component
NDP1435KC
Public Made by Adomby adom
NDP DC-DC Converters, SOP-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
markdownNDP1435KC
NDP · DC-DC Converters · SOP-8
NDP1435KC from NDP, in a SOP-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 | VFB | input | Output voltage feedback input to the error amplifier, compared against the internal 1.0 V reference (0.985 to 1.015 V) with 0.2 µA bias current, and rated -0.3 to 6 V to GND. |
| 2 | CSP | input | Positive input of the current-sense amplifier, sensing the CSP-CSN voltage of 57 to 63 mV, and rated -0.3 to 25 V to GND. |
| 3 | CSN | input | Negative input of the current-sense amplifier paired with CSP, and rated -0.3 to 25 V to GND. |
| 4 | VIN | power_in | Power input with a recommended range of 8 V to 36 V (absolute maximum -0.3 to 44 V to GND), and the regulator suspends operation above the 38 V overvoltage threshold. |
| 5 | SW | output | Switching node connected to the inductor, rated -0.3 V to VIN+0.3 V to GND. |
| 6 | SW | output | Switching node connected to the inductor (second SW pin, same function as pin 5), rated -0.3 V to VIN+0.3 V to GND. |
| 7 | FS | input | Frequency-set pin where a floating pin gives 130 kHz, an external resistor (470 kΩ gives 300 kHz) sets the frequency up to 300 kHz, and pulling it below 0.3 V enters low-current shutdown; rated -0.3 to 6 V to GND. |
| 8 | GND | power_in | Ground reference for the device, to which all pin voltage ratings are referenced. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | NDP |
| Package | SOP-8 |
| Category | Power Management (PMIC) |
| Pins | 8 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Input Voltage | VIN | 7 | 38 | V | 4 | ||
| UVLO Voltage | VUVLO_OFF | 5.2 | 5.5 | 5.8 | V | VIN Rising | 4 |
| UVLO ON Voltage | VUVLO_ON | 4 | 4.3 | 4.6 | V | VIN Falling | 4 |
| Standby Current | ISB | 1.7 | 2.2 | mA | No Load | 4 | |
| FB Reference Voltage | VFB | 0.985 | 1 | 1.015 | V | 4 | |
| Current Sense AMP | VCS | 57 | 60 | 63 | mV | CSP-CSN | 4 |
| Switching Frequency | FSW | 100 | 130 | 160 | kHz | FS Floating | 4 |
| Input Over Voltage Protect | VOVP | 38 | V | 4 | |||
| Maximum Duty Cycle | 100 | % | 4 | ||||
| Input Voltage (recommended) | VIN | 8 | 36 | V | 3 | ||
| Output Voltage (recommended) | VOUT | 3.3 | 20 | V | 3 | ||
| Output Current (recommended) | IOUT | 3.5 | A | 3 | |||
| VIN to GND | -0.3 | 44 | V | 3 | |||
| SW to GND | -0.3 | V | 3 | ||||
| FB, FS to GND | -0.3 | 6 | V | 3 | |||
| CSP, CSN to GND | -0.3 | 25 | V | 3 | |||
| Operating Junction Temperature | TA | -40 | 150 | °C | 3 | ||
| Storage Junction Temperature | Tstg | -65 | 150 | °C | 3 | ||
| Thermal Resistance from Junction to case | θJC | 45 | °C/W | 3 | |||
| Thermal Resistance from Junction to ambient | θJA | 90 | °C/W | 3 |
CAD (KiCad official)
- Symbol:
NDP1435KC - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOP-8 (KiCad packages3D, STEP)
- 3D model files:
ndp1435kc-etched.step/ndp1435kc-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ndp1435kc.step/ndp1435kc.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: NDP datasheet (10 pp, sha256
ab0fdffed1ef3a37, retrieved 2026-10-17, 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).