component

RY9137C

Public Made by Adom

by adom

RYCHIP DC-DC Converters, SOT-563-6. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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RY9137C

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.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ry9137c.step / ry9137c.glb are 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, primary claude-haiku-5-5 (text), consensus claude-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).

Datasheet PDF