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TPS77028

Texas Instruments
Part Number TPS77028
Manufacturer Texas Instruments
Description Ultra Low-Power 50-mA Low-Dropout Linear Regulators
Published Jun 9, 2022
Detailed Description TPS77001, TPS77012, TPS77015, TPS77018, TPS77025 TPS77027, TPS77028, TPS77030, TPS77033, TPS77050 ULTRALOW-POWER 50-mA L...
Datasheet PDF File TPS77028 PDF File

TPS77028
TPS77028

Overview
TPS77001, TPS77012, TPS77015, TPS77018, TPS77025 TPS77027, TPS77028, TPS77030, TPS77033, TPS77050 ULTRALOW-POWER 50-mA LOW-DROPOUT LINEAR REGULATORS SLVS210D – JUNE 1999 – REVISED MAY 2001 D 50-mA Low-Dropout Regulator D Available in 1.
2-V, 1.
5-V, 1.
8-V, 2.
5-V, 2.
7-V, 2.
8-V, 3.
0-V, 3.
3-V, and 5-V Fixed-Output and Adjustable Versions D Only 17 µA Quiescent Current at 50 mA D 1 µA Quiescent Current in Standby Mode D Dropout Voltage Typically 35 mV at 50 mA D Over Current Limitation D –40°C to 125°C Operating Junction Temperature Range D 5-Pin SOT-23 (DBV) Package description The TPS770xx family of low-dropout (LDO) voltage regulators offers the benefits of low dropout voltage, ultralow-power operation, and miniaturized packaging.
These regulators feature low dropout voltages and ultralow quiescent current compared to conventional LDO regulators.
Offered in a 5-terminal small outline integrated-circuit SOT-23 package, the TPS770xx series devices are ideal for micropower operations and where board space is at a premium.
Ground Current – µ A DBV PACKAGE (TOP VIEW) IN 1 5 OUT GND 2 EN 3 4 NC/FB TPS77033 GROUND CURRENT vs FREE-AIR TEMPERATURE 22 VI = 4.
3 V 21 CO = 4.
7 µF 20 19 IO = 50 mA IO = 0 mA 18 17 A combination of new circuit design and process 16 innovation has enabled the usual PNP pass transistor to be replaced by a PMOS pass element.
Because the PMOS pass element 15 –60 –40 –20 0 20 40 60 80 100 120 140 behaves as a low-value resistor, the dropout TA – Free-Air Temperature – °C voltage is very low — typically 35 mV at 50 mA of load current (TPS77050) — and is directly proportional to the load current.
Since the PMOS pass element is a voltage-driven device, the quiescent current is ultralow (28 µA maximum) and is stable over the entire range of output load current (0 mA to 50 mA).
Intended for use in portable systems such as laptops and cellular phones, the ultralow-dropout voltage feature and ultralow-power operation result in a si...


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