component
KP522201ALGA
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.
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
markdownKP522201ALGA
Kiwi Instruments · DC-DC Converters · SOT-23-6
KP522201ALGA 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 for the converter. |
| 2 | SW | power_out | Switching node connected to the output inductor through a short, wide trace; recommended DC range is -0.1 V to 17 V (transient below 10 ns: -3 V to 19 V). |
| 3 | VIN | power_in | Input supply pin, operating range 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 receiving the resistor-divided output voltage for output setting and control, with reference voltage 0.768 V; recommended range -0.1 V to 5.5 V. |
| 5 | EN | input | Enable control pin: pull high or leave floating to enable the chip; when tied to VIN, a series pull-up resistor of at least 100 kΩ is required, and it can also set the VIN UVLO threshold; recommended range -0.1 V to 5.5 V. |
| 6 | BST | power_out | Charge-pump supply for the high-side MOSFET gate driver; connect a 100 nF ceramic capacitor between BST and SW, with BOOT-SW recommended at no more than 5.5 V. |
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 input voltage (recommended) | VIN | 4.5 | 17 | V | 3 | ||
| VOUT output voltage range (recommended) | VOUT | 0.768 | 7 | V | 3 | ||
| IOUT output current range (recommended) | IOUT | 0 | 2 | A | 3 | ||
| SW pin voltage (recommended) | SW | -0.1 | 17 | V | DC | 3 | |
| SW pin voltage (recommended) | SW | -3 | 19 | V | Transient < 10 ns | 3 | |
| VIN-SW voltage (recommended) | VIN-SW | -0.1 | 17 | V | DC | 3 | |
| VIN-SW voltage (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 | ||
| Junction temperature operating range (recommended) | TJ | -40 | 125 | ℃ | 4 | ||
| VIN pin voltage (absolute maximum) | VIN | -0.3 | 19 | V | 3 | ||
| SW pin voltage (absolute maximum) | SW | -0.3 | 19 | V | DC | 3 | |
| SW pin voltage (absolute maximum) | SW | -3 | 21 | V | Transient < 10 ns | 3 | |
| VIN-SW voltage (absolute maximum) | VIN-SW | -0.3 | 19 | V | DC | 3 | |
| VIN-SW voltage (absolute maximum) | VIN-SW | -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 | ||
| VIN input voltage range | VIN | 4.5 | 17 | V | 4 | ||
| VIN UVLO rising threshold | VUVLO(R) | 4 | 4.2 | 4.4 | V | VIN 上升 | 4 |
| VIN UVLO falling threshold | VUVLO(F) | 3.6 | 3.8 | 4 | V | VIN 下降 | 4 |
| VIN shutdown current | ISHDN(VIN) | 2.5 | 4.5 | µA | VIN = 12 V, VEN = 0 V | 4 | |
| EN rising threshold voltage | VEN(R) | 1.15 | 1.21 | 1.27 | V | EN 上升，使能开关工作 | 4 |
| EN falling threshold voltage | VEN(F) | 1.08 | 1.14 | 1.2 | V | EN 下降，禁止开关工作 | 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 | VFB | 0.753 | 0.768 | 0.783 | V | TJ = -40℃ 至 125℃, VIN = 12 V | 5 |
| FB pin input leakage current | IFB(LKG) | -100 | 0 | 100 | nA | TJ = 25℃ | 5 |
| Valley current limit (KP522201A) | ILS(OC) | 2.7 | 3.1 | 3.5 | A | VIN = 12 V | 5 |
| VIN quiescent current (KP522201A) | IQ(VIN) | 190 | µA | 无开关动作，VEN = 5 V, VFB = VREF*105%, IOUT = 0 A | 4 | ||
| Internal soft-start time | TSS | 1 | ms | 从 10% VOUT 至 90% VOUT | 5 | ||
| EN delay time | TDLY | 400 | µs | 从 EN 置高至第一次开关脉冲 | 5 | ||
| Switching frequency | FSW | 600 | kHz | VIN = 12V, VOUT = 1.05V, 电流连续 | 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 | 5 | |||
| Minimum off-time | tOFF(min) | 200 | ns | 5 | |||
| Dead time | tDEAD | 10 | ns | 5 | |||
| Zero-crossing detection threshold | IZC | 80 | mA | 5 | |||
| UVP threshold voltage | VUVP | 65 | % | VFB 下降 | 5 | ||
| UVP hysteresis voltage | 6.5 | % | 5 | ||||
| UVP wait time before hiccup | THCP(WAIT) | 110 | µs | 5 | |||
| Hiccup-off time to soft-start restart | THCP(OFF) | 12 | ms | 5 | |||
| OVP threshold voltage | VOVP | 115 | % | VFB 上升 | 5 | ||
| OVP hysteresis voltage | 6.5 | % | 5 | ||||
| Over-temperature protection threshold | TJ(SD) | 155 | ℃ | 5 | |||
| Over-temperature protection recovery hysteresis | TJ(HYS) | 30 | ℃ | 5 | |||
| Junction-to-ambient thermal resistance (EVM board) | RθJA(EVM) | 69 | ℃/W | 基于相应评估板, VIN = 12V, VOUT = 5V, IOUT = 2A, TA = 25℃ | 4 |
CAD (KiCad official)
- Symbol:
KP522201ALGA - Footprint:
Package_TO_SOT_SMD:SOT-23-6 - 3D model: SOT-23-6 (KiCad packages3D, STEP)
- 3D model files:
kp522201alga-etched.step/kp522201alga-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);kp522201alga.step/kp522201alga.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Kiwi Instruments datasheet (23 pp, sha256
543b1f35d8a048ce, 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).