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 1uF.
Typical ground pin current is only 1.7mA (at IOUT = 1A) and drops to 0.5uA in not enabled mode. Unlike regulators with PNP pass devices, quiescent current remains relatively constant over load variations and under dropout conditions
| REG104-25 | REG104-33 | REG104-5 | REG104-A | |
| Iout(Max)(A) | 1 | 1 | 1 | 1 |
| Vdo(Typ)(mV) | 230 | 230 | 320 | 230 |
| Iq(Typ)(mA) | 0.6 | 0.6 | 0.6 | 0.6 |
| Vin(Min)(V) | 2.1 | 2.1 | 2.1 | 2.1 |
| Vin(Max)(V) | 15 | 15 | 15 | 15 |
| Vout(Min)(V) | 2.5 | 3.3 | 5 | |
| Vout(Max)(V) | 2.5 | 3.3 | 5 | |
| Vout Adj(Min)(V) | 1.295 | |||
| Vout Adj(Max)(V) | 5.5 | |||
| Accuracy(%) | 2 | 2 | 2 | 2 |
| Output Capacitor Type | Capacitor Free | Capacitor Free | Capacitor Free | Capacitor Free |
| Fixed Output Options(V) | 2.5 | 3.3 | 5 | |
| Pin/Package | 5DDPAK/TO-263, 6SOT-223 | 5DDPAK/TO-263, 6SOT-223 | 5DDPAK/TO-263, 6SOT-223 | 5DDPAK/TO-263, 6SOT-223 |
| Rating | Catalog | Catalog | Catalog | Catalog |
| Regulated Outputs(#) | 1 | 1 | 1 | 1 |
| 器件 | 状态 | 温度 (oC) | 价格（美元） | 封装 | 引脚 | 封装数量 | 封装载体 | 丝印标记 |
| REG104FA-A | OBSOLETE | DDPAK/TO-263 (KTT) | 5 | ||||
| REG104FA-A/500 | ACTIVE | -40 to 85 | 2.90 | 1ku | DDPAK/TO-263 (KTT) | 5 | 500 | LARGE T&R | |
| REG104FA-AKTTT | ACTIVE | -40 to 85 | 2.90 | 1ku | DDPAK/TO-263 (KTT) | 5 | 50 | SMALL T&R | |
| REG104FA-AKTTTG3 | ACTIVE | -40 to 85 | 2.90 | 1ku | DDPAK/TO-263 (KTT) | 5 | 50 | SMALL T&R | |
| REG104GA-A | ACTIVE | -40 to 85 | 2.60 | 1ku | SOT-223 (DCQ) | 6 | 78 | TUBE | |
| REG104GA-A/2K5 | ACTIVE | -40 to 85 | 2.35 | 1ku | SOT-223 (DCQ) | 6 | 2500 | LARGE T&R | |
| REG104GA-A/2K5G4 | ACTIVE | -40 to 85 | 2.35 | 1ku | SOT-223 (DCQ) | 6 | 2500 | LARGE T&R | |
| REG104GA-AG4 | ACTIVE | -40 to 85 | 2.60 | 1ku | SOT-223 (DCQ) | 6 | 78 | TUBE |