component
RY3430
Public Made by Adomby adom
RYCHIP DC-DC Converters, SOT-23-5. Pinout extracted from 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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Contents
README
markdownRY3430
RYCHIP · DC-DC Converters · SOT-23-5
RY3430 from RYCHIP, in a SOT-23-5. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | EN | input | Chip enable input. Drive above 1.5V (typ threshold 1.15V, hysteresis 140mV) to turn the regulator on; drive below 0.3V to disable it. Leakage is ±0.01µA typical. Do not leave floating. |
| 2 | GND | power_in | Device ground. Connect to a large copper plane to improve thermal performance and long-term reliability. |
| 3 | SW | output | Power switch node output; connects to the drains of the internal P-channel and N-channel MOSFET switches. Connect an external inductor from SW to VOUT. Peak switch current rating 4A. |
| 4 | VIN | power_in | Power supply input, 2.5V to 5.5V operating range (absolute max 6.0V). Must be closely decoupled to GND with a 10µF or greater ceramic capacitor placed close to the pin. |
| 5 | FB | input | Output voltage feedback input. An external resistor divider from VOUT to FB to GND sets the output voltage using the 0.600V internal reference (VOUT = VFB × (R1+R2)/R2). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | RYCHIP |
| Package | SOT-23-5 |
| Category | PMIC |
| Pins | 5 |
Ordering variants
Same part, different packaging or reel option.
RY343070301007
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 | 2.5 | 5.5 | V | 3 | |||
| Regulated Feedback Voltage | 0.588 | 0.6 | 0.612 | V | 3 | ||
| EN up Threshold | VEN-Rising | 1.05 | 1.15 | 1.25 | V | 3 | |
| Input DC Supply Current | 150 | 300 | µA | FB = 90%, Iload=0mA | 3 | ||
| Input DC Supply Current | 40 | 70 | µA | FB= 105%, Iload=0mA | 3 | ||
| Input DC Supply Current | 0.1 | 1 | µA | VEN = 0V, VIN=4.2V | 3 | ||
| Reference Voltage Line Regulation | 0.04 | 0.4 | %/V | Vin = 2.5V to 6.0V | 3 | ||
| Output Voltage Line Regulation | 0.04 | 0.4 | % | VIN = 2.5V to 6.0V | 3 | ||
| EN Leakage Current | -1 | 0.01 | 1 | µA | 3 | ||
| SW Leakage Current | -1 | 0.01 | 1 | µA | VEN=0V, VIN=Vsw=5V | 3 | |
| Input Supply Voltage | -0.3 | 6 | V | 3 | |||
| EN, FB Voltages | -0.3 | 6 | V | 3 | |||
| SW Voltage | -0.3 | V | 3 | ||||
| Peak SW Sink and Source Current | 4 | A | 3 | ||||
| ESD (Human Body Model) HMB | 2 | KV | 3 | ||||
| Operating Temperature Range | -40 | 85 | °C | 3 | |||
| Junction Temperature | 125 | °C | 3 | ||||
| Storage Temperature Range | -65 | 150 | °C | 3 | |||
| Lead Temperature (Soldering) | 300 | °C | Soldering, 10s | 3 | |||
| ESD (Machine Model) MM | 200 | V | 3 | ||||
| Oscillation Frequency | 1.2 | MHz | RY3430/RY3430C | 3 | |||
| On Resistance of PMOS | 0.08 | Ω | ISW=100mA | 3 | |||
| ON Resistance of NMOS | 0.06 | Ω | ISW=-100mA | 3 | |||
| Peak Current Limit | 4 | A | VIN= 3.6V, FB=90% | 3 | |||
| Output Voltage Load Regulation | 0.5 | % | 3 | ||||
| UVLO Threshold | 2.4 | V | 3 | ||||
| OVP Threshold | 6 | V | 3 | ||||
| EN Threshold Hysteresis | 140 | mV | 3 | ||||
| Soft Start | 1.2 | mS | 3 | ||||
| Thermal Shutdown | 160 | ℃ | 3 | ||||
| Thermal Hysteresis | 20 | ℃ | 3 | ||||
| Thermal Resistance (θJA) | θJA | 140 | °C/W | 3 | |||
| Thermal Resistance (θJC) | θJC | 110 | °C/W | 3 |
CAD (KiCad official)
- Symbol:
RY3430 - Footprint:
Package_TO_SOT_SMD:SOT-23-5 - 3D model: SOT-23-5 (KiCad packages3D, STEP)
- 3D model files:
ry3430-etched.step/ry3430-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ry3430.step/ry3430.glbare the bare package body.
3D model downloads
Two STEP files. Same geometry, different body top:
| File | Size | Use it when |
|---|---|---|
ry3430.step |
85 KB | You want the bare part, or you mark your own boards. |
ry3430-etched.step |
1.5 MB | You want the part with RY3430 already on it. |
The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 366 faces against 102 in the bare model. It survives export, section views, and rendering in any CAD tool, and it drops straight into KiCad or Fusion with no extra setup.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: RYCHIP datasheet (10 pp, sha256
f499af7e71472cb5, retrieved 2026-08-17, tier: lcsc) - Extractor:
ds2sf(Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate. - CAD: KiCad official libraries (CC-BY-SA 4.0).