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Semiconductor
S1117AD/S1117-xxD
Adjustable and Fixed LDO Voltage Regulator
Descriptions
The S1117 series of positive adjustable and fixed regulators are designed to provide 1A
with higher efficiency. All internal circuitry is designed to operate down to 1.3V input to
output differential. On-chip trimming adjusts reference voltage to 2%
Features
• Adjustable or Fixed output
• Output Current of 1A
• Low Dropout, 1.3V maximum at 1A Output Current
• Thermal Shutdown Protection
• Fast Transient Response
Ordering Information
Type NO.
Marking
Package Code
S1117AD/S1117xxD
S1117□□D/S1117□□□D
D-PAK
□□:Voltage Code (Aj : 1.25V, 15:1.5V,:18: 1.8V, 25:2.5V, 33:3.3V, 50:5.0V)
□□□:Voltage Code (285:2.85V)
Outline Dimensions (Unit : mm )
BLOCK DIAGRAM
PIN Connections
1. GND/ADJ
2,4 Output voltage
3. Input voltage
KSI-2067-003
1