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| LAB 1 2 SEME IP1R07A IP3R07A IP1R07A IP3R07A 12345 4 3 5 3 AMP LOW DROPOUT POSITIVE ADJUSTABLE VOLTAGE REGULATOR FEATURES * 1% OUTPUT VOLTAGE TOLERANCE (-A VERSIONS) * 0.3% LOAD REGULATION * 0.01% / V LINE REGULATION * 0.8V DROPOUT VOLTAGE AT 3A * COMPLETE SERIES OF PROTECTIONS: Pin 1 - VP Pin 2 - VC Pin 3 - N/C Pin 4 - ADJ. Case - VO Pin 1 - VC Pin 2 - N/C Pin 3 - VO Pin 4 - VP Pin 5 - ADJ. K Package - TO-3 V Package - TO-218 12345 123 * CURRENT LIMITING * THERMAL SHUTDOWN * SOA CONTROL Pin 1 - VC Pin 2 - N/C Pin 3 - VO Pin 4 - VP Case - ADJ. Pin 1 - VC Pin 2 - VP Pin 3 - ADJ. Case - VO Description The IP3R07A series of low dropout adjustable voltage regulators are capable of supplying 3A of output current with an input-to-output voltage of just 0.8V. In applications where high efficiency is necessary it is now possible to obtain a low cost, single chip solution. These regulators are exceptionally easy to use, requiring only two external resistors to set the output voltage. The IP3R07A exhibits an initial 1% output voltage tolerance, and over all operating conditions the reference voltage is guaranteed not to vary more than 2%. These devices include internal current limiting, thermal overload protection, and power device safe operating area compensation. T Package - TO-220 G Package - TO-257 ABSOLUTE MAXIMUM RATINGS (Tcase = 25C unless otherwise stated) Control Input to Output Voltage Power Input to Output Voltage PD TJ TSTG TL Power Dissipation Operating Junction Temperature Range Storage Temperature Lead Temperature (Soldering, 10 sec.) Telephone (01455) 556565. Telex: 341927. Fax (01455) 552612. 35V 15V Internally limited See Order Information Table -65 to +150C +300C Prelim. 4/96 Semelab plc. LAB BLOCK DIAGRAM BIAS CONTROL INPUT THERMAL SHUTDOWN VOLTAGE REFERENCE AV CURRENT LIMIT POWER INPUT INTERNAL PASS TRANSISTOR CURRENT LIMIT SENSE RESISTOR OUTPUT ADJUST SEME IP1R07A IP3R07A IP1R07A IP3R07A TYPICAL APPLICATION IP3R07A 6V 3A 10V 50mA 1F 1F 10F * R2 360 VP VOUT VC 5V 3A R1 121 1F ** V O ADJ GND * Improves Ripple Rejection. ** Improves Transient Response. R2 NOTE: VO = 1.25V 1 + R1 Order Information Part Number IP1R07A IP1R07 IP3R07A IP3R07 K-Pack (TO-3) G-Pack (TO-257) T-Pack (TO-220) V-Pack (TO-218) Temp. Range -55 to +150C " 0 to 125C " Note: To order, add the package identifier to the part number. eg. IP1R07AK Semelab plc. Telephone (01455) 556565. Telex: 341927. Fax (01455) 552612. Prelim. 4/96 LAB Parameter Test Conditions 2 IO = 10mA IO = 10mA to 3A VREF Reference Voltage VC - VO = 3V to 35V VP - VO = 1.5V to 7V P 20W VOUT IOUT VOUT IOUT Line Regulation 1 Load Regulation 1 Thermal Regulation Ripple Rejection Dropout Voltage (Power Input) IADJ IADJ Adjust Pin Current Adjust Pin Current Change IMIN Minimum Load Current ICL Current Limit TJ = Over Temp. Range 1 0.005 1 SEME IP1R07A IP3R07A IP1R07A IP3R07A IP1R07A IP3R07A Min. Typ. Max. 1.238 1.250 1.262 IP1R07 IP3R07 Min. Typ. Max. Units V 1.225 1.250 1.270 1.20 1.25 1.30 V VC - VO = 3V to 35V TJ = Over Temp. Range IO = 10mA to 3A TJ = Over Temp. Range tp = 20ms VO = 10V f = 120Hz VO = 50mV TJ = Over Temp. Range 1 IO = 10mA to 3A VP - VO = 1.5V to 7V VC - VO = 3V to 35V TJ = Over Temp. Range 1 VC - VO = 35V TJ = Over Temp. Range 1 VP - VO 7V TJ = Over Temp. Range 1 K Package Power Transistor Control Circuitry Power Transistor Control Circuitry V Package T Package G Package 3 CADJ = 0 CADJ = 10F TJ = Over Temp. Range 1 66 1 0.010 0.050 0.30 1.0 0.010 0.005 0.020 0.10 0.30 0.002 65 66 86 0.8 50 0.030 0.070 0.50 1.5 0.030 0.020 0.10 0.30 0.002 65 86 0.8 50 %/V % %/W dB dB 1.0 100 1.0 100 V A 0.2 5 0.2 5 A 3.5 4.5 1.2 0.5 2.3 0.7 5 3 3.5 4.5 1.2 0.5 2.3 0.7 10 mA A RJC Thermal Resistance Junction to Case C/W Notes 1) Applies over full temperature range :- TJ = -55 to +150C for IP1R07A / IP1R07 TJ = 0 to +125C for IP3R07A / IP3R07 All other specifications apply at TJ = 25C unless otherwise stated. 2) Test conditions unless otherwise stated :- VC - VO = 5V , VP - VO = 3V , IOUT = 3A. Although Power Dissipation is internally limited, these specifications apply for Power Dissipation up to 50W. 3) Load and Line regulation are electrically independent and are measured using pulse techniques at low duty cycle in order to maintain constant junction temperature. To determine the effects on the output voltage due to device heating, refer to thermal regulation specification. Semelab plc. Telephone (01455) 556565. Telex: 341927. Fax (01455) 552612. Prelim. 4/96 |
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