component
KP524208ALGA
Public Made by Adomby adom
Kiwi Instruments DC-DC Converters, TSOT-23-6. 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
markdownKP524208ALGA
Kiwi Instruments · DC-DC Converters · TSOT-23-6
KP524208ALGA from Kiwi Instruments, in a TSOT-23-6. 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 | GND | power_in | Power and signal ground for the converter. |
| 2 | SW | power_out | Switch node; connect with a short, wide trace to the output inductor. |
| 3 | VIN | power_in | Input supply pin, rated 4.5 V to 17 V; place a 100 nF ceramic decoupling capacitor as close as possible to the VIN and GND pins. |
| 4 | FB | input | Feedback pin; the output voltage divider connects here, with VREF = 0.768 V for output voltage setting and control. |
| 5 | EN | input | Enable pin; pull high or leave floating to enable the chip, and when tied to VIN a series pull-up resistor of at least 100 kΩ is required, which can also set the VIN UVLO threshold. |
| 6 | BST | power_out | Charge-pump supply for the high-side MOSFET gate drive; connect a 100 nF ceramic capacitor between BST and SW to stabilize it. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Kiwi Instruments |
| Package | TSOT-23-6 |
| Category | Power Management (PMIC) |
| 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 operating input voltage | 4.5 | 17 | V | 4 | |||
| VIN quiescent current (FPWM, KP524208A) | IQ(VIN) | 195 | µA | No switching, VEN = 5 V, VFB = VREF*105%, IOUT = 0 A | 4 | ||
| VIN shutdown current | ISHDN(VIN) | 2.5 | 6 | µA | VIN = 12 V, VEN = 0 V | 4 | |
| VIN UVLO rising threshold | VUVLO(R) | 4 | 4.2 | 4.4 | V | VIN rising | 4 |
| VIN UVLO falling threshold | VUVLO(F) | 3.6 | 3.8 | 4 | V | VIN falling | 4 |
| EN rising threshold | VEN(R) | 1.2 | 1.28 | V | EN rising, enables switching | 4 | |
| EN falling threshold | VEN(F) | 1.02 | 1.14 | V | EN falling, disables switching | 4 | |
| EN pin sink current | IEN(P) | 0.95 | 1.14 | 1.5 | µA | VEN = 1.0 V | 4 |
| EN hysteresis sink current | IEN(H) | 2.3 | 2.73 | 3.81 | µA | 4 | |
| FB pin voltage | VFB | 0.76 | 0.768 | 0.776 | V | TJ = 25 ℃ | 5 |
| FB pin voltage over temperature | VFB | 0.757 | 0.768 | 0.779 | V | TJ = -40 ℃ to 125 ℃, VIN = 12 V | 5 |
| FB pin input leakage current | IFB(LKG) | -100 | 0 | 100 | nA | TJ = 25 ℃ | 5 |
| Internal soft-start time | TSS | 0.5 | 1 | 1.5 | ms | From 10% VOUT to 90% VOUT | 5 |
| NOC reverse current limit (KP524208A) | ILS(NOC) | 1.4 | 2.2 | 2.9 | A | VIN = 12 V | 5 |
| UVP threshold voltage | VUVP | 65 | % | VFB falling | 5 | ||
| UVP hysteresis voltage | 7 | % | 5 | ||||
| UVP wait time before hiccup | THCP(WAIT) | 110 | µs | 5 | |||
| UVP hiccup off time | THCP(OFF) | 12 | ms | Hiccup mode to re-soft-start | 5 | ||
| OVP threshold voltage | VOVP | 115 | % | VFB rising | 5 | ||
| OVP hysteresis voltage | 6.5 | % | 5 | ||||
| Overtemperature protection threshold | TJ(SD) | 160 | ℃ | 5 | |||
| Overtemperature protection recovery hysteresis | TJ(HYS) | 35 | ℃ | 5 | |||
| EN delay time to first switching pulse | TDLY | 440 | µs | 5 | |||
| Switching frequency (continuous inductor current) | FSW | 580 | kHz | VIN = 12 V, VOUT = 5 V, current continuous | 5 | ||
| High-side MOSFET on-resistance | RDSON(HS) | 75 | mΩ | TJ = 25 ℃, VIN = 12 V, VBOOT-SW = 5 V | 5 | ||
| Low-side MOSFET on-resistance | RDSON(LS) | 45 | mΩ | TJ = 25 ℃, VIN = 12 V | 5 | ||
| Minimum on-time | tON(min) | 50 | ns | 5 | |||
| Minimum off-time | tOFF(min) | 180 | ns | 5 | |||
| Dead time | tDEAD | 10 | ns | 5 | |||
| Zero-crossing detection threshold | IZC | 70 | mA | 5 | |||
| Input voltage range (recommended) | VIN | 4.5 | 17 | V | 3 | ||
| Output voltage range (recommended) | VOUT | 0.768 | 7 | V | 3 | ||
| Output current range (recommended) | IOUT | 0 | 3 | A | 3 | ||
| SW pin voltage, DC (recommended) | SW, DC | -0.1 | 17 | V | 3 | ||
| SW pin voltage, transient (recommended) | SW, transient < 10 ns | -3 | 19 | V | Transient < 10 ns | 3 | |
| VIN-SW voltage, DC (recommended) | VIN, SW, DC | -0.1 | 17 | V | 3 | ||
| VIN-SW voltage, transient (recommended) | VIN, SW, transient < 10 ns | -3 | 19 | V | Transient < 10 ns | 4 | |
| BOOT pin voltage (recommended) | BOOT | -0.1 | 22.5 | V | 4 | ||
| BOOT-SW voltage (recommended) | BOOT, SW | -0.1 | 5.5 | V | 4 | ||
| EN, FB pin voltage (recommended) | EN(1), FB | -0.1 | 5.5 | V | 4 | ||
| Junction temperature operating range (recommended) | TJ | -40 | 125 | ℃ | 4 | ||
| VIN pin voltage (absolute maximum) | VIN | -0.3 | 19 | V | 3 | ||
| SW pin voltage, DC (absolute maximum) | SW, DC | -0.3 | 19 | V | 3 | ||
| SW pin voltage, transient (absolute maximum) | SW, Transient < 10 ns | -3 | 21 | V | Transient < 10 ns | 3 | |
| VIN-SW voltage, DC (absolute maximum) | VIN, SW, DC | -0.3 | 19 | V | 3 | ||
| VIN-SW voltage, transient (absolute maximum) | VIN, SW, Transient < 10 ns | -3 | 21 | V | Transient < 10 ns | 3 | |
| BOOT pin voltage (absolute maximum) | BOOT | -0.3 | 25 | V | 3 | ||
| BOOT-SW voltage (absolute maximum) | BOOT, SW | -0.3 | 6 | V | 3 | ||
| EN, FB pin voltage (absolute maximum) | EN, FB | -0.3 | 6 | V | 3 | ||
| Operating junction temperature (absolute maximum) | TJ | -40 | 150 | ℃ | 3 | ||
| Storage temperature range | TSTG | -65 | 150 | ℃ | 3 | ||
| Junction-to-ambient thermal resistance (EVM board) | RθJA(EVM) | 54 | ℃/W | Based on EVM board 60 mm x 45 mm, 2-layer; VIN = 12 V, VOUT = 5 V, IOUT = 4 A, TA = 25 ℃ | 4 |
CAD (KiCad official)
- Symbol:
KP524208ALGA - Footprint:
Package_TO_SOT_SMD:TSOT-23-6 - 3D model: TSOT-23-6 (KiCad packages3D, STEP)
- 3D model files:
kp524208alga-etched.step/kp524208alga-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);kp524208alga.step/kp524208alga.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Kiwi Instruments datasheet (24 pp, sha256
0b3aa5b2faeccc27, retrieved 2026-10-18, tier: lcsc) - Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
- 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).