MIC5317
High-Performance Single 150mA LDO
Features
General Description
• Tiny 1mm × 1mm Thin DFN, SOT23-5 and
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.
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
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.
• High PSRR: 70dB
• Thermal-shutdown and current-limit protection
Applications
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.
• USB dongles
• Wireless LANs
• PC Desktops, laptops, and tablets
• Battery-powered equipment
• Digital still and video cameras
• 5V general purpose
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.
Typical Application
Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com
Revision 1.0
August 23, 2013