MIC5233-1.8BM5 TR Micrel Inc, MIC5233-1.8BM5 TR Datasheet - Page 8
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MIC5233-1.8BM5 TR
Manufacturer Part Number
MIC5233-1.8BM5 TR
Description
IC REG LDO 100MA 1.8V SOT23-5
Manufacturer
Micrel Inc
Datasheet
1.MIC5233-5.0YM5_TR.pdf
(9 pages)
Specifications of MIC5233-1.8BM5 TR
Regulator Topology
Positive Fixed
Voltage - Output
1.8V
Voltage - Input
2.3 ~ 36 V
Voltage - Dropout (typical)
0.27V @ 100mA
Number Of Regulators
1
Current - Output
100mA
Operating Temperature
-40°C ~ 125°C
Mounting Type
Surface Mount
Package / Case
SOT-23-5, SC-74A, SOT-25
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Current - Limit (min)
-
Other names
MIC5233-1.8BM5TR
MIC5233-1.8BM5TR
MIC5233-1.8BM5TR
Assuming a lower output current of 10mA, the maximum
input voltage can be recalculated:
Maximum input voltage for a 10mA load current at 50°C
ambient temperature is 34.9V, utilizing virtually the entire
operating voltage range of the device.
Adjustable Regulator Application
The MIC5233BM5 can be adjusted from 1.24V to 20V by
using two external resistors (Figure 1). The resistors set
the output voltage based on the following equation:
Micrel, Inc.
September 2009
319mW = (V
349mW = V
V
IN
= 34.9V
IN
IN
× 10.1mA
– 3V)10mA + V
IN
× 0.1mA
8
Feedback resistor R2 should be no larger than 300kΩ.
Where V
V
OUT
1.0µF
Figure 1. Adjustable Voltage Application
=
V
IN
V
REF
REF
⎛
⎜
⎜
⎝
1
= 1.24V.
+
⎛
⎜
⎜
⎝
R
R
IN
EN
1
2
MIC5233BM5
⎞
⎟
⎟
⎠
⎞
⎟
⎟
⎠
GND
OUT
ADJ.
R
R
1
2
M9999-092109
V
2.2µF
OUT
MIC5233