MIC5317 Datasheet, PDF (1/17 Pages) Micrel Semiconductor – High-Performance Single 150mA LDO

MIC5317
High-Performance Single 150mA LDO
General Description
The MIC5317 is a high performance 150mA low dropout
regulator offering high power supply rejection (PSRR) in
an ultra-small 1mm × 1mm package for stringent space
requirements and demanding performance. The MIC5317
operates from an input voltage from 2.5V to 6.0V and is
capable of providing the output voltages of 1.0V to 3.6V
making it ideal for USB port or 6V AC adaptor applications.
The MIC5317 offers 2% initial accuracy, low dropout
voltage (155mV @ 150mA), and low ground current
(typically 29µA). The MIC5317 can also be put into a zero-
off-mode current state, drawing virtually no current when
disabled.
The MIC5317 is available in several advanced packages
including a lead-free (RoHS-compliant) 1mm × 1mm Thin
DFN occupying only 1mm² of PCB area, a 75% reduction
in board area compared to SC-70 and 2mm × 2mm DFN
packages. It is also available in a SOT23-5 and TSOT23-5
package.
The MIC5317 has an operating junction temperature range
of –40°C to 125°C.
Datasheets and support documentation are available on
Micrel’s web site at: www.micrel.com.
Features
• Tiny 1mm × 1mm Thin DFN, SOT23-5 and
TSOT23-5 packages
• Wide 2.5V to 6V operating range
• 150mA guaranteed output current
• Stable with 1µF ceramic output capacitors
• Low dropout voltage: 155mV @ 150mA
• Excellent load/line transient response
• Low quiescent current: 29µA
• High PSRR: 70dB
• Thermal-shutdown and current-limit protection
Applications
• USB dongles
• Wireless LANs
• PC Desktops, laptops, and tablets
• Battery-powered equipment
• Digital still and video cameras
• 5V general purpose
Typical Application
Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel [phone] • fax + 1 [phone] • http://www.micrel.com
August 23, 2013
Revision 1.0