component
ZJR1004-2BUABT
Public Made by Adomby adom
ZJW Voltage Reference, MSOP-8. 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
markdownZJR1004-2BUABT
ZJW · Voltage Reference · MSOP-8
ZJR1004-2BUABT from ZJW, in a MSOP-8. 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 | NIC | unconnected | No internal connection. |
| 2 | VIN | power_in | Input voltage supply pin, 2.8 V (ZJR1004-2) or VOUT+0.3 V (other versions) up to 40 V. |
| 3 | EN | input | Active-low enable input that powers the device down to 9 µA; if left open an internal pull-up resistor enables normal operation, and tying it high externally is recommended. |
| 4 | GND | power_in | Ground pin = 0 V. |
| 5 | NIC | unconnected | No internal connection. |
| 6 | VOUT | power_out | Output voltage; requires a 0.1 µF to 10 µF load capacitor to GND and can drive up to 20 mA. |
| 7 | NIC | unconnected | No internal connection. |
| 8 | NIC | unconnected | No internal connection. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | ZJW |
| Package | MSOP-8 |
| Category | Power Management (PMIC) |
| Pins | 8 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Initial Accuracy | -0.05 | 0.05 | % | 6 | |||
| Temperature Coefficient, B Grade | 2.8 | 5 | ppm/°C | B Grade, over full operating temperature range | 6 | ||
| Line Regulation | 0.1 | 3 | ppm/V | ZJR1004-2: VIN = 2.8 V ~ 40 V | 6 | ||
| Load Regulation | 0.8 | 20 | ppm/mA | -10 mA < ILOAD < 10 mA | 6 | ||
| Supply Voltage | VIN | 2.8 | 40 | V | ILOAD = 5 mA, Output Voltage Error ≤ 0.1%, ZJR1004-2 | 6 | |
| Supply Current, No Load | ISY | 160 | 200 | µA | No Load | 7 | |
| Supply Current, Shutdown | ISY | 10 | 20 | µA | SHUTDOWN (EN = GND) | 7 | |
| EN Logic High Input Voltage | 2 | V | 7 | ||||
| EN Logic High Input Current | -1 | 1 | µA | 7 | |||
| EN Logic Low Input Voltage | 0.8 | V | 7 | ||||
| EN Logic Low Input Current | -1 | 1 | µA | 7 | |||
| Output Short Circuit Current | ISC | 14 | 20 | mA | VOUT = GND or VIN | 7 | |
| Specified Temperature Range | -40 | 125 | °C | 7 | |||
| Operating Temperature Range | -55 | 125 | °C | 7 | |||
| Supply Voltage | 40 | V | 5 | ||||
| Input Voltage | -0.2 | 40 | V | 5 | |||
| Output Short-Circuit Current to GND | -30 | 30 | mA | 5 | |||
| Operating Temperature Range | -40 | 125 | °C | 5 | |||
| Storage Temperature Range | -65 | 150 | °C | 5 | |||
| Junction Temperature Range | -65 | 150 | °C | 5 | |||
| Maximum Reflow Temperature | 260 | °C | IPC/JEDEC J-STD-020 compliant | 5 | |||
| Lead Temperature | 300 | °C | Soldering, 10 sec | 5 | |||
| ESD Human Body Model | HBM | 4.5 | kV | 5 | |||
| ESD Charge Device Model | CDM | 2 | kV | 5 | |||
| Output Voltage | VOUT | 2.048 | V | ZJR1004-2 | 6 | ||
| Voltage Noise | 2.1 | ppm_P-P | 0.1 Hz to 10 Hz | 6 | |||
| Voltage Noise Density | en | 167 | nV/√Hz | ZJR1004-2, 1 kHz | 6 | ||
| Turn-on Time | 200 | µs | 0.1% settling, CL = 0.1 µF | 7 | |||
| Long-Term Stability | LTD | 10 | ppm/1000 hours | 1000 hours, MSOP-8 | 7 | ||
| Output Voltage Hysteresis | 50 | ppm | MSOP-8 | 7 | |||
| Thermal Resistance Junction-to-Ambient, 8-lead MSOP | θJA | 190 | °C/W | 8-lead MSOP | 5 | ||
| Thermal Resistance Junction-to-Case, 8-lead MSOP | θJC | 44 | °C/W | 8-lead MSOP | 5 |
CAD (KiCad official)
- Symbol:
ZJR1004-2BUABT - Footprint:
Package_SO:MSOP-8_3x3mm_P0.65mm - 3D model: MSOP-8 (KiCad packages3D, STEP)
- 3D model files:
zjr1004-2buabt-etched.step/zjr1004-2buabt-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);zjr1004-2buabt.step/zjr1004-2buabt.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: ZJW datasheet (22 pp, sha256
e357b349c5d83d4b, retrieved 2026-10-23, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-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).