TPSM82816 - 6A Step-Down Power Module 2.7-6V | TI
料号： TPSM82816SIER ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $4.5 | $4.50 |
| 10 | $4.05 | $40.50 |
| 100 | $3.6 | $360.00 |
| 500 | $3.2 | $1,600.00 |
| 1,000 | $2.85 | $2,850.00 |
TPSM82816SIER 概述
A step-down power module is a complete DC/DC converter solution that combines the switching regulator, power MOSFETs, and magnetic components in a single package. Unlike discrete regulators that require separate inductor selection and layout optimization, power modules simplify design, shrink solution size, and reduce EMI and efficiency risk. Power modules sit within the power management IC hierarchy, bridging discrete converters and fully integrated PMICs.
Key features include an adjustable output voltage from 0.6V to 5.5V via a single resistor divider, optional frequency synchronization to an external clock, adjustable soft-start, and output voltage tracking for rail sequencing. Peak efficiency exceeds 90% for typical 5V-to-1.8V conversions, with the shielded integrated inductor improving EMI behavior.
The device is based on a fixed-frequency peak current-mode control topology, which provides fast transient response and stable operation with ceramic output capacitors. The package integrates everything needed for a minimal-footprint POL supply, and protection features include overcurrent, overvoltage, and thermal shutdown. The switching frequency can be programmed to trade efficiency against solution size.
Typical applications include POL power for FPGAs, ASICs, and processors in telecommunication, test and measurement, medical, and industrial systems, where TI cites high power density and ease of use as primary benefits. Because the family is pin-to-pin compatible, a single PCB layout supports current tiers from 1A to 6A, simplifying BOM scaling across product variants.
When designing with the TPSM82816, provide adequate input and output ceramic capacitance for stability and transient response, and use the SS/TRACK pin to sequence multiple rails in multi-voltage systems.
直接替换替代料： TPSM82816SIER ——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： TPSM82816SIER （相同外形与封装尺寸） ——差异在于 Input Voltage Range, Package, Protection Features, Topology, Family.
快速对比工具——选择替代料号进行并排对比：
TPSM82814SIER
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
TPSM82813SIER
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
TPSM82810SIER
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
TPSM82816PVCAR
✅ 直接替换📋 参考替代料（不在目录中）
TPSM82816SIER 最大额定值与电气特性
| 拓扑 | Synchronous step-down (buck) power module |
| 输入电压范围 | 2.7 V to 6 V (2.75 V per Mouser listing) |
| 输出电压范围 | 0.6 V to 5.5 V (adjustable) |
| 最大输出电流 | 6 A |
| Control Topology | Fixed-frequency peak current-mode |
| Frequency Synchronization | Yes (optional external clock) |
| 软启动 | Adjustable |
| Output Voltage Tracking | Yes (SS/TRACK pin) |
| Peak Efficiency | >90% (typical 5V to 1.8V conversion) |
| 输出数量 | 1 |
| Integrated Inductor | Yes (shielded) |
| Protection Features | Overcurrent, overvoltage, thermal shutdown |
| 封装 | MicroSiP (SIE) |
| Family | TPSM8281x pin-to-pin 1A/2A/3A/4A/6A compatible |
| 安装类型 | Surface Mount |
| Applications | Telecommunication, test and measurement, medical |
TPSM82816SIER 引脚配置
| 引脚 1 | PVIN — Input supply voltage (2.7V to 6V) |
| 引脚 2 | EN — Enable pin |
| 引脚 3 | SS/TRACK — Soft-start and voltage tracking |
| 引脚 4 | RT/CLK — Frequency setting / external clock sync |
| 引脚 5 | VFB — Feedback for output voltage adjustment |
| 引脚 6 | AGND — Analog ground |
| 引脚 7 | PGND — Power ground |
| 引脚 8 | VOUT — Regulated output (0.6V to 5.5V) |
典型应用
TPSM82816SIER 适用于 6 应用s: FPGA and Processor Point-of-Load Power, Telecommunication Equipment, Test and Measurement Instruments, Medical and Diagnostic Equipment, Industrial Automation and Robotics, Compact and Portable Instrumentation.
FPGA and Processor Point-of-Load Power
The TPSM82816's 6A capability and 0.6-5.5V adjustable output directly cover FPGA core and I/O rail requirements, while its fast peak current-mode transient response handles sharp load steps typical of processor clocks. Integrated shielding reduces switching noise near sensitive digital circuits, and SS/TRACK sequencing simplifies multi-rail power-up. Placing the module within millimeters of the load pin minimizes parasitic drop; one layout also supports 1A-4A family siblings for derivative boards.
推荐
Telecommunication Equipment
TI cites telecommunication as a primary market for the TPSM8281x family, where dense line cards need compact, efficient 6A point-of-load conversion from 5V distribution rails. The 2.7-6V input range and over 90% peak efficiency reduce thermal load in sealed enclosures. Frequency synchronization lets hundreds of modules switch in phase, avoiding audible beat tones and easing EMC qualification across the card.
推荐
Test and Measurement Instruments
Bench instruments and modular measurement systems require clean, low-EMI rails for ADCs and clock circuitry; the TPSM82816's shielded inductor and synchronized switching minimize spurious noise pickup. Its pin-to-pin family lets a common carrier PCB populate 1A to 6A modules for different instrument tiers, cutting qualification effort. The adjustable 0.6-5.5V output covers analog, digital, and interface supplies from one BOM position.
推荐
Medical and Diagnostic Equipment
TI explicitly lists medical applications for the TPSM8281x family. Diagnostic platforms use the 6A module for processor and memory rails where power density is limited, and the integrated protection set (overcurrent, overvoltage, thermal shutdown) supports fail-safe operation. The complete-module construction reduces component count, simplifying design verification. For patient-adjacent systems, pair with isolated upstream supplies and verify IEC 60601 compliance at the system level.
推荐
Industrial Automation and Robotics
Industrial controllers drive relays, sensors, and communications from 5V buses; the TPSM82816's 2.7-6V input and 6A output deliver robust point-of-load power for PLC I/O and edge compute. Fixed-frequency current-mode control gives predictable behavior across line and load, and wide protection coverage handles fault conditions common on factory floors. Single-layout scalability to 1A-4A variants supports product families with mixed power budgets.
推荐
Compact and Portable Instrumentation
The MicroSiP package with integrated inductor achieves high power density for handheld and board-space-constrained designs. Eliminating external magnetics cuts solution height and BOM risk, while over 90% peak efficiency extends battery runtime in portable testers and field instruments. Adjustable soft-start limits inrush from battery sources, and the family's pin-to-pin compatibility allows a 6A engineering build to be cost-reduced to lower-current variants in production.
推荐
推荐产品汇总
工程参考数据： TPSM82816SIER ——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 | TPSM82814SIER | TPSM82813SIER | TPSM82810SIER |
|---|---|---|---|---|
| Package | MicroSiP (SIE) | MicroSiP (SIE) - same | MicroSiP (SIE) - same | MicroSiP (SIE) - same |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Output Current | 6 A | 4 A | 3 A | 1 A |
| Input Voltage Range | 2.7 V to 6 V | 2.7 V to 6 V | 2.7 V to 6 V | 2.7 V to 6 V |
| Output Voltage Range | 0.6 V to 5.5 V | 0.6 V to 5.5 V | 0.6 V to 5.5 V | 0.6 V to 5.5 V |
| Control Topology | Peak current-mode | Peak current-mode | Peak current-mode | Peak current-mode |
| Frequency Synchronization | Yes | Yes | Yes | Yes |
| Integrated Inductor | Yes (shielded) | Yes | Yes | Yes |
关键差异点
- Highest current tier in pin-compatible family （对比 TPSM82814SIER)
- Frequency synchronization standard （对比 TPSM82810SIER)
- Trade-off: higher cost than lower-current tiers （对比 TPSM82813SIER)
设计说明
Place input ceramic capacitance (per datasheet recommendation) directly at the PVIN/PGND pins; even with an integrated inductor, high di/dt loops remain at the module pins. Use solid ground planes under the MicroSiP footprint to minimize loop area and support thermal dissipation through the package. Keep the VFB divider traces short and away from the switch node to preserve regulation accuracy.
Although peak efficiency exceeds 90% for 5V-to-1.8V conversion, at 6A continuous load, losses of roughly 0.5-1W occur depending on VOUT. Verify junction temperature against the datasheet theta-JA with your PCB copper area; larger ground pours reduce thermal resistance. Thermal shutdown protects the device, but repeated trips indicate inadequate copper or airflow.
Do not exceed the 6V absolute maximum input - 5V rails with transients can approach the limit. When paralleling or cascading modules, use frequency synchronization to avoid beat frequencies. When using SS/TRACK for sequencing, ensure the tracked rail matches the ratio expected by the target FPGA/processor, and re-verify output stability with the actual output capacitance selection.
合规信息
Compliance status not stated in provided web data; verify on ti.com product page quality section.
