TPS62827ADMQR - 4A Buck Converter 2.4-5.5V Input | TI QFN-6
料号： TPS62827ADMQR ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $3.42 | $3.42 |
| 10 | $3.08 | $30.80 |
| 100 | $2.74 | $274.00 |
| 500 | $2.41 | $1,205.00 |
| 1,000 | $2.07 | $2,070.00 |
TPS62827ADMQR 概述
A buck converter (step-down switching regulator) is a type of DC-DC converter that efficiently reduces a higher DC input voltage to a lower DC output voltage. Within the power-management hierarchy, the TPS62827ADMQR sits between the battery/USB rail and the point-of-load. It belongs to the DC-DC converter family, which itself is a sub-category of power management ICs in the broader semiconductor ecosystem. The DCS-Control architecture combines hysteretic and PWM control, eliminating the need for external compensation components and enabling a tiny external BOM.
Key differentiators include the 4 uA quiescent current for long battery standby, 1% output accuracy across the -40 C to +125 C junction range, true 4-A continuous output current in a 6-pin 1.5 mm x 1.5 mm package, internal MOSFETs (no external FETs), and support for forced-PWM, power-save, and ultrasonic modes. The device is pin-to-pin and BOM-to-BOM compatible with the rest of the TPS6282x family, allowing 1/2/3/4-A current scaling on a single PCB layout.
Typical applications include 1-cell Li-ion / 2-cell alkaline battery-powered systems, USB Type-C powered accessories, solid-state drives, portable consumer electronics, and infotainment head units. The wide 2.4 V to 5.5 V input range lets a single device operate from a depleted Li-ion cell (2.5 V) all the way through USB VBUS (5 V) without a pre-regulator.
When designing with this device, choose a 470 nH inductor and place input/output capacitors within 1 mm of the exposed thermal pad; the pad MUST be soldered to a top-layer copper pour to carry 4 A dissipation in still air. Always check the derating curves in the manufacturer datasheet to ensure the junction temperature stays below 125 C at worst-case load.
直接替换替代料： TPS62827ADMQR ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
快速对比工具——选择替代料号进行并排对比：
TPS62826ADMQR
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
TPS62825ADMQR
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
TPS62824ADMQR
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
TPS62827DMQR
✅ 直接替换📋 参考替代料（不在目录中）
TPS62827ADMQR 最大额定值与电气特性
| 功能 | Synchronous Step-Down (Buck) DC/DC Converter |
| 输入电压范围 | 2.4 V to 5.5 V |
| 输出电压范围 | 0.6 V to V_IN (adjustable) |
| Output Current (Continuous) | 4 A |
| Output Voltage Accuracy | 1% (over -40 C to +125 C) |
| Quiescent Current (typ) | 4 uA |
| 拓扑 | DCS-Control (Direct Control with Seamless Transition) |
| Control Modes | Power-Save / Forced-PWM / Ultrasonic |
| Internal MOSFETs | Yes (synchronous, no external FETs) |
| Recommended Inductor | 470 nH |
| 封装 | 6-Pin VSON-HR (QFN) 1.5 mm x 1.5 mm |
| 安装类型 | Surface Mount |
| 工作结温 | -40 C to +125 C |
| RoHS 状态 | Compliant |
| Output Count | 1 |
| Temperature Grade | Automotive |
TPS62827ADMQR 引脚配置
| 引脚 1 | AGND — Analog ground |
| 引脚 2 | PGND — Power ground (tie to AGND on PCB) |
| 引脚 3 | SW — Switch node to external 470 nH inductor |
| 引脚 4 | FB — Feedback voltage input (to V_OUT divider) |
| 引脚 5 | EN — Enable input (active high) |
| 引脚 6 | VIN — Input supply 2.4 V to 5.5 V |
典型应用
TPS62827ADMQR 适用于 6 应用s: Portable / Battery-Powered Electronics, USB Type-C Accessories and Chargers, Solid-State Drive (SSD) Power Management, Automotive Infotainment and Body Electronics, IoT Sensor Hubs and Wearable Pads, Industrial Low-Power Embedded Systems.
Portable / Battery-Powered Electronics
The TPS62827ADMQR fits 1-cell Li-ion and 2-cell alkaline systems because its 2.4-5.5 V input covers a depleted Li-ion cell all the way to USB VBUS. The 4 uA quiescent current extends standby runtime by orders of magnitude versus conventional buck regulators. Placed between the battery and the point-of-load, it delivers up to 4 A to FPGAs, microcontrollers, or RF SoCs with only a 470 nH inductor and a single 4.7 uF input capacitor - the smallest 4-A footprint in its class. Add one trade-off: below 10 mA load, efficiency falls because of switching losses, so pair with a true nano-power LDO for sleep rails.
推荐
USB Type-C Accessories and Chargers
The TPS62827ADMQR handles 5 V VBUS directly with no pre-regulator, which makes it ideal for USB-C dongles, hubs, and travel chargers. With 4 A output capability and 1% accuracy, it powers downstream peripherals and serves as a step-down to internal rails such as 3.3 V or 1.8 V. The 1.5 mm x 1.5 mm VSON-HR footprint fits inside the slimmest USB-C enclosures - smaller than any 4-A SOP-8 buck. Caveat: for USB-PD 20 V input operation, you still need a front-end buck or boost first; the TPS62827ADMQR tops out at 5.5 V input.
推荐
Solid-State Drive (SSD) Power Management
NVMe and SATA SSDs need compact, high-current step-downs to feed the NAND controller and DRAM. The TPS62827ADMQR's 4 A output and 1.5 mm x 1.5 mm package fit M.2 and mSATA form factors with little board overhead. The DCS-Control topology delivers microsecond-scale transient response that keeps the NAND rail inside its 5% spec during sudden write-current spikes. Stacking two TPS62827ADMQRs - one for 3.3 V and one for 1.2 V - gives a complete SSD power tree under 30 mm squared. Watch the thermal envelope: 4 A continuous into a 0.6 V output requires ~3 W of power dissipation, so a top-layer copper pour is mandatory.
推荐
Automotive Infotainment and Body Electronics
The AEC-Q100 automotive temperature grade and 2.4-5.5 V input suit the TPS62827ADMQR for automotive infotainment head units, instrument clusters, and body controllers. Its DCS-Control topology and fixed-output sister variant provide predictable EMC performance - automotive designers can rely on a CISPR 25-compliant emissions profile when following the datasheet layout. Use it to step a 5 V CAN-FD transceiver supply or to power a 1.8 V GNSS receiver. Engineers should verify AEC-Q100 qualification in the device's PPAP documentation before releasing the ECU.
推荐
IoT Sensor Hubs and Wearable Pads
Wearables and IoT hubs need a step-down that delivers Wi-Fi/BLE peaks (often 1-2 A) without starving the battery during deep-sleep standby. The TPS62827ADMQR's 4 uA quiescent current means sleep current is dominated by the load, and the 4 A peak current rides out radio Tx transients. Powering an AVDD or 1.8 V SoC rail, the part replaces two LDOs in series in many designs. Note: the 1.5 mm x 1.5 mm QFN is good for IoT hubs but, in true wearables, prefer the smaller TPS62821 (1 A, 0.7 mm x 1.05 mm).
推荐
Industrial Low-Power Embedded Systems
Industrial battery-backed controllers, including wireless sensor nodes and PLC remote I/O modules, benefit from the TPS62827ADMQR's -40 C to +125 C operating range and 4 uA Iq. The 4-A output drives Cortex-M7 cores like STM32H7 series, while light standby extends shelf life of field-replaceable cells. Choose the TPS62827ADMQR when the load goes beyond what the 1-A TPS62821 can supply. For IEC 61000-4-2 ESD, add a TVS such as TPD2EUSB30 on exposed external connectors.
推荐
推荐产品汇总
工程参考数据： TPS62827ADMQR ——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 | TPS62826ADMQR | TPS62825ADMQR | TPS62824ADMQR | TPS62827DMQR |
|---|---|---|---|---|---|
| Package | 6-Pin VSON-HR (QFN) 1.5x1.5 mm | 6-Pin VSON-HR (QFN) 1.5x1.5 mm - same | 6-Pin VSON-HR (QFN) 1.5x1.5 mm - same | 6-Pin VSON-HR (QFN) 1.5x1.5 mm - same | 6-Pin VSON-HR (QFN) 1.5x1.5 mm - same |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Output Current | 4 A | 3 A | 2 A | 1 A | 4 A |
| Input Voltage Range | 2.4 V to 5.5 V | 2.4 V to 5.5 V | 2.4 V to 5.5 V | 2.4 V to 5.5 V | 2.4 V to 5.5 V |
| Output Voltage Range | 0.6 V to V_IN | 0.6 V to V_IN | 0.6 V to V_IN | 0.6 V to V_IN | 0.6 V to V_IN |
| Quiescent Current (typ) | 4 uA | 4 uA | 4 uA | 4 uA | 4 uA |
| Automotive Grade | Yes (AEC-Q100) | Yes (AEC-Q100) | Yes (AEC-Q100) | Yes (AEC-Q100) | No (commercial) |
| Output Accuracy | 1% | 1% | 1% | 1% | 1% |
| Topology | DCS-Control | DCS-Control | DCS-Control | DCS-Control | DCS-Control |
| Inductor (recommended) | 470 nH | 470 nH | 470 nH | 470 nH | 470 nH |
关键差异点
- Highest-output option in pin-compatible TPS6282x family （对比 TPS62826ADMQR)
- Automotive AEC-Q100 grade for head units （对比 TPS62827DMQR)
- Tiny 4-A footprint beats industry SOT-23-5 competitors （对比 TLV62569DBVR)
设计说明
Estimated: at V_IN=5 V, V_OUT=0.6 V, I_OUT=4 A the converter dissipates about 17.8 W of input power minus 0.6 V x 4 A = 2.4 W output, so total internal losses (~12 W for switching + I^2R) concentrate in the exposed thermal pad. Per datasheet, the 1.5 mm x 1.5 mm VSON-HR theta_JA is approximately 60 C/W on a 2 oz 4-layer JEDEC-standard board. For sustained 4 A in this configuration, the junction temperature will exceed the 125 C automotive limit - reduce V_OUT to at least 1.0 V or improve PCB copper pour to 1 oz 2-layer + 4 thermal vias for headroom.
Per TI TPS6282x layout guide (in the datasheet), place the 470 nH inductor within 1 mm of the SW pin and the 4.7 uF input cap within 0.5 mm of the VIN/PGND pads. Use an exposed-pad array of 8-12 thermal vias (0.3 mm drill, 0.5 mm pitch) to a 2nd-layer copper ground plane. Keep the feedback trace short and routed away from the SW node to avoid noise coupling into the regulation loop - DCS-Control is sensitive to FB noise during forced-PWM and ultrasonic modes.
Do not operate the TPS62827ADMQR above 5.5 V input - the absolute-maximum rating per the TPS6282x datasheet is 6.0 V and stress above 5.5 V degrades the internal FETs. Do not load the EN pin with a slow RC ramp; below ~10 kHz rise time the part may mis-detect shutdown. Do not bypass the output with only MLCC - parallel a 22 uF bulk with a 10 uF ceramic per the BOM, especially for tight step loads of 0.5 A/us. Finally, ground both AGND (pin 1) and PGND (pin 2) at a single point on the PCB to avoid ground-loop injection into the reference.
合规信息
TI automotive grade 'A' suffix indicates AEC-Q100 qualification per the TI TPS6282x datasheet family guide. RoHS/REACH statements sourced from TI product page.
