull down a precharged output.
Technical Docs
Data Sheet | 3V to 28V Input, Low-Cost, Hysteretic Synchronous Step-Down Controllers | Jul 04, 2005 |
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 .
Sampling:
Selecting the Sample button above will redirect to the third-party ADI Sample Site. The part selected will carry over to your cart on this site once logged in. Please create a new account there if you have never used the site before. Contact SampleSupport@analog.com with any questions regarding this Sample Site.