LTM2883 ELECTRICALCHARACTERISTICS The l denotes the specifications which apply over the full operatingtemperature range, otherwise specifications are at TA = 25°C. LTM2883-3 VCC = 3.3V, LTM2883-5 VCC = 5V, VL = 3.3V, and GND =GND2 = 0V, ON = VL unless otherwise noted. Specifications apply to all options unless otherwise noted. SYMBOL PARAMETERCONDITIONSMINTYPMAXUNITSOutput Supplies VCC2 Regulated Output Voltage No Load l 4.75 5 5.25 V Output Voltage Operating Range (Note 2) 3 5.5 V Line Regulation ILOAD = 1mA, MIN ≤ VCC ≤ MAX l 25 100 mV Load Regulation ILOAD = 100µA to 20mA l 8 80 mV ADJ Pin Voltage ILOAD = 100µA to 20mA l 585 600 615 mV Voltage Ripple ILOAD = 20mA (Note 2) 1 mVRMS Efficiency ILOAD = 20mA (Note 2) 45 % ICC2 Output Short Circuit Current VCC2 = 0V 45 mA Current Limit ΔVCC2 = –5% l 20 mA V+ Regulated Output Voltage No Load l 12 12.5 13 V Line Regulation ILOAD = 1mA, MIN ≤ VCC ≤ MAX l 5 30 mV Load Regulation ILOAD = 100µA to 20mA l 200 mV ADJ Pin Voltage ILOAD = 100µA to 20mA l 1.170 1.220 1.260 mV Voltage Ripple ILOAD = 20mA (Note 2) 3 mVRMS Efficiency ILOAD = 20mA (Note 2) 45 % I+ Output Short Circuit Current V+ = 0V 70 mA Current Limit ΔV+ = –0.5V l 20 mA V– Regulated Output Voltage No Load l –12 –12.5 –13 V Line Regulation ILOAD = –1mA, MIN ≤ VCC ≤ MAX l 4 15 mV Load Regulation ILOAD = 100µA to 15mA, V+LOAD = 1.5mA 35 mV ADJ Pin Voltage ILOAD = 100µA to 15mA, V+LOAD = 1.5mA l –1.184 –1.220 –1.256 mV Voltage Ripple ILOAD = 15mA, V+LOAD = 1.5mA (Note 2) 2 mVRMS Efficiency ILOAD = 15mA (Note 2) 45 % I– Output Short-Circuit Current V– = 0V 30 mA Current Limit ΔV– = 0.5V, V+ = 1.5mA l 10 15 mA Logic/SPI VITH Input Threshold Voltage ON, DI1, SDOE, SCK, SDI, CS 1.62V ≤ VL < 2.35V l 0.25 • VL 0.75 • VL V ON, DI1, SDOE, SCK, SDI, CS 2.35V ≤ VL l 0.33 • VL 0.67 • VL V I1, I2, SDO2 l 0.33 • VCC2 0.67 • VCC2 V IINL Input Current l ±1 µA VHYS Input Hysteresis (Note 2) 150 mV VOH Output High Voltage DO1, DO2, SDO l VL – 0.4 V ILOAD = –1mA, 1.62V ≤ VL < 3V ILOAD = –4mA, 3V ≤ VL ≤ 5.5V O1, SCK2, SDI2, CS2, ILOAD = –4mA l VCC2 – 0.4 V VOL Output Low Voltage DO1, DO2, SDO l 0.4 V ILOAD = 1mA, 1.62V ≤ VL < 3V ILOAD = 4mA, 3V ≤ VL ≤ 5.5V O1, SCK2, SDI2, CS2, ILOAD = 4mA l 0.4 V ISC Short-Circuit Current 0V ≤ (DO1, DO2, SDO) ≤ VL l ±85 mA 0V ≤ (O1, SCK2, SDI2, CS2) ≤ VCC2 ±60 mA 2883fd 4 For more information www.linear.com/LTM2883 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Switching Characteristics Isolation Characteristics Typical Performance Characteristics Pin Functions Block Diagram Test Circuits Applications Information Package Description Typical Application Related Parts
