REG104
- NEW DMOS TOPOLOGY:
Ultra Low Dropout Voltage:
230mV typ at 1A and 3.3V Output
Output Capacitor NOT Required for Stability - FAST TRANSIENT RESPONSE
- VERY LOW NOISE: 33µVRMS
- HIGH ACCURACY: ±2% max
- HIGH EFFICIENCY:
IGND = 1.7mA at IOUT = 1A
Not Enabled: IGND = 0.5µA - 2.5V, 2.7V, 3.0V, 3.3V, 5.0V AND ADJUSTABLE OUTPUT VERSIONS
- THERMAL PROTECTION
- SMALL SURFACE-MOUNT PACKAGES: SOT223-5, DDPAK-5
- APPLICATIONS
- PORTABLE COMMUNICATION DEVICES
- BATTERY-POWERED EQUIPMENT
- MODEMS
- BAR-CODE SCANNERS
- BACKUP POWER SUPPLIES
All trademarks are the property of their respective owners.
The REG104 is a family of low-noise, low-dropout linear regulators with low ground pin current. Its new DMOS topology provides significant improvement over previous designs, including low dropout voltage (only 230mV typ at full load), and better transient performance. In addition, no output capacitor is required for stability, unlike conventional low dropout regulators that are difficult to compensate and require expensive low ESR capacitors greater than 1µF.
Typical ground pin current is only 1.7mA (at IOUT = 1A) and drops to 0.5µA in not enabled mode. Unlike regulators with PNP pass devices, quiescent current remains relatively constant over load variations and under dropout conditions.
The REG104 has very low output noise (typically 33µVRMS for VOUT = 3.3V with CNR = 0.01µF), making it ideal for use in portable communications equipment. On-chip trimming results in high output voltage accuracy. Accuracy is maintained over temperature, line, and load variations. Key parameters are tested over the specified temperature range (–40°C to +85°C).
The REG104 is well protected—internal circuitry provides a current limit which protects the load from damage. Thermal protection circuitry keeps the chip from being damaged by excessive temperature. The REG104 is available in the DDPAK-5 and the SOT223-5.
技术文档
| 类型 | 标题 | 下载最新的英语版本 | 日期 | |||
|---|---|---|---|---|---|---|
| * | 数据表 | DMOS 1A Low-Dropout Regulator 数据表 (Rev. G) | 2005年 9月 22日 | |||
| 应用手册 | LDO 噪声揭秘 (Rev. B) | PDF | HTML | 英语版 (Rev.B) | PDF | HTML | 2020年 9月 16日 | |
| 应用手册 | LDO PSRR Measurement Simplified (Rev. A) | PDF | HTML | 2017年 8月 9日 | |||
| 应用手册 | 简化的 LDO PSRR 测量 | 最新英语版本 (Rev.A) | PDF | HTML | 2010年 7月 28日 | ||
| 应用手册 | Packaging Limits Range of Linear Regulators | 2010年 5月 8日 | ||||
| 应用手册 | 所选封装材料的热学和电学性质 | 2008年 10月 16日 | ||||
| 用户指南 | DEM-SOT223LDO Demonstration Fixture | 2003年 10月 15日 | ||||
| 用户指南 | DEM-TO263LDO Demonstration Fixture | 2003年 10月 15日 | ||||
| 更多文献资料 | DMOS Delivers Dramatic Performance Gains to LDO Regulators (EDN mag) | 2001年 2月 14日 |
设计和开发
如需其他信息或资源，请点击以下任一标题进入详情页面查看（如有）。
DEM-SOT223LDO — 采用 SOT223 (DCQ) 封装与大多数正输出 LDO 兼容的 DEM-SOT223LDO
The Texas Instruments DEM-SOT223LDO demonstration module (DEM) helps designers evaluate the operation and performance of Texas Instruments low-dropout regulators (LDOs). This module is compatible with most positive output LDOs offered in the SOT223 (DCQ) package.
SN65DSI83EVM — SN65DSI83 MIPI® DSI 转 LVDS 桥接评估模块和 FlatLink™ 集成电路
SN65DSI83Q1-EVM — MIPI® DSI 转 LVDS 桥接和 FlatLink™ 集成电路评估模块
SN65DSI85EVM — SN65DSI85 双通道 MIPI® DSI 转双链路 FlatLink™ LVDS 桥接评估模块
SN65DSI85Q1-EVM — 双通道 MIPI® DSI 转双链路 FlatLink LVDS 桥接器评估模块
TPS79328EVM — TPS79328 评估模块
The purpose of this EVM is to facilitate evaluation of the TPS793xx family of LDO regulators. Each EVM package contains one SLVP191 test board, with either a TPS79301DBV linear regulator or a TPS79328DBV linear regulator, as well as supporting passive components. The TPS79301DBV adjustable device (...)
TIPD201 — 适用于汽车类电池组监控的隔离式分流/电压测量参考设计
这项具有四线分流电阻器的隔离式输入设计非常适合使用高低电压汽车电池组的此类应用。它可以用于监测电池组电流（从 -5A 到 +5A）和极高电压（高达 750V）。
有关输入和参考驱动器的 TINA 仿真可验证设计解决方案和组件选择，而测量的结果可证明精密设计的性能。
| 封装 | 引脚 | CAD 符号、封装和 3D 模型 |
|---|---|---|
| SOT-223 (DCQ) | 6 | Ultra Librarian |
| TO-263 (KTT) | 5 | Ultra Librarian |
订购和质量
- RoHS
- REACH
- 器件标识
- 引脚镀层/焊球材料
- MSL 等级/回流焊峰值温度
- MTBF/时基故障估算
- 材料成分
- 鉴定摘要
- 持续可靠性监测
- 制造厂地点
- 封装厂地点
推荐产品可能包含与 TI 此产品相关的参数、评估模块或参考设计。