LDO Linear Regulators
Analog Devices manufactures a broad line of high performance low dropout (LDO) linear regulators. These LDO linear regulators offer very low dropout, fast transient response, and excellent line and load regulation, features that add performance value to end applications in Wired/Wireless and Audio Systems, FPGA/DSP/µC Power, and RF and instrumentation. The wide selection of our LDO Linear Regulators offer a great variety of features that meet your need in any design, whether it's low noise, high PSRR, or compact packaging.
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Latest Resources
Application Notes
- AN-1421: Paralleling the ADP1763 LDO Regulators for High Output Current Applications (Rev. 0) PDF
- AN159 - Measuring 2nV/√Hz Noise and 120dB Supply Rejection on Linear Regulators PDF
- AN-1120: Noise Sources in Low Dropout (LDO) Regulators (Rev. 0) PDF
- AN52 - Linear Technology Magazine Circuit Collection, Volume 1 PDF
- AN65 - A Fourth Generation of LCD Backlight Technology PDF
Press Release
- Negative Output, 500mA Low Dropout Linear Regulator Has Ultralow Noise & Ultrahigh PSRR
- 3A, 95mV Low Dropout LDO Features Low Power Loss in a Small 3mm × 4mm Footprint
- 3.2MHz, Automotive Grade Quad 1A Step-Down Regulators + LDO Reduces Footprint & EMI
- Multi-output Regulators with Supervisory and Watchdog Timers Reduce Component Count, Increase Power Density and Reliability
Design Notes
- Multichannel RF-to-Bits Development Platform Enables Rapid Prototyping for Phased Arrays
- Powering Altera Arria 10 FPGA and Arria 10 SoC: Tested and Verified Power Management Solutions
- Dual Linear Regulator for Digital IC Power Enables On-the-Fly Output Adjustment and Dynamic Headroom Optimization
- Negative Linear Regulator Features 0.8 µV RMS Noise and 74 dB Power Supply Rejection Ratio at 1 MHz
- DN228 - Isolated RS485 Transceiver Breaks Ground Loops PDF
Product Selector Card
- DC/DC Controller Selection Guide PDF
- High Performance Low Dropout Linear Regulators (LDOs) PDF
- New 3-Terminal Regulators Add Functionality PDF
- Military Plastic Products PDF
- Low Noise LDO Regulator Protects Against Fault Conditions PDF
Technical Articles
- Bypass Capacitor and Coupling Capacitor: Stabilizing Voltage the Right Way
- The Elegance of a Flyback Controller Without a Dedicated Isolated Feedback Path
- Bipolar Power Solutions for Precision Test and Measurement Systems
- Generation of Low Noise Voltages
- ADIsimPower Provides Robust, Customizable DC-DC Converter Designs
Product Selection Guide
Circuit Note
- CN0343: Ultrasonic Distance Measurement PDF
- CN0228: Single Supply Powers a 28 V, High Voltage Phase-Locked Loop (PLL) Synthesizer PDF
- CN0305: A 16-Bit, 300 kSPS Low Power Successive Approximation ADC System with Optimum Low Power Drive Amplifier for Sub-Nyquist Input Signals Up to 4 kHz PDF
- CN0319: 14-Bit, 4-20 mA, Loop Powered, Ther mocouple Temperature Measurement System Using ARM Cortex-M3 PDF
- CN0276: High Performance, 10-Bit to 16-Bit Resolver-to-Digital Converter PDF
Solutions Bulletins & Brochures
Videos
- New Now Hear This! Meet the Next-Generation Soundbar
- New Non-contact Vital Sign Monitoring by Analog Devices
- Analog Devices @ IMS Virtual Conference 2020 Recap Highlight
- 5G O-RAN O-RU Radio Unit from Analog Devices & Partners
- 16Tx/16Rx L/S-Band Phased Array Radar & EW Prototyping Platform
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Frequently Asked Question
LDO Linear Regulators
| SortOrder | Part# | Number of Outputs | Vin (min) (V) | Vin (max) (V) | Output Current (typ) (A) | Output Current 2 (typ) (A) | Output Voltage | Isupply (typ) (A) | RMS Noise (typ) (V) | Dropout Voltage (typ) (V) | Price (1000+) ($ US) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | LT3072 | 2 | 900m | 3.45 | 2.5 | 2.5 | Adj | 7m | 12µ | 80m | $4.20 (LT3072EUFF#PBF) |
| 2 | LT3093 | 1 | -20 | -1.8 | 200m | - | Adj | 2.35m | 800n | 190m | $2.25 (LT3093EDD#PBF) |
| 3 | LT3040 | 1 | 1.8 | 20 | 200m | - | Adj | 1.9m | 1.2µ | 350m | $2.25 (LT3040EDD#PBF) |
| 4 | LT3094 | 1 | -20 | -1.8 | 500m | - | Adj | 2.35m | 800n | 235m | $2.80 (LT3094EDD#PBF) |
| 5 | LT3033 | 1 | 950m | 10 | 3 | - | Adj | 1.9m | 60µ | 95m | $3.05 (LT3033EUDC#PBF) |
| 6 | LT3070-1 | 1 | 950m | 3 | 5 | - | Adj | 1m | 25µ | 85m | $4.20 (LT3070EUFD-1#PBF) |
| 7 | LT3045-1 | 1 | 1.8 | 20 | 500m | - | Adj | 2.2m | 800n | 260m | $2.80 (LT3045EDD-1#PBF) |
| 8 | ADP7185 | 1 | -5.5 | -2 | 500m | - | -0.5, -1, -1.2, -1.5, -1.8, -2.5, -3, -3.3, Adj | 600µ | 5µ | 190m | $1.65 (ADP7185ACPZN0.5-R7) |
| 9 | ADP1765 | 1 | 1.1 | 1.98 | 5 | - | 0.85, 0.9, 0.95, 1.0, 1.1, 1.2, 1.25, 1.3, 1.5 | 5m | 2µ | 59m | $6.79 (ADP1765ACPZ0.85-R7) |
| 10 | ADP1764 | 1 | 1.1 | 1.98 | 4 | - | 0.85, 0.9, 0.95, 1.0, 1.1, 1.2, 1.25, 1.3, 1.6 | 5m | 2µ | 47m | $5.29 (ADP1764ACPZ0.85-R7) |
| 11 | LT3045 | 1 | 1.8 | 20 | 500m | - | Adj | 2.4m | 800n | 260m | $2.80 (LT3045EDD#PBF) |
| 12 | ADP7183 | 1 | -5.5 | -2 | 300m | - | -0.5, -1, -1.2, -1.5, -1.8, -2.5, -3, -3.3, Adj | 600µ | 4µ | 130m | $1.45 (ADP7183ACPZN0.5-R7) |
| 13 | LT3089 | 1 | 1.2 | 36 | 800m | - | Adj | 1.1m | 27µ | 1.47 | $2.13 (LT3089EDF#PBF) |
| 14 | ADP7159 | 1 | 2.3 | 5.5 | 2 | - | Adj | 4m | 1.6µ | 200m | $3.05 (ADP7159ACPZ-01-R7) |
| 15 | ADP7158 | 1 | 2.3 | 5.5 | 2 | - | 1.2, 1.8, 2.5, 2.8, 3.0, 3.3 | 4m | 1.6µ | 200m | $3.05 (ADP7158ACPZ-1.2-R7) |
| 16 | ADP7157 | 1 | 2.3 | 5.5 | 1.2 | - | Adj | 4m | 1.6µ | 120m | $2.69 (ADP7157ACPZ-01-R7) |
| 17 | ADP7156 | 1 | 2.3 | 5.5 | 1.2 | - | 1.2, 1.8, 2.5, 2.8, 3.0, 3.3 | 4m | 1.6µ | 120m | $2.69 (ADP7156ACPZ-1.2-R7) |
| 18 | ADP1763 | 1 | 1.1 | 1.98 | 3 | - | 0.9, 0.95, 1, 1.1, 1.2, 1.25, 1.3, 1.5 | 4.5m | 2µ | 95m | $3.99 (ADP1763ACPZ0.95-R7) |
| 19 | ADP1762 | 1 | 1.1 | 1.98 | 2 | - | 0.9, 0.95, 1, 1.1, 1.2, 1.25, 1.3, 1.5 | 4.5m | 2µ | 62m | $3.49 (ADP1762ACPZ0.95-R7) |
| 20 | ADP1761 | 1 | 1.1 | 1.98 | 1 | - | 0.9, 0.95, 1, 1.1, 1.2, 1.25, 1.3, 1.5 | 4.5m | 2µ | 30m | $3.09 (ADP1761ACPZ0.95-R7) |
| 21 | LT3066 | 1 | 1.8 | 45 | 500m | - | Adj | 64µ | 25µ | 300m | $2.00 (LT3066EDE#PBF) |
| 22 | LT3091 | 1 | -36 | -1.5 | 1.5 | - | -Adj | 1.2m | 18µ | 300m | $2.87 (LT3091EDE#PBF) |
| 23 | LT3088 | 1 | 1.2 | 36 | 800m | - | Adj | 400µ | 27µ | 1.35 | $1.95 (LT3088EST#PBF) |
| 24 | RH1965 | 1 | 1.8 | 20 | 900m | - | Adj | 500µ | 40µ | 310m | - |
| 25 | LT3042 | 1 | 1.8 | 20 | 200m | - | Adj | 2m | 800n | 350m | $2.25 (LT3042EDD#PBF) |
| 26 | LT3062 | 1 | 1.6 | 45 | 200m | - | Adj | 45µ | 30µ | 300m | $1.60 (LT3062EDCB#TRPBF) |
| 27 | LT3061 | 1 | 1.6 | 45 | 100m | - | Adj | 45µ | 30µ | 250m | $1.55 (LT3061EDCB#TRPBF) |
| 28 | ADP7142 | 1 | 2.7 | 40 | 200m | - | 1.8, 2.5, 3.3, 5, Adj | 50µ | 11µ | 200m | $1.10 (ADP7142ACPZN1.8-R7) |
| 29 | ADP7118 | 1 | 2.7 | 20 | 200m | - | 1.8, 2.5, 3.3, 5 | 50µ | 11µ | 200m | $0.77 (ADP7118ACPZN1.8-R7) |
| 30 | ADP7112 | 1 | 2.7 | 20 | 200m | - | 1.8, 2.5, 3.3, 5 | 50µ | 11µ | 200m | $0.53 (ADP7112ACBZ-1.2-R7) |
| 31 | ADP166 | 1 | 2.2 | 5.5 | 150m | - | 1.2, 1.8, 2.2, 2.3, 2.85, 3, 3.3 | 590n | 105µ | 120m | $0.35 (ADP166ACBZ-1.2-R7) |
| 32 | ADP165 | 1 | 2.2 | 5.5 | 150m | - | 1.2, 1.8, 2.2, 2.3, 2.85, 3, 3.3 | 590n | 105µ | 120m | $0.35 (ADP165ACBZ-1.2-R7) |
| 33 | ADM7155 | 1 | 2.3 | 5.5 | 600m | - | Adj | 6.5m | 1.6µ | 120m | $2.14 (ADM7155ACPZ-01-R7) |
| 34 | ADM7154 | 1 | 2.3 | 5.5 | 600m | - | 1.2, 1.8, 2.5, 2.8, 3.0, 3.3 | 4m | 1.6µ | 120m | $2.14 (ADM7154ACPZ-1.2-R7) |
| 35 | RH3083MK | 1 | 1.2 | 23 | 2.8 | - | Adj | 350µ | 40µ | 310m | - |
| 36 | LT3063 | 1 | 1.6 | 45 | 200m | - | Adj | 45µ | 30µ | 300m | $1.67 (LT3063EDCB#TRPBF) |
| 37 | ADM7172 | 1 | 2.3 | 6.5 | 2 | - | 1.3, 1.8, 2.5, 3.0, 3.3, 4.2, 5.0 | 700µ | 5µ | 172m | $1.79 (ADM7172ACPZ-1.3-R7) |
| 38 | ADM7171 | 1 | 2.3 | 6.5 | 1 | - | 1.3, 1.8, 2.5, 3.0, 3.3, 4.2, 5.0 | 700µ | 5µ | 84m | $1.19 (ADM7171ACPZ-1.3-R7) |
| 39 | ADM7170 | 1 | 2.3 | 6.5 | 500m | - | 1.3, 1.8, 2.5, 3.0, 3.3, 4.2, 5.0 | 700µ | 5µ | 42m | $0.88 (ADM7170ACPZ-1.3-R7) |
| 40 | LT3065 | 1 | 1.8 | 45 | 500m | - | 1.2, 1.5, 1.8, 2.5, 3.3, 5, Adj | 55µ | 25µ | 300m | $1.85 (LT3065EDD#PBF) |
| 41 | LT3090 | 1 | -36 | -1.5 | 600m | - | -Adj | 1m | 18µ | 300m | $2.15 (LT3090EDD#PBF) |
| 42 | ADM7151 | 1 | 4.5 | 16 | 800m | - | Adj | 4.3m | 1.6µ | 600m | $3.64 (ADM7151ACPZ-02-R7) |
| 43 | ADM7150 | 1 | 4.5 | 16 | 800m | - | 1.8, 2.8, 3.0, 3.3, 4.5, 4.8, 5.0 | 4.3m | 1.6µ | 600m | $3.64 (ADM7150ACPZ-1.8-R7) |
| 44 | LT3081 | 1 | 1.2 | 36 | 1.5 | - | Adj | 1.1m | 27µ | 1.21 | $2.60 (LT3081EDF#PBF) |
| 45 | LT3055 | 1 | 2 | 45 | 500m | - | Adj | 65µ | 25µ | 350m | $2.20 (LT3055EDE#PBF) |
| 46 | ADP7105 | 1 | 3.3 | 20 | 500m | - | 1.8, 3.3, 5.0, Adj | 400µ | 15µ | 350m | $1.43 (ADP7105ACPZ-1.8-R7) |
| 47 | LT3030 | 2 | 1.8 | 20 | 750m | 250m | Adj | 120µ | 20µ | 300m | $3.27 (LT3030EFE#PBF) |
| 48 | LT3007 | 1 | 2 | 45 | 20m | - | 1.2, 1.5, 1.8, 2.5, 3.3, 5, Adj | 3µ | 92µ | 300m | $1.20 (LT3007ETS8#TRPBF) |
| 49 | ADP7182 | 1 | -28 | -2.7 | 200m | - | -1.2, -1.5, -1.8, -2.5, -3, 5, -5 | 33µ | 18µ | 185m | $1.29 (ADP7182ACPZN-1.2R7) |
| 50 | ADM7160 | 1 | 2.2 | 5.5 | 200m | - | 1.8, 2.5, 3.3 | 10µ | 9µ | 150m | $0.44 (ADM7160ACPZN1.8-R7) |
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