TPSM82822A - 2A Step-Down Module, Integrated Inductor | TI
料号： TPSM82822A ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $2.15 | $2.15 |
| 10 | $1.93 | $19.30 |
| 100 | $1.62 | $162.00 |
| 500 | $1.38 | $690.00 |
| 1,000 | $1.19 | $1,190.00 |
TPSM82822A 概述
A step-down converter, or buck converter, is a switching voltage regulator that efficiently reduces a higher DC input voltage to a lower regulated output. Within the power management IC hierarchy, the TPSM82822A is a power module: it integrates the buck converter IC, power MOSFETs, and the magnetic inductor into one surface-mount package, collapsing an entire DC-DC solution into about 5 mm2 of board area.
Key features include a 2.4 V to 5.5 V input range, 2 A continuous output current, forced PWM operation for constant 2.2 MHz switching frequency and predictable EMI, power-good output, enable pin, and internal soft-start. Efficiency reaches approximately 95% at typical loads, and the high operating frequency allows small external capacitors and low output ripple.
Technically, the module uses a synchronous buck architecture with integrated low-DS(on) MOSFETs and a proprietary control scheme. Integrating the inductor inside the package minimizes parasitic loop inductance, reduces radiated EMI, and enables automated assembly with standard surface-mount equipment per the TPSM8282x datasheet.
Typical applications include powering FPGAs, DSPs, ASICs, and MCUs in industrial systems, optical modules, solid-state drives, and portable devices where board space is at a premium. Forced PWM keeps output ripple low and constant-frequency, suiting noise-sensitive analog and RF rails.
Design consideration: follow the datasheet input/output capacitor recommendations exactly for stability, and provide adequate thermal copper area for sustained 2 A loads; the module does not eliminate thermal design entirely.
直接替换替代料： TPSM82822A ——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： TPSM82822A （相同外形与封装尺寸） ——差异在于 Input Voltage Range, Output Voltage Range, Package, Switching Frequency, Maximum Output Current.
快速对比工具——选择替代料号进行并排对比：
TPSM82822SILR
✅ 直接替换📋 参考替代料（不在目录中）
TPSM82821SILR
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
TPSM82823SILR
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
TPSM82813SILR
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
TPSM82085SILR
⚡ 相同封装 ⚠️ 规格未核验📋 参考替代料（不在目录中）
TPSM82822A 最大额定值与电气特性
| 拓扑 | Synchronous step-down (buck) module |
| 输入电压范围 | 2.4 V to 5.5 V |
| 输出电压范围 | 0.6 V to 4 V (adjustable) |
| Output Current | 2 A |
| 开关频率 | 2.2 MHz (forced PWM) |
| Integrated Inductor | Yes (MicroSiP module) |
| 封装 | uSiP 2 x 2.5 x 1.1 mm |
| 输出数量 | 1 |
| Control Mode | Forced PWM |
| 电源正常输出 | Yes |
| 使能引脚 | Yes |
| 软启动 | Internal |
| 安装类型 | Surface Mount |
| RoHS 状态 | Compliant |
TPSM82822A 引脚配置
| 引脚 1 | PVIN — Power input supply (2.4 V to 5.5 V) |
| 引脚 2 | GND — Ground |
| 引脚 3 | EN — Enable input |
| 引脚 4 | SS/TR or VREG — [DATA_NEEDED: exact pin function per datasheet] |
| 引脚 5 | FB — Feedback input for output voltage adjustment |
| 引脚 6 | PGOOD — Power-good output flag |
| 引脚 7 | VOUT — Regulated output (0.6 V to 4 V) |
| 引脚 8 | SW/inductor node — Internal switching node with integrated inductor |
典型应用
TPSM82822A 适用于 6 应用s: FPGA/DSP Point-of-Load Power, Optical Modules, Solid-State Drives, Portable and Battery-Powered Devices, Industrial Automation Systems, MCU and Wireless Module Power.
FPGA/DSP Point-of-Load Power
The TPSM82822A's 2 A output and 0.6-4 V adjustable range cover core and I/O rails of FPGAs, DSPs, and ASICs. Forced PWM at 2.2 MHz keeps switching noise at a fixed, filterable frequency, protecting noise-sensitive core rails from ripple-induced clock jitter. Placed directly at the load pin with small ceramic output capacitors, the integrated-inductor module delivers a complete rail in about 5 mm2, ideal for dense FPGA clusters where discrete solutions cannot fit.
推荐
Optical Modules
Optical transceiver modules demand compact, low-profile power conversion on very small boards. The 1.1 mm MicroSiP height and 2 x 2.5 mm footprint fit within module enclosures, while forced PWM ensures constant-frequency operation that avoids interfering with sensitive analog front ends. The 2.4 V minimum input suits rails derived from 3.3 V supplies, and 95% typical efficiency minimizes heat inside thermally constrained optical housings, protecting laser diode wavelength stability.
推荐
Solid-State Drives
SSD controllers and NAND power rails benefit from the TPSM82822A's compact integrated-inductor design and fast 2.2 MHz switching, which allows small external capacitors and rapid transient response during read/write bursts. Forced PWM maintains predictable ripple across load transitions between idle and active states. The module's automated-assembly compatibility suits high-volume SSD manufacturing, and its 2 A capacity covers typical controller rail demands from a 5 V or 3.3 V input.
推荐
Portable and Battery-Powered Devices
With a 2.4 V minimum input, the TPSM82822A operates directly from single-cell Li-ion batteries across their full discharge range. The compact MicroSiP package conserves board space in wearables and handheld instruments, while forced PWM produces clean, predictable output for mixed-signal loads. At approximately 95% typical efficiency the module extends battery runtime, and the enable pin supports low-power system shutdown sequences in portable designs.
推荐
Industrial Automation Systems
Industrial controllers, sensors, and communication modules use the TPSM82822A to derive 3.3 V, 2.5 V, or 1.8 V logic rails from 5 V backplanes. The integrated inductor reduces radiated EMI, easing compliance in noisy factory environments, and the power-good flag enables reliable system monitoring and sequencing. Its 2 A capacity and small footprint support dense I/O card designs where multiple point-of-load modules populate limited board area.
推荐
MCU and Wireless Module Power
Microcontrollers and RF/wireless modules require low-noise, well-regulated supplies; the TPSM82822A's forced PWM keeps output ripple at a constant 2.2 MHz rate, easy to filter before sensitive RF blocks. The 1.1 mm profile fits under shields common in wireless designs, and the enable pin plus internal soft-start support clean power-up sequencing. Its 2 A rating covers transmit burst currents of Wi-Fi and cellular modules without voltage sag.
推荐
推荐产品汇总
工程参考数据： TPSM82822A ——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 | TPSM82822SILR | TPSM82821SILR | TPSM82823SILR |
|---|---|---|---|---|
| Package | uSiP 2 x 2.5 x 1.1 mm | uSiP 2 x 2.5 x 1.1 mm - same | uSiP 2 x 2.5 x 1.1 mm - same | uSiP 2 x 2.5 x 1.1 mm - same |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Output Current | 2 A | 2 A | 2 A | 3 A |
| Forced PWM Mode | Yes | No (flexible mode) | Yes | Yes |
| Integrated Inductor | Yes | Yes | Yes | Yes |
| Family Features | PGOOD, EN, internal soft start | PGOOD, EN, internal soft start | Freq sync, spread spectrum, tracking | Freq sync, spread spectrum, tracking |
关键差异点
- Forced PWM constant-frequency operation （对比 TPSM82822SILR)
- Integrated inductor saves design effort （对比 TPS54302QDDCRQ1)
- Higher current in same footprint when scaling （对比 TPSM82823SILR)
设计说明
Follow the TPSM8282x datasheet layout guidelines: place input and output ceramic capacitors as close as possible to the module pins, and connect the GND pad directly to a solid ground plane with multiple vias. Although the inductor is integrated, the input current loop is still critical for EMI - keep the PVIN loop area minimal.
At 2 A continuous output, the module dissipates conduction and switching losses in the small 2 x 2.5 mm package. Provide adequate thermal copper area under and around the module; verify junction temperature against the datasheet derating curves at your maximum ambient temperature. Efficiency of roughly 95% still yields meaningful heat at full load.
Set the output voltage with the FB resistor divider within the 0.6 V to 4 V range and use 1% tolerance resistors. Do not omit the output capacitor or deviate from the datasheet recommended values - the internal compensation assumes specific capacitance ranges for stability at the 2.2 MHz forced-PWM operating point.
合规信息
RoHS compliant and lead-free per TI product information. Detailed material declarations available on TI.com quality pages.
