IP1R07A IP3R07A IP1R07A IP3R07A SEME LAB 1 2 1 2 3 4 5 4 3 5 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 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: 1 2 3 1 2 3 4 5 • 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 T Package – TO–220 G Package – TO–257 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. ABSOLUTE MAXIMUM RATINGS (Tcase = 25°C unless otherwise stated) Control Input to Output Voltage 35V Power Input to Output Voltage 15V PD Power Dissipation TJ Operating Junction Temperature Range TSTG Storage Temperature TL Lead Temperature (Soldering, 10 sec.) Semelab plc. Telephone (01455) 556565. Telex: 341927. Fax (01455) 552612. Internally limited See Order Information Table –65 to +150°C +300°C Prelim. 4/96 IP1R07A IP3R07A IP1R07A IP3R07A SEME LAB BLOCK DIAGRAM CONTROL INPUT BIAS POWER INPUT THERMAL SHUTDOWN VOLTAGE REFERENCE INTERNAL PASS TRANSISTOR AV CURRENT LIMIT CURRENT LIMIT SENSE RESISTOR OUTPUT ADJUST TYPICAL APPLICATION IP3R07A 6V 3A VP 10V 50mA VC 5V 3A VOUT 1µF ADJ R1 121Ω 1µF ** V O 1µF 10µF * R2 360Ω 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) ✔ ✔ ✔ ✔ Semelab plc. G–Pack (TO–257) ✔ ✔ T–Pack (TO–220) ✔ ✔ V–Pack (TO–218) ✔ ✔ Temp. Range -55 to +150°C ” 0 to 125°C ” Telephone (01455) 556565. Telex: 341927. Fax (01455) 552612. Note: To order, add the package identifier to the part number. eg. IP1R07AK Prelim. 4/96 IP1R07A IP3R07A IP1R07A IP3R07A SEME LAB Parameter Test Conditions 2 IP1R07A IP3R07A Min. Typ. Max. IO = 10mA 1.238 1.250 1.262 1.225 1.250 1.270 0.005 IP1R07 IP3R07 Min. Typ. Max. Units V 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) TJ = Over Temp. Range 1 TJ = Over Temp. Range 1 IO = 10mA to 3A tp = 20ms f = 120Hz 1.25 1.30 0.010 0.005 0.030 0.020 0.050 0.020 0.070 0.10 0.30 0.10 0.50 0.30 1.0 0.30 1.5 0.002 0.010 0.002 0.030 V TJ = Over Temp. Range 1 VC – VO = 3V to 35V VO = 10V 1.20 CADJ = 0 65 CADJ = 10µF TJ = Over Temp. Range 1 66 86 66 %/V % %/W 65 dB 86 dB ∆VO = 50mV 0.8 1.0 0.8 1.0 V TJ = Over Temp. Range 1 50 100 50 100 µA 0.2 5 0.2 5 µA 3.5 5 3.5 10 mA IADJ Adjust Pin Current ∆IADJ Adjust Pin Current VP – VO = 1.5V to 7V Change VC – VO = 3V to 35V IO = 10mA to 3A TJ = Over Temp. Range 1 IMIN Minimum Load VC – VO = 35V Current TJ = Over Temp. Range 1 VP – VO ≤ 7V ICL Current Limit K Package Power Transistor 1.2 1.2 RθJC Thermal Resistance V Package Control Circuitry 0.5 0.5 Junction to Case T Package Power Transistor 2.3 2.3 G Package Control Circuitry 0.7 0.7 3 TJ = Over Temp. Range 1 4.5 3 4.5 A °C/W Notes 1) Applies over full temperature range :– TJ = –55 to +150°C for IP1R07A / IP1R07 TJ = 0 to +125°C for IP3R07A / IP3R07 All other specifications apply at TJ = 25°C 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