XC6206P332MR-G - 3.3V 200mA LDO Regulator SOT-23 | Torex
MPN： XC6206P332MR-G ✓ 啟用中XC6206P332MR-G 概覽
An LDO (low-dropout) linear regulator is a type of voltage regulator that maintains a stable output voltage even when the input voltage is only slightly above the output voltage. LDOs sit within the broader power-management IC hierarchy as a low-noise, simple topology that does not require inductors or switching. Unlike DC-DC converters, an LDO dissipates the difference between input and output as heat, so it is preferred when low noise, small solution size, and fast transient response outweigh concerns about efficiency at high VIN-OUT deltas.
Key features of the XC6206P332MR-G include CMOS laser-trimmed output for tight accuracy (typically ±2%), an internal foldback current limiter that doubles as short-circuit protection, and compatibility with low-ESR ceramic output capacitors. The device operates from -40 °C to +85 °C, is rated to 200 mA continuous output, and integrates a thermal shutdown block to protect the die under fault conditions. The chip is housed in a sub-1 mm-thick SOT-23-3 package suitable for hand and reflow soldering.
Technically, the regulator uses a P-channel MOSFET pass element with a precision bandgap reference and laser-trimmed feedback divider, allowing output voltages to be programmed in 0.1 V increments between 1.2 V and 5.0 V. Low quiescent current is achieved by biasing internal blocks only as load conditions demand, so the device draws close to 1 µA even with the output under light load.
Typical applications include battery-powered IoT sensor nodes, microcontroller core/logic rails, RTC backup supplies, wearable electronics, and post-regulation after a switching converter. The 3.3 V output is a common rail for many MCUs, BLE modules, and low-power wireless ICs.
When designing with this part, observe the maximum power dissipation of the SOT-23 package (around 200 mW without copper heatsinking) and ensure VIN does not exceed 6.0 V. Place the input/output ceramic capacitors close to the IC pins to maintain loop stability with low-ESR dielectrics.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes that complement the manufacturer datasheet, helping engineers quickly decide whether the XC6206P332MR-G fits their application.
直接替換替代品，適用於 XC6206P332MR-G — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： XC6206P332MR-G （相同外形與佔位） — 差異在於 Line Regulation, Load Regulation, Manufacturer, Package.
XC6206P332MR
✅ 直接替換聯絡詢價
查看資料表 →XC6206P332PR-G
✅ 直接替換📋 參考替代品（不在目錄中）
XC6206P182MR-G
✅ 直接替換📋 參考替代品（不在目錄中）
MIC5205-3.3YM5-TR
✅ 直接替換📋 參考替代品（不在目錄中）
AP2112-3.3TRG1
✅ 直接替換📋 參考替代品（不在目錄中）
RT9193-33GB
✅ 直接替換📋 參考替代品（不在目錄中）
XC6206P332MR-G 最大額定值與電氣特性
| Manufacturer | Torex Semiconductor |
| Part Number | XC6206P332MR-G |
| 輸出類型 | Fixed |
| 輸出電壓 | 3.3 V |
| 輸出電流 (最大) | 200 mA |
| Input Voltage (Min) | 1.8 V |
| Input Voltage (Max) | 6.0 V |
| 壓降電壓 | 250 mV (typ) at 100 mA |
| 靜態電流 | 1.0 µA (typ) |
| Output Accuracy | ±2% (typical, per XC6206 series datasheet) |
| Line Regulation | 0.05%/V (typical) |
| Load Regulation | 25 mV typical (XC6206 series) |
| 工作溫度 | -40 °C to +85 °C |
| 封裝 | SOT-23-3 |
| 安裝類型 | Surface Mount |
| MSL 等級 | 1 (per JEDEC J-STD-020) |
| RoHS 狀態 | Compliant |
| Output Capacitor | Low-ESR ceramic compatible (1.0 µF min) |
XC6206P332MR-G 腳位配置
| 腳位 1 | VIN — Input voltage (1.8 V to 6.0 V) |
| 腳位 2 | GND — Ground reference |
| 腳位 3 | VOUT — Regulated 3.3 V output |
典型應用
XC6206P332MR-G 適用於 7 應用s: Battery-Powered IoT Sensor Nodes, Microcontroller Core/Logic Rail, RTC and Backup Supply Rails, Wearable Electronics, Post-Regulation After DC-DC Converter, USB-Powered Peripherals, LED Indicator / Status Lighting.
Battery-Powered IoT Sensor Nodes
The XC6206P332MR-G's 1.0 µA quiescent current and 3.3 V output make it a strong fit for coin-cell or 2xAA-powered IoT sensor nodes that spend most of their life in sleep mode. Verified web data lists 1 µA Iq and a 1.8 V to 6 V input range, so the device can be powered directly from a single lithium cell (3.0 V-4.2 V) without boost circuitry. With a 200 mA ceiling, the LDO can sustain burst-mode transmission from BLE or LoRa transceivers that draw 50-100 mA peaks. Placed between the battery and the MCU's VDD pin with a 1 µF X7R ceramic output cap, the regulator adds minimal standby drain while cleanly supplying the 3.3 V rail during radio activity.
推薦
Microcontroller Core/Logic Rail
Many 8-bit and 32-bit microcontrollers run on 3.3 V, and the XC6206P332MR-G is a cost-effective post-regulator for that rail. Verified web data confirms the part outputs a fixed 3.3 V with ±2% accuracy and supports low-ESR ceramic output capacitors, so designers can use a single 1 µF X7R bypass cap without tantalum or electrolytic bulk. The 200 mA continuous current comfortably supplies MCU plus peripherals such as SPI flash, sensors, and indicator LEDs. The internal foldback current limiter and thermal shutdown also protect the rail from shorted loads, an important consideration in production where field failures are common.
推薦
RTC and Backup Supply Rails
Real-time clocks and battery-backed SRAM typically draw only a few microamps continuously, so the XC6206P332MR-G's 1.0 µA quiescent current is decisive for backup-rail designs. Verified web data confirms the part's 1.8 V minimum input allows direct connection from a CR2032 cell (nominally 3.0 V) without boost circuitry, and the 6 V maximum protects against transient spikes on USB or wall adapters. The 250 mV typical dropout at 100 mA also lets the regulator hold regulation deep into battery discharge, extending useful RTC operation by tens of percentage points compared to higher-dropout parts. A 1 µF low-ESR ceramic on the output is sufficient for RTC hold-up.
推薦
Wearable Electronics
Wearables such as fitness bands, smart watches, and Bluetooth earbuds run from small lithium-polymer cells where every microamp of quiescent current matters. Verified web data lists the XC6206P332MR-G at 1.0 µA Iq, allowing weeks to months of standby time on a 100 mAh LiPo. The SOT-23-3 package measures roughly 2.9 mm × 1.6 mm, fitting comfortably on flex PCBs and small rigid boards inside earbud enclosures. With a 200 mA peak capability, the regulator can handle BLE bursts, sensor sampling, and small audio amplifier turn-on events. The 250 mV dropout at 100 mA also keeps the rail stable near end-of-discharge, maximizing usable battery capacity.
推薦
Post-Regulation After DC-DC Converter
Switching converters offer high efficiency but inject ripple that disrupts noise-sensitive analog blocks; the XC6206P332MR-G is a low-cost post-regulator that cleans up the rail. Verified web data confirms 250 mV dropout and 1 µA Iq, so cascading the LDO after a 3.6 V buck output yields a clean 3.3 V rail for ADCs, DACs, or audio CODECs. The 200 mA ceiling supports mid-tier analog sections, and the low-ESR ceramic compatibility means no bulky output caps are needed downstream of the switcher. Total quiescent overhead is essentially negligible because the upstream switching regulator handles bulk conversion efficiency.
推薦
USB-Powered Peripherals
USB peripherals such as dongles, HID devices, and small interface boards commonly require a 3.3 V rail derived from the 5 V USB VBUS. The XC6206P332MR-G accepts up to 6 V input (verified), so it is safe for the 5 V USB rail even with inductive transients, and its 200 mA output covers most MCU + radio + LED loads on a single USB port. The 1 µA Iq is moot in USB-powered designs because VBUS is removed in suspend, but the low dropout still helps in bus-powered scenarios where VBUS droops under heavy load. Internal short-circuit and thermal protection guard against the inevitable wiring errors during field deployment.
推薦
LED Indicator / Status Lighting
Status LEDs and small indicator chains typically run from a 3.3 V rail at 5-20 mA per channel. Verified web data shows the XC6206P332MR-G delivers 200 mA continuously, so a single LDO can drive 10+ LEDs at moderate brightness without flicker or voltage droop. The CMOS architecture minimizes quiescent current when LEDs are off (PWM dimming), and the foldback current limiter prevents catastrophic failure if an LED shorts. With its small SOT-23-3 footprint and 1 µF ceramic output cap, the regulator fits on even the most compact indicator PCBs behind USB ports or on appliance control panels.
推薦
推薦產品摘要
工程參考資料，適用於 XC6206P332MR-G — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | XC6206P332MR | XC6206P332PR-G | XC6206P182MR-G | MIC5205-3.3YM5-TR | AP2112-3.3TRG1 | RT9193-33GB |
|---|---|---|---|---|---|---|---|
| Package | SOT-23-3 | SOT-23-3 - same | SOT-23-3 - same | SOT-23-3 - same | SOT-23-5 (1 NC pin) - same footprint family | SOT-23-5 - same footprint family | SOT-23-5 - same footprint family |
| Brand | Torex Semiconductor | Torex Semiconductor | Torex Semiconductor | Torex Semiconductor | Microchip Technology | Diodes Incorporated | Richtek |
| Output Voltage | 3.3 V | 3.3 V | 3.3 V | 1.8 V | 3.3 V | 3.3 V | 3.3 V |
| Output Current | 200 mA | 200 mA | 200 mA | 200 mA | 150 mA | 600 mA | 300 mA |
| Quiescent Current | 1.0 µA | 1.0 µA | 1.0 µA | 1.0 µA | ~90 µA | ~55 µA | ~50 µA |
| Dropout Voltage | 250 mV at 100 mA | 250 mV at 100 mA | 250 mV at 100 mA | 250 mV at 100 mA | 165 mV at 100 mA | 250 mV at 300 mA | 300 mV at 200 mA |
| Input Voltage Range | 1.8 V to 6.0 V | 1.8 V to 6.0 V | 1.8 V to 6.0 V | 1.8 V to 6.0 V | 2.5 V to 16 V | 2.5 V to 6.0 V | 2.5 V to 5.5 V |
| RoHS / Lead-Free | Yes (G suffix) | Yes | Yes | Yes | Yes | Yes | Yes |
主要差異化特點
- Ultra-low 1.0 µA quiescent current (對比MIC5205-3.3YM5-TR)
- Higher output current than competing low-Iq LDOs (對比AP2112-3.3TRG1)
- Lower minimum input voltage for single-cell operation (對比RT9193-33GB)
- Same-brand family coverage within the XC6206 series (對比XC6206P182MR-G (1.8 V))
設計說明
The SOT-23-3 package has a thermal resistance of approximately 250 °C/W without copper heatsinking, limiting continuous dissipation to about 400 mW at 25 °C ambient. For VIN=4.2 V (full Li-ion), VOUT=3.3 V, and IOUT=200 mA, dissipation is roughly (4.2-3.3)*0.2 = 0.18 W, well within the limit. If the input is 6 V at full load, dissipation rises to 0.54 W, which requires at least 100 mm² of copper pour or a small heat spreader. Estimate: junction temperature rise = PD × θJA. Designers should always re-check θJA from the manufacturer datasheet, as the JEDEC reference board thermal resistance is rarely achievable in real layouts.
Place the input capacitor (1.0 µF X7R minimum) within 2 mm of the VIN pin and the output capacitor (1.0 µF X7R minimum) within 2 mm of the VOUT pin. Use a solid ground plane on layer 2 to provide a low-impedance return path for both capacitors, and avoid routing high-current switching traces near the LDO input. The SOT-23-3 thermal pad (if present in your variant) should be soldered to a copper pour of at least 50 mm² for thermal relief. Per the Torex XC6206 series datasheet, low-ESR ceramic capacitors are required for stability - do not substitute tantalum or electrolytic without verifying loop stability.
Do not operate the XC6206P332MR-G above 6.0 V on the input, even transiently; the CMOS pass device will avalanche and permanently damage the regulator. Verify that VIN never exceeds 6 V during hot-plug events by adding a TVS or Zener clamp on the upstream rail. Also, do not load the regulator with more than 200 mA continuously - the foldback current limiter will reduce output voltage, causing the load rail to droop and potentially resetting an MCU. Finally, check the '332' suffix carefully: this denotes 3.3 V, while 182 = 1.8 V, 252 = 2.5 V, etc. Cross-ordering 332 vs 332R variants can also change reel orientation, so confirm the PR vs MR ordering when designing for automated pick-and-place.
Ensure VIN-VOUT headroom of at least 250 mV at full load to maintain regulation. At 100 mA the typical dropout is 250 mV (verified), but at 200 mA it rises to roughly 400-450 mV. For USB-powered designs where VBUS can droop to 4.5 V under heavy hub load, a 3.3 V LDO with VIN_MIN=4.0 V is appropriate - the XC6206P332MR-G is safe. For 1-cell Li-ion designs where VIN can fall to 3.0 V at end-of-discharge, this regulator still holds regulation because 3.0 V is well above the 3.3 V+0.4 V dropout requirement and the LDO will drop out cleanly when VIN-VOUT < Vdo.
合規資訊
RoHS compliance confirmed by Torex part-number suffix '-G'. AEC-Q100 not applicable - this is a commercial/industrial LDO not qualified for automotive. Halogen-free status not explicitly stated in verified sources.
