LTC1046 Inductorless 5V to 5V Converter FEATURES DESCRIPTION n 50mA Output Current The LTC 1046 is a 50mA monolithic CMOS switched n Plug-In Compatible with ICL7660/LTC1044 capacitor voltage converter. It plugs in for the ICL7660/ n R = 35 Maximum LTC1044 in 5V applications where more output current OUT n 300A Maximum No Load Supply Current at 5V is needed. The device is optimized to provide high cur- n Boost Pin (Pin 1) for Higher Switching Frequency rent capability for input voltages of 6V or less. It trades n 97% Minimum Open-Circuit Voltage Conversion off operating voltage to get higher output current. The Efficiency LTC1046 provides several voltage conversion functions: n 95% Minimum Power Conversion Efficiency the input voltage can be inverted (V = V ), divided OUT IN n Wide Operating Supply Voltage Range: 1.5V to 6V (V = V 2) or multiplied (V = nV ). OUT IN/ OUT IN n Easy to Use Designed to be pin-for-pin and functionally compatible n Low Cost with the ICL7660 and LTC1044, the LTC1046 provides 2.5 times the output drive capability. APPLICATIONS All registered trademarks and trademarks are the property of their respective owners. n Conversion of 5V to 5V Supplies n Precise Voltage Division, V = V /2 OUT IN n Supply Splitter, V = V /2 OUT S TYPICAL APPLICATION + Output Voltage vs Load Current for V = 5V Generating 5V from 5V 5 T = 25C A LTC1046 4 1 8 + 5V INPUT BOOST V ICL7660/LTC1044, 2 7 + R = 55 CAP OSC OUT + 3 3 6 GND LV 10F LTC1046, 4 5 R = 27 CAP V 5V OUTPUT OUT OUT 2 10F 1 1046 TA01 0 0 10 20 30 40 50 LOAD CURRENT, I (mA) L 1046 TA02 Rev. C 1 Document Feedback For more information www.analog.com OUTPUT VOLTAGE (V) +LTC1046 ABSOLUTE MAXIMUM RATINGS (Note 1) Supply Voltage .........................................................6.5V Operating Temperature Range Input Voltage on Pins 1, 6 and 7 LTC1046C ........................................0C T 70C A + (Note 2) .................................0.3 < V < (V ) +0.3V LTC1046I .....................................40C T 85C IN A Current into Pin 6 ....................................................20A LTC1046M (OBSOLETE) ................. 55C to 125C Output Short Circuit Duration Storage Temperature Range ................... 65C to 150C + (V 6V) ...................................................Continuous Lead Temperature (Soldering, 10 sec.) ................. 300C PIN CONFIGURATION TOP VIEW + TOP VIEW TOP VIEW BOOST 1 8 V + + + CAP 2 7 OSC BOOST 1 8 V BOOST 1 8 V + + GND 3 6 LV CAP 2 7 OSC CAP 2 7 OSC GND LV GND LV CAP 4 5 V 3 6 3 6 OUT CAP 4 5 V CAP 4 5 V OUT OUT J8 PACKAGE 8-LEAD CERDIP N8 PACKAGE S8 PACKAGE T = 160C, = 100C JMAX JA 8-LEAD PDIP 8-LEAD PLASTIC SO T = 110C, = 130C (N8) T = 150C, = 150C JMAX JA JMAX JA OBSOLETE PACKAGE Consider the N8 or S8 for Alternate Source ORDER INFORMATION LEAD FREE FINISH TAPE AND REEL PART MARKING PACKAGE DESCRIPTION TEMPERATURE RANGE LTC1046CN8 PBF LTC1046CN8 TRPBF 8-Lead PDIP 0C to 70C LTC1046IN8 PBF LTC1046IN8 TRPBF 8-Lead PDIP 40C to 85C OBSOLETE PACKAGE LTC1046MJ8 PBF LTC1046MJ8 TRPBF 8-Lead CERDIP 55C to 125C LTC1046CS8 PBF LTC1046CS8 TRPBF 1046 8-Lead Plastic SO 0C to 70C LTC1046IS8 PBF LTC1046IS8 TRPBF 1046I 8-Lead Plastic SO 40C to 85C Contact the factory for parts specified with wider operating temperature ranges. Tape and reel specifications. Some packages are available in 500 unit reels through designated sales channels with TRMPBF suffix. Rev. C 2 For more information www.analog.com