amsm1117  adjustable & fixed voltage ldo linear regulator

general description

有800ma,1a兩種  

the amsl1117 is a low-dropout linear regulator that operates in the input voltage range from +2.5v to +7.0v and delivers 1.0a output current.

the amsl1117 is available in two types, fixed output voltage type or adjustable output voltage type. the fixed output voltage type is preset at an internally trimmed voltage 1.8v, 2.5v, or 3.3v. other options 1.5v, 2.85v, 3.0v and 3.6v are available by special order only. the output voltage range of the adjustable type is from 1.25v to 5v.

the amsl1117 consists of a 1.25v band gap reference, an error amplifier, and a p-channel pass transistor. other features include short-circuit protection and thermal shutdown protection. the amsl1117 devices are available in sot-223 and to-252 packages.

features

• ø high output voltage accuracy
• ø fixed output voltage:±35mv
• ø adjustable output voltage:±50mv
• ø small output capacitor
• ø output current limit
• ø thermal overload shutdown protection
• ø sot-223 and to-252 packages
• ø active scsi terminators
• ø high efficiency linear regulators
• ø monitor microprocessors
• ø low voltage micro-controllers
• ø post regulator for switching power

applications