component
RY3834
Public Unreviewedby Ray
RYCHIP DC-DC Converters, ESOP-8. Datasheet-verified pinout, 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
markdownRY3834
RYCHIP · DC-DC Converters · ESOP-8
RY3834 from RYCHIP, in a ESOP-8. 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 | BS | passive | Bootstrap. A capacitor connected between SW and BS is required to form a floating supply across the high-side MOSFET gate driver. VBS rating: (VSW-0.3V) to (VSW+5V). |
| 2 | IN | power_in | Power supply input. Operating input voltage range 4V to 18V (absolute max 21V). Bypass with a ceramic capacitor close to this pin. |
| 3 | SW | power_out | Switching node. Connect to the external inductor. Internally driven by the high-side and low-side power MOSFETs; VSW range -0.3V to (VIN+0.5V). |
| 4 | GND | power_in | Ground pin. Return for the internal control and low-side switch. Connect to a large copper area together with the exposed pad for thermal performance. |
| 5 | FB | input | Adjustable version feedback input. Connect to the center point of the external resistor divider from VOUT. Regulated to VFB = 0.925V (typ), 0.904V min / 0.94V max. Absolute max -0.3V to 6V. |
| 6 | NC | unconnected | No internal connection. Leave floating or tie to a copper pour as convenient for layout. |
| 7 | EN | input | Enable input. Drive logic-high (rising threshold 1.05V-1.25V, typ 1.15V, 140mV hysteresis) to enable the IC. Drive low to disable and enter micro-power shutdown (~4µA). Absolute max -0.3V to 21V. |
| 8 | NC | unconnected | No internal connection. Leave floating or tie to a copper pour as convenient for layout. |
| 9 | EPAD | power_in | Exposed thermal pad on the bottom of the ESOP8 package. Ground pin; must be soldered to the PCB ground plane for proper electrical operation and heat dissipation. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | RYCHIP |
| Package | ESOP-8 |
| Category | PMIC |
| Pins | 9 |
Ordering variants
Same part, different packaging or reel option.
RY3834
CAD (KiCad official)
- Symbol:
RY3834 - Footprint:
Package_SO:SOIC-8-1EP_3.9x4.9mm_P1.27mm_EP2.29x3mm - 3D model: ESOP-8 (KiCad packages3D, STEP)
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: RYCHIP datasheet (7 pp, sha256
56f3bbbe0dcebeee, 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).