MIC5239-1.8YS TR Micrel Inc, MIC5239-1.8YS TR Datasheet - Page 12

• Manufacturer Part Number: MIC5239-1.8YS TR
• Description: High Vin, Low Iq Regulator ( )
• Manufacturer: Micrel Inc

Specifications of MIC5239-1.8YS TR

• 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: SOT-223 (3 leads + Tab), SC-73, TO-261
• Voltage Regulator Type: Linear
• Topology: LDO
• Regulator Output Type: Fixed
• Polarity Type: Positive
• Number Of Outputs: Single
• Input Voltage (min): 2.3V
• Input Voltage (max): 30V
• Output Voltage: 1.8V
• Package Type: SOT-223
• Output Current: 500mA
• Load Regulation: 30mV
• Line Regulation: 0.5%
• Output Voltage Accuracy: ±1%
• Operating Temp Range: -40C to 125C
• Operating Temperature Classification: Automotive
• Dropout Voltage@current (max): 0.35@150uA
• Dropout Voltage@current (typ): 0.05@100uA
• Pin Count: 3 +Tab
• Mounting: Surface Mount
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Limit (min): -
• Lead Free Status / Rohs Status: Compliant
• Other names: MIC5239-1.8YSTR; MIC5239-1.8YSTR

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