Positive Linear LDO Regulators

Analog Devices Inc. Positive Linear Low Dropout (LDO) Regulators are high-performance, low dropout linear regulators. The LDOs provide very low dropout, fast transient response, as well as excellent line and load regulation. These Positive Linear Regulators from Analog Devices also offer a very wide input voltage range from 0.9V to 80V. Output currents range from 100mA to 10A with positive and multiple outputs. The LDO regulators can be used in a wide range of applications.

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Qty. RoHS ECAD Model Mounting Style
Package/Case
Output Voltage
Output Current
Number of Outputs
Polarity
Quiescent Current
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Input Voltage - Max
PSRR / Ripple Rejection - Typ
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Analog Devices LDO Voltage Regulators 800mA L Drop Pos Regs Adj & Fixed 2.85V,
Datasheet
2.217In Stock
Min.: 1
Mult.: 1
Max.: 2.141

SMD/SMT SOT-223-3 3.3 V 800 mA 1 Output Positive 5 mA 2.45 V 15 V 75 dB Fixed - 40 C + 125 C 1.1 V LT1117 Tube
Analog Devices LDO Voltage Regulators uP L Drop Regs w/ SD
Datasheet
2.767In Stock
MouseReel Available
Min.: 1
Mult.: 1
Max.: 2.767
: 2.500

SMD/SMT SOIC-8 3.75 V to 30 V 150 mA 1 Output Positive 30 uA 4.17 V 36 V 58 dB Adjustable 0 C + 125 C 400 mV LT1121 Reel, Cut Tape, MouseReel
Analog Devices LDO Voltage Regulators uP L Drop Regs w/ SD
Datasheet
1.148In Stock
Min.: 1
Mult.: 1
Max.: 1.148

SMD/SMT SOIC-8 3.75 V to 30 V 150 mA 1 Output Positive 30 uA 4.17 V 36 V 58 dB Adjustable - 40 C + 125 C 400 mV LT1121 Tube
Analog Devices LDO Voltage Regulators uP L Drop Regs w/ SD
Datasheet
884In Stock
Min.: 1
Mult.: 1
Max.: 884

SMD/SMT SOIC-8 5 V 150 mA 1 Output Positive 30 uA 4.17 V 36 V 58 dB Fixed - 40 C + 125 C 400 mV LT1121 Tube
Analog Devices LDO Voltage Regulators uP L Drop Regs w/ SD
Datasheet
378In Stock
2.500Expected 2/11/2027
MouseReel Available
Min.: 1
Mult.: 1
Max.: 2.878

SMD/SMT SOIC-8 3.75 V to 30 V 150 mA 1 Output Positive 30 uA 4.17 V 36 V 58 dB Adjustable 0 C + 125 C 400 mV LT1121 Reel, Cut Tape, MouseReel
Analog Devices LDO Voltage Regulators uP L Drop Regs w/ SD
Datasheet
498In Stock
Min.: 1
Mult.: 1
Max.: 498

SMD/SMT SOIC-8 5 V 150 mA 1 Output Positive 30 uA 4.17 V 36 V 58 dB Fixed 0 C + 125 C 400 mV LT1121 Tube
Analog Devices LDO Voltage Regulators uP L Drop Regs w/ SD
Datasheet
1.034In Stock
Min.: 1
Mult.: 1
Max.: 1.034

Through Hole PDIP-8 5 V 150 mA 1 Output Positive 30 uA 4.17 V 36 V 58 dB Fixed - 40 C + 125 C 400 mV LT1121 Tube
Analog Devices LDO Voltage Regulators uP L Drop Regs w/ SD
Datasheet
633In Stock
MouseReel Available
Min.: 1
Mult.: 1
Max.: 633

SMD/SMT SOIC-8 5 V 150 mA 1 Output Positive 30 uA 4.17 V 36 V 58 dB Fixed - 40 C + 125 C 400 mV LT1121 Reel, Cut Tape, MouseReel
Analog Devices LDO Voltage Regulators uP L Drop Regs w/ SD
Datasheet
580In Stock
Min.: 1
Mult.: 1
Max.: 580

SMD/SMT SOT-223-3 3.3 V 150 mA 1 Output Positive 30 uA 4.17 V 36 V 58 dB Fixed - 40 C + 125 C 400 mV LT1121 Tube
Analog Devices LDO Voltage Regulators uP L Drop Regs w/ SD
Datasheet
2.331In Stock
Min.: 1
Mult.: 1
Max.: 2.331

SMD/SMT SOT-223-3 5 V 150 mA 1 Output Positive 30 uA 4.17 V 36 V 58 dB Fixed - 40 C + 125 C 400 mV LT1121 Tube
Analog Devices LDO Voltage Regulators uP L Drop Regs w/ SD
Datasheet
1.176In Stock
MouseReel Available
Min.: 1
Mult.: 1
Max.: 1.176

SMD/SMT SOT-223-3 5 V 150 mA 1 Output Positive 30 uA 4.17 V 36 V 58 dB Fixed - 40 C + 125 C 400 mV LT1121 Reel, Cut Tape, MouseReel
Analog Devices LDO Voltage Regulators uP L Drop Regs w/ SD
Datasheet
1.592In Stock
1.250Expected 5/28/2027
Min.: 1
Mult.: 1
Max.: 2.412

SMD/SMT DDPAK-5 3.8 V to 30 V 700 mA 1 Output Positive 50 uA 4.15 V 30 V 64 dB Adjustable 0 C + 125 C 130 mV LT1129 Tube
Analog Devices LDO Voltage Regulators uP L Drop Regs w/ SD
Datasheet
499In Stock
550Expected 5/28/2027
Min.: 1
Mult.: 1
Max.: 962

SMD/SMT DDPAK-5 3.3 V 700 mA 1 Output Positive 50 uA 4.15 V 30 V 64 dB Fixed 0 C + 125 C 130 mV LT1129 Tube
Analog Devices LDO Voltage Regulators uP L Drop Regs w/ SD
Datasheet
2.133In Stock
Min.: 1
Mult.: 1
Max.: 2.133

SMD/SMT SOIC-8 3.8 V to 30 V 700 mA 1 Output Positive 50 uA 4.15 V 30 V 64 dB Adjustable 0 C + 125 C 130 mV LT1129 Tube
Analog Devices LDO Voltage Regulators uP L Drop Regs w/ SD
Datasheet
540In Stock
Min.: 1
Mult.: 1
Max.: 465

SMD/SMT SOIC-8 3.3 V 700 mA 1 Output Positive 50 uA 4.15 V 30 V 64 dB Fixed 0 C + 125 C 130 mV LT1129 Tube
Analog Devices LDO Voltage Regulators uP L Drop Regs w/ SD
Datasheet
449In Stock
3.198On Order
Min.: 1
Mult.: 1
Max.: 3.647

SMD/SMT SOT-223-3 5 V 700 mA 1 Output Positive 50 uA 4.15 V 30 V 64 dB Fixed 0 C + 125 C 130 mV LT1129 Tube
Analog Devices LDO Voltage Regulators uP L Drop Regs w/ SD
Datasheet
634In Stock
2.050On Order
Min.: 1
Mult.: 1
Max.: 2.585

SMD/SMT DDPAK-5 5 V 700 mA 1 Output Positive 50 uA 4.15 V 30 V 64 dB Fixed - 40 C + 125 C 130 mV LT1129 Tube
Analog Devices LDO Voltage Regulators uP L Drop Regs w/ SD
Datasheet
541In Stock
Min.: 1
Mult.: 1
Max.: 547

SMD/SMT SOIC-8 3.8 V to 30 V 700 mA 1 Output Positive 50 uA 4.15 V 30 V 64 dB Adjustable - 40 C + 125 C 130 mV LT1129 Tube
Analog Devices LDO Voltage Regulators uP L Drop Regs w/ SD
Datasheet
238In Stock
100On Order
Min.: 1
Mult.: 1
Max.: 338

SMD/SMT SOIC-8 5 V 700 mA 1 Output Positive 50 uA 4.15 V 30 V 64 dB Fixed - 40 C + 125 C 130 mV LT1129 Tube
Analog Devices LDO Voltage Regulators uP L Drop Regs w/ SD
Datasheet
1.788In Stock
1.716Expected 9/16/2027
Min.: 1
Mult.: 1
Max.: 2.600

SMD/SMT SOT-223-3 3.3 V 700 mA 1 Output Positive 50 uA 4.15 V 30 V 64 dB Fixed - 40 C + 125 C 130 mV LT1129 Tube
Analog Devices LDO Voltage Regulators uP L Drop Regs w/ SD
Datasheet
1.661In Stock
1.092Expected 12/10/2026
Min.: 1
Mult.: 1
Max.: 2.336

SMD/SMT SOT-223-3 5 V 700 mA 1 Output Positive 50 uA 4.15 V 30 V 64 dB Fixed - 40 C + 125 C 130 mV LT1129 Tube
Analog Devices LDO Voltage Regulators uP L Drop Regs w/ SD
Datasheet
1.326In Stock
2.000Expected 9/17/2026
MouseReel Available
Min.: 1
Mult.: 1
Max.: 2.877

SMD/SMT SOT-223-3 5 V 700 mA 1 Output Positive 50 uA 4.15 V 30 V 64 dB Fixed - 40 C + 125 C 130 mV LT1129 Reel, Cut Tape, MouseReel
Analog Devices LDO Voltage Regulators 300mA L Drop Regs w/ uP Q C & SD
Datasheet
2.710In Stock
MouseReel Available
Min.: 1
Mult.: 1
Max.: 2.870
: 2.500

SMD/SMT SOIC-8 3.8 V to 20 V 300 mA 1 Output Positive 12 uA 4.3 V 20 V 58 dB Adjustable 0 C + 125 C 500 mV LT1521 Reel, Cut Tape, MouseReel
Analog Devices LDO Voltage Regulators 300mA L Drop Regs w/ uP Q C & SD
Datasheet
688In Stock
Min.: 1
Mult.: 1
Max.: 688

SMD/SMT SOT-223-3 3.3 V 300 mA 1 Output Positive 12 uA 4.3 V 20 V 58 dB Fixed 0 C + 125 C 500 mV LT1521 Tube
Analog Devices LDO Voltage Regulators 300mA L Drop Regs w/ uP Q C & SD
Datasheet
1.641In Stock
Min.: 1
Mult.: 1
Max.: 1.641

SMD/SMT SOT-223-3 5 V 300 mA 1 Output Positive 12 uA 4.3 V 20 V 58 dB Fixed 0 C + 125 C 500 mV LT1521 Tube