LD1117XX12 STMicroelectronics, LD1117XX12 Datasheet - Page 4

• Manufacturer Part Number: LD1117XX12
• Description: Fixed low drop positive voltage regulator
• Manufacturer: STMicroelectronics

Specifications of LD1117XX12

• Fixed Output Voltage Of: 1.2 V, 1.8 V, 2.5 V, 3.3 V, 5.0 V
• Supply Voltage Rejection: 75 dB (typ.)

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Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Pin connections (top view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Application circuit (for 1.2 V) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Application circuit (for other fixed output voltages) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Negative supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Active terminator for SCSI-2 bus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Circuit for increasing output voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Voltage regulator with reference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Battery backed-up regulated supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Post-regulated dual supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Adjustable output voltage application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Adjustable output voltage application with improved ripple rejection . . . . . . . . . . . . . . . . . 24
Drawing dimension TO-220 (type STD-ST Dual Gauge) . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Drawing dimension TO-220 (type STD-ST Single Gauge) . . . . . . . . . . . . . . . . . . . . . . . . . 27
Drawing dimension tube for TO-220 Dual Gauge (mm.) . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Drawing dimension tube for TO-220 Single Gauge (mm.) . . . . . . . . . . . . . . . . . . . . . . . . . 28
Drawing dimension DPAK (type STD-ST) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Drawing dimension DPAK (type Fujitsu-subcon.) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Drawing dimension DPAK (type IDS-subcon.) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
DPAK footprint recommended data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Doc ID 2572 Rev 31
LD1117xx