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Contents

README

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JW5116FESOP#TRPBF

JoulWatt Tech · DC-DC Converters · ESOP-8

JW5116FESOP#TRPBF from JoulWatt Tech, in a ESOP-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 SW output SW is the switching node that supplies power to the output, and the output LC filter connects from SW to the load.
2 EN input Drive EN high to turn on the regulator and low to turn it off; the EN shutdown threshold is 1.0V to 1.6V (1.3V typical), and the VIN, EN and SW pins are rated -0.3V to 45V absolute maximum.
3 COMP passive Compensation pin: connect a series RC network from COMP to GND to compensate the control loop, with a ceramic capacitor of several tens of pF from COMP to GND for noise decoupling.
4 FB input Output feedback pin that is regulated to the 0.8V FB reference voltage, with a resistive divider connected at FB.
5 GND power_in Ground pin, which is also the exposed pad (EP) on the ESOP8 package.
6 RT passive The RT pin is regulated at 1.2V, and the switching frequency is set by a resistor from RT to ground (100 kHz to 700 kHz switching frequency range, 160 kHz typical at RRT = 260k).
7 VIN power_in Input voltage pin that supplies the IC from a 4.7V to 40V supply, to be bypassed to GND with a suitably large capacitor.
8 BST passive Bootstrap pin for the top switch; a 0.1uF or larger capacitor should be connected between BST and SW.
9 EP passive Exposed pad (from the footprint; not named in the datasheet pin table).

Key specifications

Parameter Value
Manufacturer JoulWatt Tech
Package ESOP-8
Category Power Management (PMIC)
Pins 9

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 under-voltage lockout threshold VIN_MIN 3.5 3.8 4.1 V VIN falling 4
Shutdown supply current ISD 1.6 5 μA VEN=0V 4
Supply current IQ 65 100 μA VEN=5V, VFB=1.2V 4
Feedback voltage VFB 0.78 0.8 0.82 V 4.7V<VVIN<40V 4
Top switch resistance RDS(ON)T 63 78 mΩ 4
Top switch current limit ILIM_TOP 3.6 4.5 A Minimum Duty Cycle 4
Switch frequency FSW 100 160 220 kHz RRT = 260k 4
Switch frequency range FSW 100 700 kHz 4
EN shutdown threshold VEN_TH 1 1.3 1.6 V VEN rising, FB=1V 4
Top switch leakage current ILEAK_TOP 1 uA VIN=40V, VEN=0V, VSW=0V 4
VIN under-voltage lockout hysteresis VIN_MIN_HYST 400 mV VIN rising 4
Error amp min source current 15 uA FB=0.4V 4
Error amp min sink current -15 uA FB=1.2V 4
Minimum on time TON_MIN 120 ns 4
Minimum off time TOFF_MIN 150 ns VFB=0V 4
EN shutdown hysteresis VEN_HYST 100 mV 4
Thermal shutdown TTSD 137 °C 4
Thermal shutdown recovery hysteresis TTSDR 15 °C 4
Input voltage VIN 4.7 40 V 3
Output voltage Vout 0.8 37 V 3
Operating junction temperature -40 125 ºC 3
VIN, EN, SW pin voltage -0.3 45 V 2
All other pins voltage -0.3 6 V 2
Junction temperature 150 ºC 2
Lead temperature 260 ºC 2
Storage temperature -65 150 ºC 2

CAD (KiCad official)

  • Symbol: JW5116FESOP#TRPBF
  • Footprint: Package_SO:SOIC-8-1EP_3.9x4.9mm_P1.27mm_EP2.41x3.3mm
  • 3D model: ESOP-8 (KiCad packages3D, STEP)
  • 3D model files: jw5116fesop-trpbf-etched.step / jw5116fesop-trpbf-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); jw5116fesop-trpbf.step / jw5116fesop-trpbf.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: JoulWatt Tech datasheet (17 pp, sha256 da54a7c9734380a3, retrieved 2026-10-09, 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