February 2006 5 Micrel, Incorporated
LDO R egulator Selection Guide
IGND VDROPOUT
Device IOUT V
OUT VIN (typ.) (typ.) Comments
(2mm x 2mm) MLF-6 Package, θJA = 90°C/W
MIC5247 150mA 1.5, 1.6, 1.8, 1.85 2.7V to 6V 85µA 150mV µCap LDO
MIC5252 150mA 2.5, 2.8, 2.85, 3.0 2.7V to 6V 90µA 135mV Low Noise µCap LDO
MIC5255 150mA 2.8, 2.85, 3.0, 3.3 2.7V to 6V 90µA 135mV Low Noise µCap LDO
MIC5305 150mA 1.5, 1.8, 2.5, 2.6, 2.7, 2.8, 2.85, 2.9, 2.25V to 5.5V 90µA 60mV High PSRR µCap LDO
3.0, 3.3, 4.75, Adj.
MIC5219 500mA 2.8, 3.0, 3.3 2.5V to 12V 80µA 300mV Low Noise LDO
MIC5259 New! 300mA 1.5, 1.8, 2.5, 2.8, 2.85, 3.0, 3.3, 4.75 2.7V to 6V 90µA 300mV Low Noise LDO
MIC5319 500mA 1.375, 1.8, 1.85, 2.5, 2.8, 2.9, 3.0, 3.3, 5.0, Adj. 2.5V to 5.5V 90µA 200mV High PSRR Low Noise µCap LDO
(3mm x 3mm) MLF-8 Package, θJA = 60°C/W
MIC5209 500mA Adj. 2.5V to 16V 80µA 300mV Low Noise
(3mm x 3mm) MLF-10 Package, θJA = 60°C/W
MIC68200 New! 2A 1.8, 2.5, 3.3, Adj. 1.65V to 5.5V 42mA 330mV 2A LDO with Tracking, Sequencing and Ramp Control
SC-70 Package, θJA = 450°C/W
MIC5213 80mA 2.5, 2.6, 2.7, 2.8, 3.0, 3.3, 3.6, 5.0 2.5V to 16V 180µA 300mV µCap LDO
MIC5253 100mA 1.5, 1.8, 1.85, 2.5, 2.6, 2.7, 2.8, 2.9, 3.0, 3.1, 3.2, 3.3 2.7V to 6V 100µA 165mV µCap LDO
SOT-23-4 Package, θJA = 235°C/W
MIC5203 80mA 2.8, 3.0, 3.3, 3.6, 3.8, 4.0, 4.5, 5.0 2.5V to 16V 180µA 300mV µCap LDO
SOT-23-5 Package, θJA = 235°C/W (Low-Profi le TSOT23-5)(1)
MIC5231 10mA 2.75, –2.85, 3.0, 3.3, 5.0 3.5V to 12V 650nA 150mV µCap LDO
MIC5270 100mA –3.0, –4.1, –5.0, Adj. –2V to –16V 35µA 480mV Negative µCap LDO
MIC5271 100mA –3.0, –5.0, Adj. –3.3V to –16V 35µA 480mV Negative µCap LDO
MIC5203 80mA 2.8, 3.0, 3.3, 3.6, 3.8, 4.0, 4.5, 5.0 2.5V to 16V 180µA 300mV µCap LDO
MIC5233 100mA 1.8, 2.5, 3.0, 3.3, 5.0, Adj. 2.3V to 36V 18µA 270mV µCap LDO
MIC5205 150mA 2.5, 2.7, 2.8, 2.85, 2.9, 3.0, 3.1, 3.2, 3.3, 2.5V to 16V 80µA 165mV Low Noise LDO
3.6, 3.8, 4.0, 5.0, Adj.
MIC5206 150mA 2.5, 2.7, 3.0, 3.2, 3.3, 3.6, 3.8, 4.0, 5.0 2.5V to 16V 80µA 165mV Low Noise LDO w/Error Flag
MIC5235 150mA 1.5, 1.8, 2.5, 2.7, 3.0, 3.3, 3.6, 5.0, Adj. 2.3V to 24V 18µA 310mV µCap LDO
MIC5238 150mA 1.0, 1.1, 1.2, 1.3 1.5V to 6V VIN, 2.3V to 6V VBIAS 23µA 310mV Low Voltage, Dual Supply µCap LDO
MIC5245 150mA Not Recommended For New Designs; See MIC5255
MIC5246 150mA Not Recommended For New Designs; See MIC5255
MIC5247 150mA 1.5, 1.6, 1.8, 1.85, 2.0, 2.4 2.7V to 6V 85µA 150mV µCap LDO
MIC5248 150mA 1.2 2.7V to 6V 85µA n/a µCap LDO w/Power Good
MIC5252 150mA 1.8, 2.5, 2.8, 2.85, 3.0, 4.75 2.7V to 6V 90µA 135mV Low Noise µCap LDO
MIC5255 150mA 2.5, 2.6, 2.7, 2.75, 2.8, 2.85, 2.9, 3.0, 3.1, 3.2, 3.3, 3.5 2.7V to 6V 90µA 135mV Low Noise µCap LDO
MIC5256 150mA 2.5, 2.6, 2.7, 2.8, 2.85, 2.9, 3.0, 3.1, 3.3 2.7V to 6V 90µA 135mV Low Noise µCap LDO w/Error Flag
MIC5258 150mA 1.2 2.7V to 6V 85µA n/a µCap LDO w/Always On Power Good
MIC5207 180mA 1.8, 2.5, 2.8, 2.9, 3.0, 3.1, 3.2, 3.3, 3.6, 3.8, 4.0, 5.0, Adj. 2.5V to 16V 80µA 165mV Low Noise LDO
MIC5216 500mA 2.5, 3.3, 3.6, 5.0 2.5V to 12V 80µA 300mV Low Noise LDO w/Error Flag
MIC5219 500mA 2.5, 2.6, 2.7, 2.8, 2.85, 2.9, 3.0, 3.1, 3.3, 3.6, 5.0, Adj. 2.5V to 12V 80µA 300mV Low Noise LDO
Thin SOT-23-5 Package, θJA = 235°C/W
MIC5207 180mA 1.8 2.5V to 16V 80µA 165mV Low Noise LDO
MIC5232 10mA 1.2, 1.5, 1.8, 2.5, 3.3 2.7V to 6V 1.2µA 300mV Ultra-low IQ, 10mA LDO with Back-bias Protection
MIC5238 150mA 1.0, 1.1, 1.2, 1.3 1.5V to 6V VIN, 2.3V to 6V VBIAS 23µA 310mV Low Voltage, Dual Supply µCap LDO
MIC5247 150mA 1.8, 2.0 2.7V to 6V 85µA 150mV µCap LDO
MIC5255 150mA 2.5, 2.6, 2.7, 2.8, 2.85, 2.9, 3.0, 3.3 2.7V to 6V 90µA 135mV Low Noise µCap LDO
MIC5256 150mA 2.85 2.7V to 6V 90µA 135mV Low Noise µCap LDO w/Error Flag
MIC5265 150mA 1.5, 1.8, 1.85, 2.5, 2.6, 2.7, 2.8, 2.85, 2.9, 3.0, 3.1, 3.3 2.7V to 5.5V 75µA 210mV 150mA µCap LDO
MIC5305 150mA 1.5, 1.8, 2.5, 2.6, 2.7, 2.8, 2.85, 2.9, 3.0, 3.3, 4.25 2.25V to 5.5V 90µA 60mV High PSRR Low Noise µCap LDO
MIC5306 150mA 1.5, 1.8, 2.8 2.25V to 5.5V 16µA 60mV Ultra-low IQ, 150mA µCap LDO
MIC5319 500mA 1.8, 1.85, 2.7, 2.8 2.5V to 5.5V 90µA 200mV High PSRR Low Noise µCap LDO
1. For Low Profi le TSOT23-5, contact factory for availability.