Catalog
20 V, 500mA, Low Noise, CMOS LDO
| Part | Voltage - Input [Min] | Voltage - Input [Max] | Voltage - Output | Current - Output | Regulator Type | Board Type | Utilized IC / Part | Channels per IC | Supplied Contents | Output Type | Voltage - Output (Max) [Max] | Current - Quiescent (Iq) | Number of Regulators | Current - Supply (Max) [Max] | Package / Case | Control Features | Output Configuration | Supplier Device Package | Voltage - Input (Max) [Max] | Voltage Dropout (Max) [Max] | Mounting Type | Operating Temperature [Max] | Operating Temperature [Min] | Voltage - Output [Min] | Voltage - Output [Max] | Output Type | Voltage - Output (Min/Fixed) | Package / Case | Package / Case |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 Analog Devices | 3.3 V | 20 V | 3.3 V | 500 mA | Positive Fixed | Fully Populated | ADP7104 | 1 - Single | Board(s) | ||||||||||||||||||||
 Analog Devices | 500 mA | Adjustable | 19.45 V | 900 µA | 1 | 1.6 mA | 8-WFDFN Exposed Pad CSP | Enable Power Good Under Voltage Lockout | Positive | 8-LFCSP-WD (3x3) | 20 V | 0.55 V | Surface Mount | 125 °C | -40 °C | ||||||||||||||
 Analog Devices | 3.3 V | 20 V | 500 mA | Positive Adjustable | Fully Populated | ADP7104 | 1 - Single | Board(s) | 1.22 V | 19.45 V | |||||||||||||||||||
 Analog Devices | 500 mA | 900 µA | 1 | 1.6 mA | 8-SOIC | Enable Power Good Under Voltage Lockout | Positive | 8-SOIC-EP | 20 V | 0.55 V | Surface Mount | 125 °C | -40 °C | 1.81 mOhm | 3.3 V | 0.154 in | 3.9 mm | ||||||||||||
 Analog Devices | 3.3 V | 20 V | 500 mA | Positive Adjustable | Fully Populated | ADP7104 | 1 - Single | Board(s) | 1.22 V | 19.45 V | |||||||||||||||||||
Analog Devices | 500 mA | 900 µA | 1 | 1.6 mA | 8-WFDFN Exposed Pad CSP | Enable Power Good Under Voltage Lockout | Positive | 8-LFCSP-WD (3x3) | 20 V | 0.55 V | Surface Mount | 125 °C | -40 °C | 1.81 mOhm | |||||||||||||||
Analog Devices | 500 mA | 900 µA | 1 | 1.6 mA | 8-SOIC | Enable Power Good Under Voltage Lockout | Positive | 8-SOIC-EP | 20 V | 0.55 V | Surface Mount | 125 °C | -40 °C | 1.81 mOhm | 0.154 in | 3.9 mm | |||||||||||||
Analog Devices | 500 mA | 900 µA | 1 | 1.6 mA | 8-WFDFN Exposed Pad CSP | Enable Power Good Under Voltage Lockout | Positive | 8-LFCSP-WD (3x3) | 20 V | 0.55 V | Surface Mount | 125 °C | -40 °C | 1.81 mOhm | 9 V |
Key Features
• Input voltage range: 3.3 V to 20 V
• Maximum output current: 500 mA
• Low Noise: 15 μV rms for fixed output versions
• PSRR Performance of 60 dB at 10 kHz, VOUT= 3.3 V
• Reverse current protection
• Low dropout voltage: 350 mV at 500 mA
• Initial accuracy: ±0.8%
• Accuracy over line, load, and temperature−2% to +1%, TJ= −40°C to +125°C−1.25% to +1%, TJ= 0°C to +85°C
• −2% to +1%, TJ= −40°C to +125°C
• −1.25% to +1%, TJ= 0°C to +85°C
• Low quiescent current (VIN= 5 V), IGND= 900 μA with 500 mA load
• Low shutdown current: <40 μA at VIN= 12 V, stable with small 1 μF ceramic output capacitor
• 7 fixed output voltage options: 1.5 V, 1.8 V, 2.5 V, 3 V, 3.3 V, 5 V, and 9 V
• Adjustable output from 1.22 V to VIN− VDO
• Foldback current limit and thermal overload protection
• User programmable precision UVLO/enable
• Power-good indicator
• 8-lead LFCSP and 8-lead SOIC packages
Description
AI
The ADP7104 is a CMOS, low dropout linear regulator that operates from 3.3 V to 20 V and provides up to 500 mA of output current. This high input voltage LDO is ideal for regulation of high performance analog and mixed signal circuits operating from 19 V to 1.22 V rails. Using an advanced proprietary architecture, it provides high power supply rejection, low noise, and achieves excellent line and load transient response with just a small 1 μF ceramic output capacitor.The ADP7104 is available in seven fixed output voltage options and an adjustable version, which allows output voltages that range from 1.22 V to VIN− VDOvia an external feedback divider.The ADP7104 output noise voltage is 15 μV rms and is independent of the output voltage. A digital power-good output allows power system monitors to check the health of the output voltage. A user programmable precision undervoltage lockout function facilitates sequencing of multiple power supplies.The ADP7104 is available in 8-lead, 3 mm × 3 mm LFCSP and 8-lead SOIC packages. The LFCSP offers a very compact solution and also provides excellent thermal performance for applications requiring up to 500 mA of output current in a small, low-profile footprint.APPLICATIONSRegulation to noise sensitive applications: ADC, DAC circuits, precision amplifiers, high frequency oscillators, clocks, and PLLsCommunications and infrastructureMedical and healthcareIndustrial and instrumentation