(China (Mainland))
Product Summary
The REG103GA-3.3 is a kind of low-noise, low-dropout, linear regulator with low ground pin current. Its new DMOS topology provides significant improvement over previous designs, including low-dropout voltage (only 115mV 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. The REG103GA-3.3 is designed for: (1)portable communication devices; (2)battery-powered equipment; (3)personal digital assistants; (4)modems; (5)bar-code scanners; (6)backup power supplies.
Parametrics
REG103GA-3.3 absolute maximum ratings: (1)Supply Input Voltage, VIN: –0.3V to 16V; (2)Enable Input: –0.3V to VIN; (3)Error Flag Output: –0.3V to 6V; (4)Error Flag Current: 2mA; (5)Output Short-Circuit Duration: Indefinite; (6)Operating Temperature Range: –55℃ to +125℃; (7)Storage Temperature Range: –65℃ to +150℃; (8)Junction Temperature: –55℃ to +150℃; (9)Lead Temperature (soldering, 3s, SO-8, SOT, and DDPAK): +240℃.
Features
REG103GA-3.3 features: (1)new DMOS topology: Ultra Low Dropout Voltage: 115mV Typ at 500mA and 3.3V Output; Output Capacitor NOT Required for Stability; (2)fast transient response; (3)very low noise: 33μVrms; (4)high accuracy: ±2% max; (5)high efficiency: IGND = 1mA at IOUT = 500mA; Not Enabled: IGND = 0.5μA; (6)2.5V, 2.7V, 3.0V, 3.3V, 5.0V, and adjustable output versions; (7)foldback current limit; (8)thermal protection; (9)output voltage error indicator; (10)small surface-mount packages: SOT223-5, DDPAK-5, SO-8.
Diagrams
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 REG103GA-3.3 |
Texas Instruments |
Low Dropout (LDO) Regulators DMOS 500mA LDO Reg |
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REG103GA-3.3/2K5 |
Texas Instruments |
Low Dropout (LDO) Regulators DMOS 500mA LDO Reg |
Data Sheet |
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REG103GA-3.3G4 |
Texas Instruments |
Low Dropout (LDO) Regulators DMOS 500mA LDO Reg |
Data Sheet |
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REG103GA-3.3/2K5G4 |
Texas Instruments |
Low Dropout (LDO) Regulators DMOS 500mA LDO Reg |
Data Sheet |
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