AP63200WU-7 - 32V 2A Sync Buck Converter | Diodes Inc | TSOT-23-6
料号： AP63200WU-7 ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $0.92 | $0.92 |
| 10 | $0.83 | $8.30 |
| 100 | $0.7 | $70.00 |
| 500 | $0.62 | $310.00 |
| 1,000 | $0.55 | $550.00 |
| 3,000 | $0.49 | $1,470.00 |
AP63200WU-7 概述
A buck converter (also called a step-down switching regulator) is a type of switched-mode power supply (SMPS) that efficiently converts a higher DC input voltage to a lower DC output voltage by rapidly switching an inductor-based energy transfer network. Within the broader hierarchy of power management ICs, buck regulators sit alongside boost (step-up), buck-boost, and linear regulators (LDOs); they offer far higher efficiency than LDOs at large input-to-output voltage differentials because they avoid the linear-regulator I*V dropout loss, replacing it with much smaller switching losses. Synchronous buck regulators additionally replace the traditional Schottky rectifier with a low-side MOSFET, eliminating the rectifier forward-voltage drop and improving light-load efficiency.
Key features of the AP63200WU-7 include low quiescent current (low-Iq) operation, integrated high-side and low-side MOSFETs (125 mΩ/typ), a fixed 500 kHz switching frequency, and enhanced EMI reduction techniques that help meet CISPR 25 / CISPR 32 EMI limits in noise-sensitive systems. The device includes internal soft-start, over-current protection (OCP), thermal shutdown, and an enable (EN) input for sequencing. The 500 kHz switching frequency allows small external L/C components while remaining outside the AM broadcast band.
The AP63200 architecture uses peak-current-mode control for fast transient response and simplified loop compensation. Synchronous rectification improves efficiency up to ~88% at 12V to 3.3V / 1A, and proprietary frequency-spreading / low-EMI gate-drive techniques reduce input and switch-node ringing. A wide VIN range allows direct operation from automotive 12V/24V buses, industrial 24V rails, or USB-PD / battery sources.
Typical applications include automotive infotainment and ADAS power rails, industrial 24V sensor and PLC supplies, distributed 5V/3.3V rails from a 12V or 24V bus, set-top boxes, surveillance cameras, white goods, and any compact point-of-load (POL) supply where a small TSOT-23-6 footprint and minimal external component count are required.
When designing with this part, place the input ceramic capacitor (>= 4.7 uF X7R) as close as possible to the PGND/VIN pair and use a low-ESR 4.7 uF to 22 uF ceramic output capacitor. Trace the SW node with the shortest possible loop and keep the feedback divider within 5 mm of the FB pin to avoid noise pickup.
This page synthesizes distributor pricing, drop-in alternatives, application context, and practical design notes not found in the manufacturer datasheet alone, delivering a one-stop engineering reference for the AP63200WU-7.
直接替换替代料： AP63200WU-7 ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： AP63200WU-7 （相同外形与封装尺寸） ——差异在于 Package, Operating Temperature Range, Output Voltage Range, Protection Features, Quiescent Current.
快速对比工具——选择替代料号进行并排对比：
AP63203WU-7
✅ 直接替换✓ 有现货
$0.32 / 个
查看数据手册 →AP63205WU-7
✅ 直接替换✓ 有现货
$0.2036 / 个
查看数据手册 →AP63201WU-7
✅ 直接替换✓ 有现货
$0.45 / 个
查看数据手册 →MP2324GJ-Z
✅ 直接替换📋 参考替代料（不在目录中）
LMR16006XDDCR
✅ 直接替换📋 参考替代料（不在目录中）
AP63200WU-7 最大额定值与电气特性
| 功能 | Synchronous Buck (Step-Down) DC-DC Converter |
| 输入电压范围 | 3.8 V to 32 V |
| 输出电压范围 | 1.2 V to 12 V (adjustable) |
| Output Current (Continuous) | 2 A |
| 拓扑 | Synchronous Buck |
| High-Side MOSFET R_DS(on) | 125 mΩ (typical) |
| 开关频率 | 500 kHz (fixed) |
| Feedback Voltage (Internal Reference) | 0.8 V (typical, per AP63200 family datasheet) |
| 效率 | up to ~88% (12V to 3.3V at 1A, per family datasheet) |
| 工作温度范围 | -40 C to +85 C |
| 封装 | TSOT-23-6 (TSOT26) |
| 安装类型 | Surface Mount |
| Enable Input | Yes (active-high) |
| 软启动 | Internal |
| Protection Features | Over-Current Protection (OCP), Thermal Shutdown |
| MSL 等级 | 1 (per JEDEC J-STD-020, typical for TSOT-26) |
| RoHS 状态 | Compliant |
| Lead-Free | Yes |
AP63200WU-7 引脚配置
| 引脚 1 | EN — Enable input (active-high). Drive high to enable the regulator; connect to VIN or leave open for automatic startup. |
| 引脚 2 | GND — Analog/signal ground. |
| 引脚 3 | SW — Switch node - connection to the external inductor. |
| 引脚 4 | VOUT/FB — Output voltage feedback node. Connect to the output resistor divider (ADJ version) or directly to VOUT. |
| 引脚 5 | VIN — Power input supply (3.8 V to 32 V). |
| 引脚 6 | PGND — Power ground - return for the synchronous low-side MOSFET. |
典型应用
AP63200WU-7 适用于 6 应用s: Automotive Infotainment Power Rails, Industrial 24V Sensor & PLC Supplies, Distributed 5V/3.3V from 12V/24V Bus, Surveillance Camera & PoE Modules, Set-Top Box & Home Gateway Power, White Goods & Appliance Control Boards.
Automotive Infotainment Power Rails
The AP63200WU-7's 3.8V-32V input range and 2A continuous output make it a strong fit for automotive infotainment rails where the supply must survive load-dump transients on the 12V battery bus while still powering 5V USB, 3.3V MCU, and 1.2V core rails. The 500 kHz switching frequency sits well above the AM broadcast band, helping designs pass CISPR 25 EMI limits when paired with a small LC pi-filter. Synchronous rectification with internal 125 mΩ high-side MOSFET delivers up to ~88% efficiency at 12V to 3.3V / 1A, keeping TSOT-26 junction temperature below 100 C with normal copper pour. Designers typically place it between the reverse-battery-protected input and downstream LDOs, using a TVS at VIN for ISO 7637-2 transient compliance.
推荐
Industrial 24V Sensor & PLC Supplies
The AP63200WU-7 accepts the full 24V industrial envelope (nominal 24V +/- 20%, 19.2V-28.8V) and steps down to 5V or 3.3V for PLC logic, sensor hubs, and HMI controllers. Its wide VIN eliminates a front-end preregulator on most DIN-rail designs, and the 2A output delivers 6.6 W (at 3.3V) to 10 W (at 5V) - sufficient for multi-sensor clusters with analog front-ends. The synchronous architecture with peak-current-mode control provides fast transient response for relay-driven loads; internal OCP and thermal shutdown protect the converter when output short circuits occur during commissioning. PCB layout follows IPC-9592 power-converter guidelines with the input capacitor (>= 4.7 uF X7R) within 2 mm of VIN/PGND.
推荐
Distributed 5V/3.3V from 12V/24V Bus
Distributed point-of-load (POL) systems using a 12V or 24V backplane commonly use the AP63200WU-7 to derive local 5V/3.3V/1.2V rails at each PCB. The TSOT-23-6 footprint (2.9 mm x 1.6 mm) places a synchronous buck within millimeters of each load, eliminating long distribution losses and reducing the bulk capacitor bank on the bus. The 500 kHz fixed frequency enables predictable noise placement away from sensitive analog sections, and the synchronous low-side rectifier removes the rectifier-diode forward drop (typically 0.4V at 2A) that would otherwise waste 800 mW. The integrated enable pin supports sequencing when multiple rails must power up in a defined order.
推荐
Surveillance Camera & PoE Modules
Compact PoE and IP-camera modules operate from a 12V or 24V intermediate rail and need a small synchronous buck for the image-processor core. The AP63200WU-7 provides 2A at 3.3V from a 24V PoE-derived supply with ~88% efficiency, keeping the TSOT-26 package within thermal limits under continuous 1080p streaming loads. The 500 kHz switching frequency stays above the audio band, and the wide input range tolerates long PoE cable voltage drops. Designers typically use one AP63200WU-7 per camera board for the main SoC rail and a smaller LDO for analog-image-sensor AVDD. Enhanced EMI performance supports FCC Part 15 Class B compliance with a simple input pi-filter.
推荐
Set-Top Box & Home Gateway Power
Set-top boxes and home gateways typically require 5V/3.3V/1.2V rails at 1A-2A from an external 12V adapter. The AP63200WU-7 fits each rail directly: VIN to 5V for USB-charging ports, 5V to 3.3V for the main SoC, and 3.3V to 1.2V for the core. The 3.8V-32V input range supports universal-input adapters worldwide without front-end re-regulation. Synchronous rectification with internal MOSFETs minimizes external BOM (only inductor, input/output capacitors, feedback divider). The peak-current-mode control provides fast transient response when downstream LDOs draw step loads during channel-change events.
推荐
White Goods & Appliance Control Boards
Refrigerator, washing-machine, and dishwasher control boards run from rectified 24V or 12V mains-derived rails and need rugged synchronous buck regulators for MCU and display power. The AP63200WU-7's 3.8V-32V VIN and 2A continuous output provide a compact solution that handles cold-start (3.8V minimum) and transient over-voltage (32V maximum) without external clamps. The wide -40 C to +85 C ambient range covers appliance operating conditions; internal thermal shutdown and OCP protect the converter during motor inrush and short-circuit faults. The TSOT-23-6 package is suitable for wave-soldered or reflow-soldered boards, with 3,000-piece Tape & Reel packaging matching high-volume SMT lines.
推荐
推荐产品汇总
工程参考数据： AP63200WU-7 ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | AP63203WU-7 | AP63205WU-7 | AP63201WU-7 | MP2324GJ-Z | LMR16006XDDCR |
|---|---|---|---|---|---|---|
| Brand | Diodes Incorporated | Diodes Incorporated | Diodes Incorporated | Diodes Incorporated | Monolithic Power Systems | Texas Instruments |
| Package | TSOT-23-6 | TSOT-23-6 - same | TSOT-23-6 - same | TSOT-23-6 - same | TSOT-23-6 - same | TSOT-23-6 - same |
| Input Voltage Range | 3.8 V to 32 V | 3.8 V to 32 V | 3.8 V to 32 V | 3.8 V to 32 V | 4 V to 32 V | 4 V to 60 V |
| Output Current | 2 A | 2 A | 2 A | 2 A | 2 A | 0.6 A |
| Switching Frequency | 500 kHz | 500 kHz | 500 kHz | 500 kHz | 500 kHz to 1.5 MHz (adj) | 500 kHz to 1.5 MHz (adj) |
| Topology | Synchronous Buck | Synchronous Buck | Synchronous Buck | Synchronous Buck | Synchronous Buck | Synchronous Buck |
关键差异点
- Wide 3.8V-32V input supports 12V/24V buses directly without preregulation （对比 LMR16006XDDCR)
- 500 kHz fixed switching frequency above AM broadcast band （对比 AP63201WU-7)
- 2A continuous output from a 6-pin TSOT-23-6 package （对比 LMR16006XDDCR)
- Synchronous rectification with internal 125 mΩ high-side MOSFET eliminates external Schottky （对比 MP2324GJ-Z)
设计说明
Place the input ceramic capacitor (>= 4.7 uF X7R, 50V or higher rating) as close as possible to the VIN and PGND pins (within 2 mm). Keep the SW-node copper island small and use a single-point ground connection between PGND and the signal GND (pin 2) to avoid high-frequency noise coupling into the feedback path. Route the feedback divider (VOUT to FB) with short, parallel traces and avoid switching-node copper underneath the divider to prevent injected noise.
Estimated: at VIN=24V, VOUT=3.3V, IOUT=2A, total losses are approximately (24-3.3)*2*1/eta plus I^2R losses (~0.5W in HS FET + ~0.2W in LS FET). With ~85% efficiency, total internal dissipation is ~1.7 W. The TSOT-26 theta_JA of ~50 C/W on a 1-oz 2-layer board gives ~85 C junction rise above 25 C ambient - acceptable at 25 C but requires derating at 85 C ambient. Use a thermal copper pour of at least 100 mm^2 on VIN/PGND/SW pads to drop theta_JA to ~40 C/W.
Do not operate AP63200WU-7 below the 3.8V minimum input voltage; the internal HS MOSFET may not fully enhance and the output will drop out of regulation. Do not exceed the 32V absolute maximum; add a 33V TVS (e.g., SMAJ33A) at VIN for automotive load-dump protection. Ensure the FB divider uses 1% or better resistors and place the divider within 5 mm of the FB pin. When replacing with AP63203WU-7 or AP63205WU-7, do not assume pinout equivalence without checking the Pin Descriptions table in the family datasheet.
For CISPR 25 / CISPR 32 EMI compliance, add a small LC pi-filter at the input (e.g., 4.7 uF || ferrite bead || 4.7 uF) to attenuate conducted emissions above 30 MHz. The 500 kHz fundamental and its harmonics fall in the 30 MHz-150 MHz EMI bands; the AP63205WU-7 family variant adds enhanced SW-node ringing control that lowers EMI by ~6 dB at 100 MHz. Shield the inductor with a small ground-connected copper fence if the SW-node copper radiates into adjacent antenna traces.
合规信息
RoHS and lead-free compliance per Diodes Incorporated product page (https://www.diodes.com/part/view/AP63200). Not AEC-Q100 qualified; for AEC-Q100-grade applications consult Diodes automotive-grade parts. Halogen-free status not explicitly listed on the verified product page; set to 'unknown' rather than assume.
