component
RY9137C
Public Made by Adomby adom
RYCHIP DC-DC Converters, SOT-563-6. 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
markdownRY9137C
RYCHIP · DC-DC Converters · SOT-563-6
RY9137C from RYCHIP, in a SOT-563-6. 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 | IN | power_in | Power supply pin of the regulator, which must be supplied within the 4.5V to 17V input range stated for the device. |
| 2 | SW | output | Switching pin that drives the inductor from the internal high-side and low-side power MOSFETs. |
| 3 | GND | power_in | Ground pin. |
| 4 | BS | passive | Bootstrap pin; a capacitor connected between SW and BS is required to form a floating supply across the high-side switch driver. |
| 5 | EN | input | Drive to a logic-high to enable the IC and to a logic-low to disable the IC and enter micro-power shutdown mode. |
| 6 | FB | input | Adjustable-version feedback input; connect FB to the center point of the external resistor divider, with a feedback voltage of 0.805V typical. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | RYCHIP |
| Package | SOT-563-6 |
| Category | Power Management ICs |
| Pins | 6 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| VIN voltage | -0.3 | 19 | V | 3 | |||
| EN voltage | -0.3 | 19 | V | 3 | |||
| SW voltage | -0.3 | V | max printed as VIN+0.5V | 3 | |||
| BS voltage | -0.3 | V | max printed as Vsw+5V | 3 | |||
| FB voltage | -0.3 | 6 | V | 3 | |||
| Operating junction temperature | TJ | -40 | 150 | °C | 3 | ||
| Storage temperature | Tstg | -55 | 150 | °C | 3 | ||
| Lead temperature (soldering) | 260 | °C | Soldering, 10sec. | 3 | |||
| ESD Human Body Model | V(ESD-HBM) | -2000 | 2000 | V | ANSI/ESDA/JEDEC JS-001-2014, Class 2 | 3 | |
| ESD Charged Device Model | V(ESD-CDM) | -200 | 200 | V | ANSI/ESDA/JEDEC JS-002-2014, Class C0b | 3 | |
| Latch-up | ILATCH-UP | -150 | 150 | mA | JEDEC STANDARD NO.78E, Temperature Class I | 3 | |
| Operating junction temperature | TJ | -40 | 125 | °C | 3 | ||
| Operating temperature range | -40 | 85 | °C | 3 | |||
| Input voltage | VIN | 4.5 | 17 | V | 3 | ||
| Output current | 0 | 3 | A | 3 | |||
| Input Voltage Range | 4.5 | 17 | V | 4 | |||
| Supply Current (Quiescent) | 0.6 | 0.8 | mA | VEN =3.0V | 4 | ||
| Feedback Voltage | VFB | 0.784 | 0.805 | 0.825 | V | 4 | |
| Under-Voltage Lockout Threshold Wake up VIN Voltage | 4.3 | 4.5 | V | 4 | |||
| Under-Voltage Lockout Threshold Shutdown VIN Voltage | 3.6 | 3.8 | V | 4 | |||
| Supply Current (Shutdown) | 4 | uA | VEN =0 or EN = GND | 4 | |||
| High-Side Switch On-Resistance | 63 | mΩ | ISW=100mA | 4 | |||
| Low-Side Switch On-Resistance | 36 | mΩ | ISW=-100mA | 4 | |||
| Valley Switch Current Limit | 4 | A | 4 | ||||
| Over Voltage Protection Threshold | 19 | V | 4 | ||||
| Switching Frequency | 800 | KHz | 4 | ||||
| Maximum Duty Cycle | 94 | % | VFB=90% | 4 | |||
| Minimum Off-Time | 89 | nS | 4 | ||||
| EN Rising Threshold | 1.4 | V | 4 | ||||
| EN Falling Threshold | 1 | V | 4 | ||||
| Hysteresis VIN voltage | 500 | mV | 4 | ||||
| Soft Start | 1.5 | mS | 4 | ||||
| Thermal Shutdown | 160 | °C | 4 | ||||
| Thermal Hysteresis | 30 | °C | 4 | ||||
| Junction-to-ambient thermal resistance | RθJA | 155 | °C/W | JESD 51-7, 4-layer JEDEC board | 4 | ||
| Junction-to-case (top) thermal resistance | RθJC(top) | 55 | °C/W | 4 | |||
| Junction-to-board thermal resistance | RθJB | 30 | °C/W | 4 | |||
| Junction-to-top characterization parameter | ψJT | 2.5 | °C/W | 4 | |||
| Junction-to-board characterization parameter | ψJB | 31 | °C/W | 4 |
CAD (KiCad official)
- Symbol:
RY9137C - Footprint:
Package_TO_SOT_SMD:SOT-563 - 3D model: SOT-563-6 (KiCad packages3D, STEP)
- 3D model files:
ry9137c-etched.step/ry9137c-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ry9137c.step/ry9137c.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: RYCHIP datasheet (13 pp, sha256
0af6d2df90dc3883, retrieved 2026-10-28, 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).