component
KP522208ALGA
Public Made by Adomby adom
Kiwi Instruments DC-DC Converters, SOT-23-6. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
Generated by kicad-footprint-generator · KiCad file format 20260206
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KP522208ALGA
Kiwi Instruments · DC-DC Converters · SOT-23-6
KP522208ALGA from Kiwi Instruments, in a SOT-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; the common reference for the device, with VIN decoupling to be placed as close as possible to the VIN and GND pins. |
| 2 | SW | power_out | Switch node, to be connected to the output inductor with short and wide traces; recommended DC range is -0.1 V to 17 V. |
| 3 | VIN | power_in | Input supply pin, 4.5 V to 17 V recommended operating range, with a 100 nF ceramic decoupling capacitor placed as close as possible to VIN and GND. |
| 4 | FB | input | Feedback pin receiving the resistor-divided output voltage for output voltage setting and control, with VREF = 0.768 V and a lower divider resistor of 10 kΩ to 50 kΩ recommended. |
| 5 | EN | input | Enable pin: pulling high or leaving it floating enables the device, and EN absolute maximum is -0.3 V to 6 V, so a series pull-up of at least 100 kΩ is required when it is tied to VIN; it can also be used to set the VIN UVLO thresholds. |
| 6 | BST | power_out | Charge-pump voltage for high-side MOSFET gate drive, requiring a 100 nF ceramic capacitor between BST and SW (rated at least 10 V, X5R or X7R recommended). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Kiwi Instruments |
| Package | SOT-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 pin voltage range (DC) | VIN | -0.3 | 19 | V | 3 | ||
| SW pin voltage (DC) | SW | -0.3 | 19 | V | DC | 3 | |
| SW pin voltage (transient) | SW | -3 | 21 | V | transient < 10 ns | 3 | |
| VIN-SW voltage (DC) | VIN-SW | -0.3 | 19 | V | DC | 3 | |
| VIN-SW voltage (transient) | VIN-SW | -3 | 21 | V | transient < 10 ns | 3 | |
| BOOT pin voltage | BOOT | -0.3 | 25 | V | 3 | ||
| BOOT-SW voltage | BOOT-SW | -0.3 | 6 | V | 3 | ||
| EN, FB pin voltage | EN, FB | -0.3 | 6 | V | 3 | ||
| Operating junction temperature range | TJ | -40 | 150 | ℃ | note 2: operable above 125℃ but lifetime may be reduced | 3 | |
| Storage temperature range | TSTG | -65 | 150 | ℃ | 3 | ||
| VIN operating input voltage | VIN | 4.5 | 17 | V | 3 | ||
| VOUT output voltage range | VOUT | 0.768 | 7 | V | 3 | ||
| IOUT output current range | IOUT | 0 | 2 | A | 3 | ||
| SW pin voltage (DC) recommended | SW | -0.1 | 17 | V | DC | 3 | |
| SW pin voltage (transient) recommended | SW | -3 | 19 | V | transient < 10 ns | 3 | |
| VIN-SW voltage (DC) recommended | VIN-SW | -0.1 | 17 | V | DC | 3 | |
| VIN-SW voltage (transient) recommended | VIN-SW | -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, FB | -0.1 | 5.5 | V | 4 | ||
| Operating junction temperature range recommended | TJ | -40 | 125 | ℃ | 4 | ||
| VIN operating input voltage | VIN | 4.5 | 17 | V | TJ = -40℃ to 125℃ | 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) | 1.15 | 1.21 | 1.27 | V | EN rising, enables switching | 4 |
| EN falling threshold | VEN(F) | 1.08 | 1.14 | 1.2 | V | EN falling, disables switching | 4 |
| EN pull-up current | IEN(P) | 0.84 | 1.11 | 1.38 | µA | VEN = 1.0 V | 4 |
| EN hysteresis current | IEN(H) | 2.27 | 2.72 | 3.23 | µA | 4 | |
| FB pin voltage | VFB | 0.756 | 0.768 | 0.78 | V | TJ = 25℃ | 5 |
| FB pin voltage over temperature | VFB | 0.753 | 0.768 | 0.783 | V | TJ = -40℃ to 125℃, VIN = 12 V | 5 |
| FB pin input leakage current | IFB(LKG) | -100 | 0 | 100 | nA | TJ = 25℃ | 5 |
| VIN shutdown current | ISHDN(VIN) | 2.5 | 4.5 | µA | VIN = 12 V, VEN = 0 V | 4 | |
| Negative (reverse) current limit, KP522208A | ILS(NOC) | 0.85 | 1.15 | 1.45 | A | VIN = 12 V | 5 |
| UVP threshold voltage | VUVP | 65 | % | VFB falling, % of VREF | 5 | ||
| UVP hysteresis voltage | UVP hysteresis | 6.5 | % | 5 | |||
| UVP wait time before hiccup | THCP(WAIT) | 110 | µs | 5 | |||
| Hiccup off time before soft-start retry | THCP(OFF) | 12 | ms | 5 | |||
| OVP threshold voltage | VOVP | 115 | % | VFB rising, % of VREF | 5 | ||
| OVP hysteresis voltage | OVP hysteresis | 6.5 | % | 5 | |||
| Thermal shutdown threshold | TJ(SD) | 155 | ℃ | 5 | |||
| Thermal shutdown recovery hysteresis | TJ(HYS) | 30 | ℃ | 5 | |||
| Thermal resistance junction-to-ambient (EVM board) | RθJA(EVM) | 69 | ℃/W | based on evaluation board (60mm x 45mm, 2-layer, 2oz Cu, 1.6mm FR-4); VIN = 12V, VOUT = 5V, IOUT = 2A, TA = 25℃ | 4 | ||
| Quiescent current, KP522208A (FPWM) | IQ(VIN) | 193 | µA | no switching, VEN = 5 V, VFB = VREF*105%, IOUT = 0 A | 4 | ||
| Internal soft-start time | TSS | 1 | ms | 10% VOUT to 90% VOUT | 5 | ||
| EN delay time | TDLY | 400 | µs | EN high to first switching pulse | 5 | ||
| Switching frequency | FSW | 600 | kHz | VIN = 12V, VOUT = 1.05V, inductor current continuous | 5 | ||
| High-side MOSFET on-resistance | RDSON(HS) | 135 | mΩ | TJ = 25℃, VIN = 12V, VBOOT-SW = 5V | 5 | ||
| Low-side MOSFET on-resistance | RDSON(LS) | 70 | mΩ | TJ = 25℃, VIN = 12V | 5 | ||
| Minimum on-time | tON(min) | 50 | ns | guaranteed by design | 5 | ||
| Minimum off-time | tOFF(min) | 200 | ns | 5 | |||
| Dead time | tDEAD | 10 | ns | 5 |
CAD (KiCad official)
- Symbol:
KP522208ALGA - Footprint:
Package_TO_SOT_SMD:SOT-23-6 - 3D model: SOT-23-6 (KiCad packages3D, STEP)
- 3D model files:
kp522208alga-etched.step/kp522208alga-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);kp522208alga.step/kp522208alga.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Kiwi Instruments datasheet (23 pp, sha256
0ba5b25b1f40267d, retrieved 2026-10-19, 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).