ANALOG DEVICES LT1963EFE-3.3#PBF LDO Voltage Regulator, Fixed, 2.1 to 20V in, 340 mV Drop, 3.3V/1.5A Out, TSSOP-EP-16, -40 to 125 °C

LT1963EFE-3.3#PBF is a LT ®1963 series, low dropout regulator optimized for a fast transient response. This device is capable of supplying 1.5A of output current with a dropout voltage of 340mV. The operating quiescent current is 1mA, dropping to <1µA in shutdown. Quiescent current is well controlled; it does not rise in dropout as it does with many other regulators. In addition to fast transient response, the LT1963 regulator has very low output noise which makes it ideal for sensitive RF supply applications. Internal protection circuitry includes reverse battery protection, current limiting, thermal limiting and reverse current protection. Applications include 3.3V to 2.5V logic power supplies, post regulator for switching supplies.

• Optimized for fast transient response, no protection diodes needed
• Controlled quiescent current in dropout, stable with 10µF output capacitor
• Reverse battery protection, thermal limiting, no reverse current
• Output voltage noise is 40µVRMS typical at (COUT = 10µF, ILOAD = 1.5A, BW = 10Hz to 100KHz)
• Quiescent current in shutdown is 0.01µA typical at (VIN = 6V, active-low VSHDN = 0V, TA = 25°C)
• Ripple rejection is 63dB typical at (VIN � VOUT = 1.5V (avg), VRIPPLE = 0.5VP-P)
• Current limit is 2A typical at (VIN = 7V, VOUT = 0V, TA = 25°C)
• GND pin current is 1mA typical at (ILOAD = 0mA)
• 3.3V regulated output voltage at (VIN = 3.8V, ILOAD = 1mA, TA = 25°C)
• Operating junction temperature range from -40°C to 125°C, 16-lead plastic TSSOP package

Notes

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