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ADP2108AUJZ-3.3-R7
Public Made by Adomby adom
Analog Devices DC-DC Converters, TSOT-23-5. 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
markdownADP2108AUJZ-3.3-R7
Analog Devices · DC-DC Converters · TSOT-23-5
ADP2108AUJZ-3.3-R7 from Analog Devices, in a TSOT-23-5. 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 | VIN | power_in | Power source input and source of the PFET high-side switch; bypass VIN to GND with a 2.2 µF or greater capacitor as close to the ADP2108 as possible. |
| 2 | GND | power_in | Ground; connect all the input and output capacitors to GND. |
| 3 | EN | input | Enable input; drive high to turn on the ADP2108 and drive low to turn it off, reducing the input current to 0.1 µA. |
| 4 | FB | input | Feedback input of the error amplifier; connect FB to the output of the switching regulator. |
| 5 | SW | output | Switch node output; SW is the drain of the PFET switch and the NFET synchronous rectifier. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Analog Devices |
| Package | TSOT-23-5 |
| Category | Power Management (PMIC) |
| Pins | 5 |
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 | 2.3 | 5.5 | V | 4 | ||
| Output Voltage Accuracy | -2 | 2 | % | PWM mode | 4 | ||
| Output Voltage Accuracy | -2.5 | 2.5 | % | VIN = 2.3 V to 5.5 V, PWM mode | 4 | ||
| Undervoltage Lockout Threshold (falling) | VIN | 2.05 | 2.15 | 2.25 | V | VIN falling | 4 |
| DC Operating Current | 18 | 30 | µA | ILOAD = 0 mA, device not switching | 4 | ||
| Shutdown Current | 0.2 | 1 | µA | EN = 0 V, TA = TJ = −40°C to +125°C | 4 | ||
| Current Limit | 1100 | 1300 | 1500 | mA | PFET switch peak current limit | 4 | |
| EN Input Leakage Current | -1 | 0 | 1 | µA | EN = 0 V, 3.6 V | 4 | |
| Oscillator Frequency | 2.5 | 3 | 3.5 | MHz | ILOAD = 200 mA | 4 | |
| VIN, EN voltage (absolute maximum) | VIN, EN | -0.4 | 6.5 | V | 5 | ||
| FB, SW to GND voltage (absolute maximum) | FB, SW | -1 | V | Upper limit printed as VIN + 0.2 V (not numeric) | 5 | ||
| Operating Ambient Temperature Range | TA | -40 | 125 | °C | 5 | ||
| Operating Junction Temperature Range | TJ | -40 | 125 | °C | 5 | ||
| Storage Temperature Range | -65 | 150 | °C | 5 | |||
| Lead Temperature Range | -65 | 150 | °C | 5 | |||
| Soldering | 300 | °C | 10 sec | 5 | |||
| Vapor Phase | 215 | °C | 60 sec | 5 | |||
| Infrared | 220 | °C | 15 sec | 5 | |||
| ESD Human Body Model | -1500 | 1500 | V | 5 | |||
| ESD Charged Device Model | -500 | 500 | V | 5 | |||
| ESD Machine Model | -100 | 100 | V | 5 | |||
| Inductor value | L | 0.7 | 3 | µH | For best performance | 14 | |
| Effective output capacitance | COUT | 7 | µF | Effective capacitance needed for stability, including temperature and DC bias effects | 15 | ||
| VIN bypass capacitor | CIN | 2.2 | µF | Bypass VIN to GND, placed as close to the IC as possible | 6 | ||
| UVLO Threshold (rising) | VIN | 2.3 | V | VIN rising | 4 | ||
| Power Save Mode to PWM Current Threshold | 85 | mA | 4 | ||||
| PWM to Power Save Mode Current Threshold | 80 | mA | 4 | ||||
| SW On Resistance (TSOT) PFET | RDS(ON) | 380 | mΩ | 4 | |||
| SW On Resistance (TSOT) NFET | RDS(ON) | 260 | mΩ | 4 | |||
| EN Input High Threshold | 1.2 | V | 4 | ||||
| EN Input Low Threshold | 0.4 | V | 4 | ||||
| Start-Up Time | 550 | µs | 4 | ||||
| Thermal Shutdown Threshold | 150 | °C | 4 | ||||
| Thermal Shutdown Hysteresis | 20 | °C | 4 | ||||
| Thermal Resistance, junction-to-ambient (5-Lead TSOT) | θJA | 170 | °C/W | Device mounted on JEDEC 2S2P PCB | 5 |
CAD (KiCad official)
- Symbol:
ADP2108AUJZ-3.3-R7 - Footprint:
Package_TO_SOT_SMD:TSOT-23-5 - 3D model: TSOT-23-5 (KiCad packages3D, STEP)
- 3D model files:
adp2108aujz-3-3-r7-etched.step/adp2108aujz-3-3-r7-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);adp2108aujz-3-3-r7.step/adp2108aujz-3-3-r7.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Analog Devices datasheet (21 pp, sha256
47d325d6e65d89bc, retrieved 2026-10-20, tier: lcsc) - 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).