MIC5259-3.0YD5TR Micrel Semiconductor, MIC5259-3.0YD5TR Datasheet
![no-image](/images/manufacturer_photos/0/4/435/micrel_semiconductor_sml.jpg)
MIC5259-3.0YD5TR
Manufacturer Part Number
MIC5259-3.0YD5TR
Description
Manufacturer
Micrel Semiconductor
Datasheet
1.MIC5259-1.5BD5TR.pdf
(11 pages)
Specifications of MIC5259-3.0YD5TR
Date_code
06+
Packing_info
SOT-153
General Description
The MIC5259 is an efficient CMOS voltage regulator
optimized for low-noise applications. It offers 1.5% initial
accuracy, low dropout voltage (300mV at 300mA) and low
ground current (typically 105µA at light load). The
MIC5259 provides a very-low-noise output, ideal for RF
applications where a clean voltage source is required. The
MIC5259 has a high PSRR even at low supply voltages,
critical for battery operated electronics. A noise bypass pin
is also available for further reduction of output noise.
Designed specifically for handheld and battery-powered
devices, the MIC5259 provides a TTL-logic-compatible
enable pin. When disabled, power consumption drops to
nearly zero.
The
capacitors, reducing the amount of board space necessary
for power applications; critical issue in handheld wireless
devices.
Key features include current limit, thermal shutdown, faster
transient response, and an active clamp to speed up
device turn-off. The MIC5259 is available in the 6-pin
2mm × 2mm MLF
package in a wide range of output voltages.
Data sheets and support documentation can be found on
Micrel’s web site at www.micrel.com.
Typical Application
C
Shutdown
EN (pin 3) may be
connected directly
to IN (pin 1).
MLF and MicroLeadFrame are registered trademarks of Amkor Technology, Inc.
September 2006
IN
Enable
Ceramic
= 1.0µF
MIC5259
Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com
EN
V
IN
MIC5259-x.xBD5/YD5
also
1
2
3
®
package and the 5-pin Thin SOT-23
works
5
4
with
V
C
OUT
C
Ceramic
BYP
OUT
low-ESR
= 0.01µF
= 1.0µF
SHUTDOWN
ceramic
ENABLE
C
IN
= 1.0µF
1
V
Features
• Input voltage range: 2.7V to 6.0V
• PSRR = 70dB @ 1kHz
• Low output noise: 30µV(rms)
• Stability with ceramic output capacitors
• Low-dropout: 300mV @ 300mA
• High-output accuracy:
• Low quiescent current: 105µA
• Tight load and line regulation
• TTL-Logic-controlled enable input
• “Zero” off-mode current
• Thermal shutdown and current limit protection
Applications
• Cellular phones and pagers
• Cellular accessories
• Battery-powered equipment
• Laptop, notebook, and palmtop computers
• Consumer/personal electronics
• Industrial portable electronics
• PC peripherals
EN
IN
300mA High PSRR, Low Noise µCap CMOS LDO
– 1.5% initial accuracy
– 3.0% over temperature
Ultra-Low Noise Regulator Application
MIC5259-x.xBML/YML
1
2
3
MIC5259
6
5
4
0.01µF
C
(optional)
BYP
M9999-091406
C
OUT
V
OUT
= 1.0µF