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S-1172B44-U5T1G Datasheet(PDF) 9 Page - Seiko Instruments Inc |
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S-1172B44-U5T1G Datasheet(HTML) 9 Page - Seiko Instruments Inc |
9 / 34 page HIGH RIPPLE-REJECTION LOW DROPOUT HIGH OUTPUT CURRENT CMOS VOLTAGE REGULATOR Rev.1.1_00 S-1172 Series Seiko Instruments Inc. 9 Table 7 (2 / 2) (Ta = 25°C unless otherwise specified) Parameter Symbol Conditions Min. Typ. Max. Unit Test Circuit VIN = VOUT(S) + 1.0 V, RL = 1.0 k Ω, determined by VOUT output level 1.0 V ≤ VOUT(S) ≤ 4.5 V 1.0 − − V 4 Shutdown pin input voltage “H” VSH VIN = 5.5 V, RL = 1.0 k Ω, determined by VOUT output level 4.5 V < VOUT(S) ≤ 5.0 V 1.0 − − V 4 VIN = VOUT(S) + 1.0 V, RL = 1.0 k Ω, determined by VOUT output level 1.0 V ≤ VOUT(S) ≤ 4.5 V − − 0.3 V 4 Shutdown pin input voltage “L” VSL VIN = 5.5 V, RL = 1.0 k Ω, determined by VOUT output level 4.5 V < VOUT(S) ≤ 5.0 V − − 0.3 V 4 Shutdown pin input current “H” ISH VIN = 5.5 V, VON/OFF = 5.5 V −0.1 − 0.1 µA 4 Shutdown pin input current “L” ISL VIN = 5.5 V, VON/OFF = 0 V −0.1 − 0.1 µA 4 1.0 V ≤ VOUT(S) < 1.2 V − 70 − dB 5 1.2 V ≤ VOUT(S) ≤ 3.0 V − 65 − dB 5 VIN = VOUT(S) + 1.0 V, f = 1 kHz, ∆Vrip = 0.5 Vrms, IOUT = 100 mA 3.0 V < VOUT(S) ≤ 4.5 V − 60 − dB 5 Ripple rejection RR VIN = 5.5 V, f = 1 kHz, ∆Vrip = 0.5 Vrms, IOUT = 100 mA 4.5 V < VOUT(S) ≤ 5.0 V − 60 − dB 5 VIN = VOUT(S) + 1.0 V, ON/OFF pin = ON, VOUT = 0 V 1.0 V ≤ VOUT(S) ≤ 4.5 V − 200 − mA 3 Short-circuit current ISHORT VIN = 5.5 V, ON/OFF pin = ON, VOUT = 0 V 4.5 V < VOUT(S) ≤ 5.0 V − 200 − mA 3 Thermal shutdown detection temperature TSD Junction temperature − 150 − °C − Thermal shutdown release temperature TSR Junction temperature − 120 − °C − *1. VOUT(S) : Specified output voltage VOUT(E) : Actual output voltage The output voltage when fixing IOUT ( = 100 mA) and inputting VOUT(S) + 1.0 V or 5.5 V *2. The output current at which the output voltage becomes 95% of VOUT(E) after gradually increasing the output current. *3. Vdrop = VIN1 − (VOUT3 × 0.98) VOUT3 is the output voltage when VIN = VOUT(S) + 1.0 V or 5.5 V, and IOUT = 300 mA or 1000 mA. VIN1 is the input voltage at which the output voltage becomes 98% of VOUT3 after gradually decreasing the input voltage. *4. The change in temperature [mV/°C] is calculated using the following equation. [] [ ] [] 1000 C ppm/ V ∆Ta ∆V V V C mV/ ∆Ta ∆V OUT OUT OUT(S) OUT ÷ ° • × = ° *3 *2 *1 *1. Change in temperature of the output voltage *2. Specified output voltage *3. Output voltage temperature coefficient *5. The output current can be at least this value. Due to limitation of the package power dissipation, this value may not be satisfied. Attention should be paid to the power dissipation of the package when the output current is large. This specification is guaranteed by design. *1 *2 *3 |
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