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JW5116FESOP#TRPBF
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JoulWatt Tech DC-DC Converters, ESOP-8. 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
markdownJW5116FESOP#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.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);jw5116fesop-trpbf.step/jw5116fesop-trpbf.glbare 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, 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).