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TPS73 Datasheet(PDF) 8 Page - Texas Instruments |
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TPS73 Datasheet(HTML) 8 Page - Texas Instruments |
8 / 45 page TPS7301Q, TPS7325Q, TPS7330Q, TPS7333Q, TPS7348Q, TPS7350Q LOW-DROPOUT VOLTAGE REGULATORS WITH INTEGRATED DELAYED RESET FUNCTION SLVS124F – JUNE 1995 – REVISED JANUARY 1999 8 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 TPS7301Q electrical characteristics at IO = 10 mA, VI = 3.5 V, EN = 0 V, Co = 4.7 µF (CSR† = 1 Ω), FB shorted to OUT at device leads (unless otherwise noted) PARAMETER TEST CONDITIONS‡ TJ MIN TYP MAX UNIT 25 °C 1.182 V Reference voltage (measured at FB) 2.5 V ≤ VI ≤ 10 V, See Note 1 5 mA ≤ IO ≤ 500 mA, –40 °C to 125°C 1.147 1.217 V Reference voltage temperature coefficient –40 °C to 125°C 61 75 ppm/ °C VI =2 4V 50 µA ≤ IO ≤ 150 mA 25 °C 0.7 1 VI = 2.4 V, 50 µA ≤ IO ≤ 150 mA –40 °C to 125°C 1 VI =2 4V 150 mA ≤ IO ≤ 500 mA 25 °C 0.83 1.3 Pass-element series resistance VI = 2.4 V, 150 mA ≤ IO ≤ 500 mA –40 °C to 125°C 1.3 Ω (See Note 2) VI =2 9V 50 µA ≤ IO ≤ 500 mA 25 °C 0.52 0.85 Ω VI = 2.9 V, 50 µA ≤ IO ≤ 500 mA –40 °C to 125°C 0.85 VI = 3.9 V, 50 µA ≤ IO ≤ 500 mA 25 °C 0.32 VI = 5.9 V, 50 µA ≤ IO ≤ 500 mA 25 °C 0.23 Input regulation VI = 2.5 V to 10 V, 50 µA ≤ IO ≤ 500 mA, 25 °C 3 18 mV Input regulation I , See Note 1 µ O , –40 °C to 125°C 25 mV 2.5 V ≤ VI ≤ 10 V, IO = 5 mA to 500 mA, 25 °C 5 14 mV Output regulation I , See Note 1 O , –40 °C to 125°C 25 mV Output regulation 2.5 V ≤ VI ≤ 10 V, IO = 50 µA to 500 mA, 25 °C 7 22 mV I , See Note 1 O µ , –40 °C to 125°C 54 mV IO =50 µA 25 °C 48 59 Ripple rejection f = 120 Hz IO = 50 µA –40 °C to 125°C 44 dB Ripple rejection f = 120 Hz IO = 500 mA, 25 °C 45 54 dB O , See Note 1 –40 °C to 125°C 44 Output noise-spectral density f = 120 Hz 25 °C 2 µV/√Hz Co = 4.7 µF 25 °C 95 Output noise voltage 10 Hz ≤ f ≤ 100 kHz Co = 10 µF 25 °C 89 µVrms Co = 100 µF 25 °C 74 RESET trip-threshold voltage§ VO(FB) decreasing –40 °C to 125°C 1.101 1.145 V RESET hysteresis voltage§ Measured at VO(FB) 25 °C 12 mV RESET output low voltage§ VI = 2 13 V IO(RESET) = 400 µA 25 °C 0.1 0.4 V RESET output low voltage§ VI = 2.13 V, IO(RESET) = 400 µA –40 °C to 125°C 0.4 V FB input current 25 °C –10 0.1 10 nA FB input current –40 °C to 125°C –20 20 nA † CSR refers to the total series resistance, including the ESR of the capacitor, any series resistance added externally, and PWB trace resistance to Co. ‡ Pulse-testing techniques are used to maintain virtual junction temperature as close as possible to ambient temperature; thermal effects must be taken into account separately. § Output voltage programmed to 2.5 V with closed-loop configuration (see application information). NOTES: 1. When VI < 2.9 V and IO > 150 mA simultaneously, pass element rDS(on) increases (see Figure 33) to a point where the resulting dropout voltage prevents the regulator from maintaining the specified tolerance range. 2. To calculate dropout voltage, use equation: VDO = IO ⋅ rDS(on) rDS(on) is a function of both output current and input voltage. This parametric table lists rDS(on) for VI = 2.4 V, 2.9 V, 3.9 V, and 5.9 V, which corresponds to dropout conditions for programmed output voltages of 2.5 V, 3 V, 4 V, and 6 V respectively. For other programmed values, refer to Figure 33. |
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