LESHAN RADIO COMPANY, LTD. LR432AALT1G LINEAR INTEGRATED CIRCUIT 352*5$00$%/(35(&,6,21 5()(5(1&( Description The LRC LR432AALT1G is a three-terminal adjustable regulator with a guaranteed thermal stability over applicable temperature ranges.The output voltage may be set to any value between VREF (approximately 1.24V) and 18V with two external resistors. It provides very wide applications,including shunt regulator,series regulator,switching regulator,voltage reference and others. LR432AALT1G SOT-23 SOT-23 1: Ref; 2: Cathode; 3: Anode Features: • Precise Reference Voltage to 1.24V • Guaranteed 0.5% Reference Voltage Tolerance • Sink Current Capability, 80µA to100mA • Quick Turn-on • Adjustable Output Voltage, Vo=VREF to 18V • 0.2 Ω Typical Output Impedance • Marking:EA We declare that the material of product is ROHS compliant and does not contain any B r, Cl, and Sb203 Ordering Information Device Marking Shipping LR432AALT1G EA 3000/Tape & Reel LR432AALT3G EA 10000/Tape & Reel 1/4 LESHAN RADIO COMPANY, LTD. LR432AALT1G LINEAR INTEGRATED CIRCUIT Absolute Maximum Ratings Symbol VKA IK I REF Tj Topr Parameter Cathode voltage Continuous cathode current range Reference current range Operating Junction Temperature Range Operating Ambient Temperature Electrical Characteristics Symbol TA= 25°C Reference voltage VDEV VREF Temp Deviation ∆VREF/∆VKA Ratio of Change in VREF to Change in Cathode Voltage IREF Reference Input Current IREF(DEV) IREF Temp Deviation Ik(off) Off-state cathode current IK(MIN) Unit V mA mA °C °C ( unless otherwise noted) Parameter VREF Zka Rating 18 100 3 150 - 40 to 105 Dynamic Output Impedance Minimum Operating Current Test Conditions VKA=VREF, lK=10mA (Fig. 1) TA =25°C TA=full range(see Note1) VKA=VREF, lK=10mA(Fig. 1) !K=10mA, VKA=18V to VREF (Fig. 2) IK=10mA, R1 =10kΩ R2=∞ (Fig.2) TK=full range (see Note 1), R1 =10kΩ, R2=∞, IK=10mA (Fig. 2) VREF=0 V,(Fig.3) Vk=18V Vka=Vref, Ik=1mA to 100mA F ≤1kHz (Fig. 1) VKA=VREF(Fig. 1) LR432AALT1G Min 1.233 Typ 1.240 Unit Max 1.246 V 10 25 mV -1 -2.7 mV / V 0.25 0.5 µA 0.05 0.3 µA 0.04 0.5 µA 0.2 0.4 Ω 60 80 µA 2/4 LESHAN RADIO COMPANY, LTD. LR432AALT1G LINEAR INTEGRATED CIRCUIT Fig.1 Test Circuit for Vka=Vref, Vo=Vka=Vref, Co=0.1µF Fig.2 Test Circuit for Vka>Vref, Vo=Vka=Vref·(1+R1/R2)+Iref·R1, Co=0.1µF Fig.3 Test Circuit for Ik(off) 3/4 LESHAN RADIO COMPANY, LTD. LR432AALT1G LINEAR INTEGRATED CIRCUIT SOT-23 NOTES: 1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M,1982 2. CONTROLLING DIMENSION: INCH. A L 3 1 V 2 DIM B S G C D H K J MIN 0.1102 0.0472 0.0350 0.0150 0.0701 0.0005 0.0034 0.0140 0.0350 0.0830 0.0177 A B C D G H J K L S V INCHES MAX 0.1197 0.0551 0.0440 0.0200 0.0807 0.0040 0.0070 0.0285 0.0401 0.1039 0.0236 MILLIMETERS MIN MAX 2.80 3.04 1.20 1.40 0.89 1.11 0.37 0.50 1.78 2.04 0.013 0.100 0.085 0.177 0.35 0.69 0.89 1.02 2.10 2.64 0.45 0.60 0.037 0.95 0.037 0.95 0.079 2.0 0.035 0.9 0.031 0.8 inches mm 4/4