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ADP7104ARDZ-R7
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Analog Devices Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOIC-8-EP. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownADP7104ARDZ-R7
Analog Devices · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOIC-8-EP
ADP7104ARDZ-R7 from Analog Devices, in a SOIC-8-EP. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | VOUT | power_out | Regulated output voltage; a 1 µF or larger bypass capacitor should be connected from VOUT to GND. |
| 2 | SENSE/ADJ | input | On fixed-voltage versions this pin is SENSE, which measures the load voltage and should be placed as close to the load as possible; on adjustable versions it is ADJ, the external divider input that sets VOUT = 1.22 V × (1 + R1/R2). |
| 3 | GND | power_in | Ground. |
| 4 | NC | unconnected | No connect; do not connect to this pin. |
| 5 | EN/UVLO | input | Enable input: driving it high starts the regulator and driving it low shuts it down, and tying it to VIN gives automatic start-up, with programmable UVLO thresholds set by external resistors. |
| 6 | GND | power_in | Ground. |
| 7 | PG | output | Open-drain power-good output that requires an external pull-up to VIN or VOUT and goes low when VOUT falls below 90% of nominal or when the part is in shutdown, current limit, or thermal shutdown; it may be left floating or tied to ground if unused. |
| 8 | VIN | power_in | Regulator input supply, specified for 3.3 V to 20 V, with a 1 µF or larger bypass capacitor from VIN to GND. |
| 9 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Analog Devices |
| Package | SOIC-8-EP |
| Category | Power Management (PMIC) |
| Pins | 9 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Input voltage range | VIN | 3.3 | 20 | V | 3 | ||
| Working supply current (IOUT = 100 µA, TJ range) | IGND | 900 | µA | IOUT = 100 µA, VIN = 10 V, TJ = −40°C至+125°C | 3 | ||
| Working supply current (IOUT = 10 mA, TJ range) | IGND | 1050 | µA | IOUT = 10 mA, VIN = 10 V, TJ = −40°C至+125°C | 3 | ||
| Working supply current (IOUT = 300 mA, TJ range) | IGND | 1400 | µA | IOUT = 300 mA, VIN = 10 V, TJ = −40°C至+125°C | 3 | ||
| Working supply current (IOUT = 500 mA, TJ range) | IGND | 1600 | µA | IOUT = 500 mA, VIN = 10 V, TJ = −40°C至+125°C | 3 | ||
| Shutdown current | IGND-SD | 40 | 50 | µA | EN = GND, VIN = 12 V | 3 | |
| Shutdown current (TJ range) | IGND-SD | 75 | µA | EN = GND, VIN = 12 V, TJ = −40°C至+125°C | 3 | ||
| Input reverse current (TJ range) | IREV-INPUT | 5 | µA | EN = GND, VIN = 0 V, VOUT = 20 V, TJ = −40°C至+125°C | 3 | ||
| Adjustable output voltage accuracy | VADJ | 1.21 | 1.22 | 1.23 | V | IOUT = 10 mA | 3 |
| Adjustable output voltage accuracy (load and line range, TJ range) | VADJ | 1.196 | 1.232 | V | 1 mA < IOUT < 500 mA, VIN = (VOUT + 1 V) to 20 V, TJ = −40°C至+125°C | 3 | |
| Line regulation | ΔVOUT/ΔVIN | -0.015 | 0.015 | %/V | VIN = (VOUT + 1 V) to 20 V, TJ = −40°C至+125°C | 3 | |
| Load regulation (TJ range) | ΔVOUT/ΔIOUT | 0.75 | %/A | IOUT = 1 mA至500 mA, TJ = −40°C至+125°C | 3 | ||
| Dropout voltage (TJ range) | VDROPOUT | 40 | mV | IOUT = 10 mA, TJ = −40°C至+125°C | 3 | ||
| Dropout voltage (TJ range) | VDROPOUT | 175 | mV | IOUT = 150 mA, TJ = −40°C至+125°C | 3 | ||
| Dropout voltage (TJ range) | VDROPOUT | 325 | mV | IOUT = 300 mA, TJ = −40°C至+125°C | 3 | ||
| Dropout voltage (TJ range) | VDROPOUT | 550 | mV | IOUT = 500 mA, TJ = −40°C至+125°C | 3 | ||
| Current limit threshold | ILIMIT | 625 | 775 | 1000 | mA | 3 | |
| UVLO threshold rising | UVLORISE | 1.18 | 1.22 | 1.28 | V | 3.3 V ≤ VIN ≤ 20 V, TJ = −40°C to +125°C | 4 |
| UVLO hysteresis current | UVLOHYS | 7.5 | 9.8 | 12 | µA | VEN > 1.25 V, TJ = −40°C至+125°C | 4 |
| Minimum input and output capacitance | CMIN | 0.7 | µF | TA = −40°C至+125°C | 4 | ||
| Capacitor ESR | RESR | 0.001 | 0.2 | Ω | TA = −40°C至+125°C | 4 | |
| VIN to GND | VIN | -0.3 | 22 | V | 5 | ||
| VOUT to GND | VOUT | -0.3 | 20 | V | 5 | ||
| EN/UVLO to GND | EN/UVLO | -0.3 | V | 5 | |||
| PG to GND | PG | -0.3 | V | 5 | |||
| SENSE/ADJ to GND | SENSE/ADJ | -0.3 | V | 5 | |||
| Storage temperature range | -65 | 150 | °C | 5 | |||
| Operating junction temperature range | TJ | -40 | 125 | °C | 5 | ||
| Junction-to-ambient thermal resistance, 8-lead SOIC | θJA | 48.5 | °C/W | 5 | |||
| Junction-to-case thermal resistance, 8-lead SOIC | θJC | 58.4 | °C/W | 5 | |||
| Junction-to-board thermal characteristic, 8-lead SOIC | ΨJB | 31.3 | °C/W | 5 | |||
| Typical junction-to-ambient thermal resistance vs copper area, SOIC | θJA | 167.8 | °C/W | copper area 251 mm2 | 20 | ||
| Typical junction-to-ambient thermal resistance vs copper area, SOIC | θJA | 111 | °C/W | copper area 100 mm2 | 20 | ||
| Typical junction-to-ambient thermal resistance vs copper area, SOIC | θJA | 65.9 | °C/W | copper area 500 mm2 | 20 | ||
| Typical junction-to-ambient thermal resistance vs copper area, SOIC | θJA | 56.1 | °C/W | copper area 1000 mm2 | 20 | ||
| Typical junction-to-ambient thermal resistance vs copper area, SOIC | θJA | 45.8 | °C/W | copper area 6400 mm2 | 20 |
CAD (KiCad official)
- Symbol:
ADP7104ARDZ-R7 - Footprint:
Package_SO:SOIC-8-1EP_3.9x4.9mm_P1.27mm_EP2.29x3mm - 3D model: SOIC-8-EP (KiCad packages3D, STEP)
- 3D model files:
adp7104ardz-r7-etched.step/adp7104ardz-r7-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);adp7104ardz-r7.step/adp7104ardz-r7.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Analog Devices datasheet (28 pp, sha256
269a0ae0cec349ea, retrieved 2026-10-18, tier: lcsc) - Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
- Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-5-5(text), consensusclaude-sonnet-5-5(agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish. - CAD: KiCad official libraries (CC-BY-SA 4.0).