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Product Overview
The TPS70802PWPR from Texas Instruments is a dual-output low-dropout (LDO) voltage regulator designed for applications requiring two independent regulated voltages. Housed in a compact 20-HTSSOP package, it provides a fixed 3.3V output at 1A and a fixed 1.8V output at 0.5A, with high accuracy and low dropout voltage. This device integrates power-good (PG) outputs and enable pins for each regulator, making it ideal for powering mixed-signal systems, FPGAs, and microcontrollers in industrial and telecom equipment.
Detailed Technical Specifications
| Parameter |
Value |
| Output Voltage 1 |
3.3V (fixed) |
| Output Current 1 |
1A |
| Output Voltage 2 |
1.8V (fixed) |
| Output Current 2 |
0.5A |
| Dropout Voltage (3.3V output) |
350mV at 1A |
| Dropout Voltage (1.8V output) |
250mV at 0.5A |
| Input Voltage Range |
2.7V to 6V |
| Line Regulation |
0.01%/V |
| Load Regulation |
0.01%/A |
| Quiescent Current (both outputs) |
170µA typical |
| Power-Good (PG) Output |
Open-drain, active high |
| Enable Logic |
Active high |
| Operating Temperature |
-40°C to +125°C |
| Package |
20-HTSSOP (PowerPAD) |
Key Features
- Dual independent LDO outputs with fixed voltages (3.3V and 1.8V)
- High output current: 1A and 0.5A
- Low dropout voltage: 350mV (3.3V) and 250mV (1.8V) at full load
- Low quiescent current: 170µA typical
- Integrated power-good (PG) outputs for each regulator
- Enable pins for independent on/off control
- Thermal shutdown and overcurrent protection
- Stable with ceramic output capacitors (≥2.2µF)
- PowerPAD package for enhanced thermal dissipation
Target Applications
- 5G base station power management (e.g., powering FPGA core and I/O)
- Automotive dashboard infotainment systems (e.g., processor and display power)
- Industrial PLC and motor control modules
- Medical imaging equipment (e.g., ultrasound system power)
- Networking switches and routers
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TPS70802PWPR. Our core advantages include:
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and seals to ensure ESD protection and physical integrity.
產品概述
TPS70802PWPR 是德州儀器(TI)推出的雙路低壓差(LDO)穩壓器,專為需要兩路獨立穩壓電壓的應用而設計。採用緊湊的 20-HTSSOP 封裝,提供固定的 3.3V/1A 和 1.8V/0.5A 輸出,具有高精度和低壓差特性。該器件集成了電源正常(PG)輸出和使能引腳,非常適合為工業和電信設備中的混合信號系統、FPGA 和微控制器供電。
詳細技術參數
| 參數 |
數值 |
| 輸出電壓 1 |
3.3V(固定) |
| 輸出電流 1 |
1A |
| 輸出電壓 2 |
1.8V(固定) |
| 輸出電流 2 |
0.5A |
| 壓差(3.3V 輸出) |
350mV @ 1A |
| 壓差(1.8V 輸出) |
250mV @ 0.5A |
| 輸入電壓範圍 |
2.7V 至 6V |
| 線性調整率 |
0.01%/V |
| 負載調整率 |
0.01%/A |
| 靜態電流(雙路輸出) |
170µA(典型) |
| 電源正常(PG)輸出 |
開漏,高電平有效 |
| 使能邏輯 |
高電平有效 |
| 工作溫度 |
-40°C 至 +125°C |
| 封裝 |
20-HTSSOP(PowerPAD) |
核心特性
- 雙路獨立 LDO 輸出,固定電壓(3.3V 和 1.8V)
- 高輸出電流:1A 和 0.5A
- 低壓差:3.3V 輸出 350mV,1.8V 輸出 250mV(滿載)
- 低靜態電流:典型 170µA
- 集成電源正常(PG)輸出,每路獨立
- 使能引腳,獨立開關控制
- 熱關斷和過流保護
- 支持陶瓷輸出電容(≥2.2µF)
- PowerPAD 封裝增強散熱
典型應用場景
- 5G 基站電源管理(例如為 FPGA 內核和 I/O 供電)
- 汽車儀表盤信息娛樂系統(例如處理器和顯示屏供電)
- 工業 PLC 和電機控制模塊
- 醫療成像設備(例如超聲系統電源)
- 網絡交換機和路由器
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