MIC5239-1.8BM Micrel Inc, MIC5239-1.8BM Datasheet - Page 12

• Manufacturer Part Number: MIC5239-1.8BM
• Description: IC REG LDO 500MA 1.8V 8-SOIC
• Manufacturer: Micrel Inc

Specifications of MIC5239-1.8BM

• Regulator Topology: Positive Fixed
• Voltage - Output: 1.8V
• Voltage - Input: 2.3 ~ 30 V
• Voltage - Dropout (typical): 0.35V @ 500mA
• Number Of Regulators: 1
• Current - Output: 500mA
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 8-SOIC (3.9mm Width)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Current - Limit (min): -

Adjustable Regulator Application
Micrel
December 2007
Figure 10. Adjustable Voltage Application
12
The MIC5239YM can be adjusted from 1.24V to 20V by
using two external resistors (Figure 10). The resistors
set the output voltage based on the following equation:
Feedback resistor R2 should be no larger than 300kΩ.
Where V
V
OUT
=
V
REF
REF
= 1.23V.
⎛
⎜
⎝
1
+
R2
R1
⎞
⎟
⎠
M9999-121007
MIC5239