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TPS7250QDRG4 Datasheet(PDF) 1 Page - Texas Instruments |
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TPS7250QDRG4 Datasheet(HTML) 1 Page - Texas Instruments |
1 / 37 page TPS7201Q, TPS7225Q, TPS7230Q TPS7233Q, TPS7248Q, TPS7250Q, TPS72xxY MICROPOWER LOW-DROPOUT (LDO) VOLTAGE REGULATORS SLVS102G – MARCH 1995 – REVISED JUNE 2000 1 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 D Available in 5-V, 4.85-V, 3.3-V, 3.0-V, and 2.5-V Fixed-Output and Adjustable Versions D Dropout Voltage <85 mV Max at IO = 100 mA (TPS7250) D Low Quiescent Current, Independent of Load, 180 µA Typ D 8-Pin SOIC and 8-Pin TSSOP Package D Output Regulated to ±2% Over Full Operating Range for Fixed-Output Versions D Extremely Low Sleep-State Current, 0.5 µA Max D Power-Good (PG) Status Output description The TPS72xx family of low-dropout (LDO) voltage regulators offers the benefits of low-dropout voltage, micropower operation, and miniaturized packaging. These regulators feature extremely low dropout voltages and quiescent currents compared to conventional LDO regulators. Offered in small-outline integrated-circuit (SOIC) packages and 8-terminal thin shrink small-outline (TSSOP), the TPS72xx series devices are ideal for cost-sensitive designs and for designs where board space is at a premium. A combination of new circuit design and process innovation has enabled the usual pnp pass transistor to be replaced by a PMOS device. Because the PMOS pass element behaves as a low-value resistor, the dropout voltage is very low – maximum of 85 mV at 100 mA of load current (TPS7250) – and is directly proportional to the load current (see Figure 1). Since the PMOS pass element is a voltage-driven device, the quiescent current is very low (300 µA maximum) and is stable over the entire range of output load current (0 mA to 250 mA). Intended for use in portable systems such as laptops and cellular phones, the low-dropout voltage and micropower operation result in a significant increase in system battery operating life. The TPS72xx also features a logic-enabled sleep mode to shut down the regulator, reducing quiescent current to 0.5 µA maximum at TJ = 25°C. Other features include a power-good function that reports low output voltage and may be used to implement a power-on reset or a low-battery indicator. The TPS72xx is offered in 2.5-V, 3-V, 3.3-V, 4.85-V, and 5-V fixed-voltage versions and in an adjustable version (programmable over the range of 1.2 V to 9.75 V). Output voltage tolerance is specified as a maximum of 2% over line, load, and temperature ranges (3% for adjustable version). Copyright © 2000, Texas Instruments Incorporated PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. 1 2 3 4 8 7 6 5 SENSE†/FB‡ RESET/PG GND EN OUT OUT IN IN D, P, OR PW PACKAGE (TOP VIEW) † SENSE – Fixed voltage options only (TPS7225, TPS7230, TPS7233, TPS7248, and TPS7250) ‡ FB – Adjustable version only (TPS7201) Figure 1. Typical Dropout Voltage Versus Output Current 200 0 0 50 100 150 400 200 250 100 300 IO – Output Current – mA TPS7233 TPS7248 TPS7250 TA = 25°C TPS7230 TPS7225 500 600 |
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