TL75LP48

低压降 LDO PnP 稳压器

The TL75LPxxQ devices are low-dropout voltage regulators specifically targeted for use in portable applications. These devices generate fixed output voltages at loads of up to 300 mA with only 400-mV dropout over the full temperature range.

Low-dropout voltage regulators are commonly used in battery-powered systems such as analog and digital cellular phones. The TL75LPxx family of regulators feature a TTL/CMOS-compatible enable terminal, which can be used to switch the device into standby mode. This feature reduces power consumption when the instrument is not active. Less that 150 uA is required when the unit is disabled.

A concern in many new designs is conservation of board space and overall reduction in equipment size. The thin shrink small-outline package TSSOP minimizes board area and reduces component height. This package has a maximum height of less than 1.1 mm compared to the 1.75 mm of a standard 8-pin SO package and dimensions of only 6.5 mm by 4.4 mm.

All low-dropout regulators require an external capacitor at the output to maintain regulation and stability. To further reduce board area and cost, the TL75LPxx devices are designed to require a minimum capacitor of only 10 uF. This is 1/10 the typical value used by many other low-dropout regulators. To simplify the task of choosing a suitable capacitor, has included in this datasheet a list of recommended capacitors for use with these devices.

The TL75LPxxQ devices are characterized for operation over TJ = -40°C to 125°C.

.

Very Low-Dropout Voltage . . . Less Than 400 mV at 300 mA

.

Standby Mode Reduces Current to a Maximum of 150 uA

.

Output Regulated to Within ±2% Over Full Temperature Range

.

Packaged in Thin Shrink Small-Outline Package

.

Only 10-uF Load Capacitor Required to Maintain Regulation at IO = 300 mA