CJ7812 TO-263-3L CJ7812 Three-terminal positive voltage regulator 1.IN FEATURES Maximum Output current IOM: 1.5 A Output voltage Vo: 12 V Continuous total dissipation PD: 1.5 W (Ta = 25 ℃) 15 W (TC= 25 ℃) 2.GND 3.OUT 1 2 3 ABSOLUTE MAXIMUM RATINGS (Operating temperature range applies unless otherwise specified) Parameter Symbol Value Unit Input Voltage Vi 35 V Thermal Resistance from Junction to Air RθJA ℃/W Thermal Resistance from Junction to Case RθJC ℃/W Operating Junction Temperature Range TOPR 0-150 ℃ TSTG -65-150 ℃ Storage Temperature Range ELECTRICAL CHARACTERISTICS AT SPECIFIED VIRTUAL JINCTION TEMPERATURE (Vi=19V, Io=500mA,Ci=0.33μF, Co=0.1μF, unless otherwise specified ) Parameter Output Voltage Symbol Vo Test conditions Io= 5.0mA-1.0A, P≤15W 14.5V≤ Vi ≤27V Load Regulation Line Regulation Quiescent Current ∆Vo ∆Vo 14.5V≤ Vi ≤30V Min Typ Max Unit 25℃ 11.5 12.0 12.5 V 0-125℃ 11.4 12 12.6 V 10 240 mV 25℃ 16V≤Vi≤22V 25℃ 3 120 mV IO=5mA - 1.5A 25℃ 12 240 mV IO=250mA - 750mA 25℃ 4 120 mV 25℃ 4.3 8 mA 0.5 mA Iq 5.0mA≤ IO ≤1.0A 0-125℃ 14.5V ≤Vi≤ 30V 0-125℃ Quiescent Current Change ∆Iq Output Voltage Drift △Vo/△T IO=5mA f =10Hz to 100KHz 1.0 mA 0-125℃ -1 mV/℃ 25℃ 75 μV 71 dB Output Noise Voltage VN Ripple Rejection RR f =120Hz, 15V≤ Vi ≤25V Dropout Voltage Vd IO=1.0A 25℃ 2 V Output Resistance RO f = 1KHz 25℃ 18 mΩ 0-125℃ 55 Short Circuit Current Isc 25℃ 350 mA Peak Current Ipk 25℃ 2.2 A TYPICAL APPLICATION Vi 1 3 Vo UTC CJ7812 Ci 0.33μF [email protected] Co 0.1μF www.zpsemi.com 1 of 2 CJ7812 Dropout Characteristics Output Characteristics 14 14 (V) 12 I O VO =0 m A 10 8 OUTPUT VOLTAGE OUTPUT VOLTAGE VO (V) 12 6 4 IO=0mA 2 IO=250mA、500mA、750mA、1A、1.5A 10 8 TJ=25℃ TJ=25℃ 0 6 0 6 12 18 INPUT VOLTAGE VIN 24 30 9 12 15 INPUT VOLTAGE (V) 18 VIN 21 (V) Quiescent Current vs Output Current Quiescent Current vs Input Voltage 5.0 5 Vin=19V TJ=25℃ (mA) 4.5 4.0 QUIESCENT CURRENT IQ IQ (mA) 4 QUIESCENT CURRENT 3 2 1 IO=0mA 3.5 3.0 2.5 2.0 TJ=25℃ 0 0 5 10 15 20 INPUT VOLTAGE VIN 25 30 1.5 0.0 35 0.3 0.6 0.9 OUTPUT CURRENT (V) Output Voltage vs Ambient Temperature 1.2 IO Current Cut-off Grid Voltage 15 15 Vin=19V (V) 13 12 OUTPUT VOLTAGE 13 VO Pulsed (V) VIN=19V 14 IO=500mA 14 OUTPUT VOLTAGE VO 1.5 (A) 12 11 10 9 TJ=25℃ 11 10 9 8 7 8 -25 0 25 50 AMBIENT TEMPERATURE 75 Ta 100 125 6 0.0 (℃ ) 0.5 1.0 1.5 OUTPUT CURRENT 2.0 IO 2.5 (A) Power Derating Curve 1.5 POWER DISSIPATION PD (W) 2.0 1.0 0.5 0.0 0 25 50 75 AMBIENT TEMPERATURE [email protected] 100 TJ 125 150 (℃ ) www.zpsemi.com 2 of 2