LT1054/LT1054L Switched-Capacitor Voltage Converter with Regulator Features Description Output Current: 100mA (LT1054) The LT 1054 is a monolithic, bipolar, switched-capacitor 125mA (LT1054L) voltage converter and regulator. The LT1054 provides Reference and Error Amplifier for Regulation higher output current than previously available converters Low Loss: 1.1V at 100mA with significantly lower voltage losses. An adaptive switch Operating Range: 3.5V to 15V (LT1054) driver scheme optimizes efficiency over a wide range of 3.5V to 7V (LT1054L) output currents. Total voltage loss at 100mA output current External Shutdown is typically 1.1V. This holds true over the full supply voltage External Oscillator Synchronization range of 3.5V to 15V. Quiescent current is typically 2.5mA. Can Be Paralleled The LT1054 also provides regulation, a feature not previ- Pin Compatible with the LTC 1044/ICL7660 ously available in switched-capacitor voltage converters. By Available in SW16 and SO-8 Packages adding an external resistive divider a regulated output can be obtained. This output will be regulated against changes in both input voltage and output current. The LT1054 can a also be shut down by grounding the feedback pin. Supply Voltage Inverter current in shutdown is less than 100A. Voltage Regulator The internal oscillator of the LT1054 runs at a nominal Negative Voltage Doubler frequency of 25kHz. The oscillator pin can be used to ad- Positive Voltage Doubler just the switching frequency or to externally synchronize L, LT, LTC, LTM, Burst Mode, Linear Technology and the Linear logo are registered trademarks the LT1054. and ThinSOT is a trademark of Linear Technology Corporation. All other trademarks are the property of their respective owners. The LT1054 is pin compatible with previous converters such the LTC1044/ICL7660. Block Diagram V REF V 6 IN LT1054/LT1054 Voltage Loss 8 2 2.5V 3.5V V 15V (LT1054) REFERENCE IN 3.5V V 7V (LT1054L) LT1054L IN R DRIVE C = C = 100F IN OUT INDICATES GUARANTEED + + CAP 2 TEST POINT C * LT1054 IN Q 1 1 OSC Q FEEDBACK/ SHUTDOWN CAP 4 7 R T = 125C J OSC T = 25C J DRIVE DRIVE T = 55C J 3 GND *EXTERNAL CAPACITORS 0 C * 0 25 50 75 100 125 OUT OUTPUT CURRENT (mA) 5 V OUT 1054 TA01 DRIVE LT1054 BD 1954lfh 1 For more information www.linear.com/LT1054 VOLTAGE LOSS (V) + + pplicationsLT1054/LT1054L aB solute m aximum r (Note 1) Supply Voltage (Note 2) Maximum Junction Temperature (Note 3) LT1054 .................................................................16V LT1054C/LT1054LC ......................................... 125C LT1054L .................................................................7V LT1054I ............................................................. 125C Input Voltage LT1054M ........................................................... 150C + Pin 1 ................................................. 0V V V Storage Temperature Range PIN1 + Pin 3 (S Package) ............................. 0V V V J8, N8 and S8 Packages .................... 55C to 150C PIN3 Pin 7 .............................................. 0V V V S Package ......................................... 65C to 150C PIN7 REF Pin 13 (S Package) ...................... 0V V V Lead Temperature (Soldering, 10 sec) .................. 300C PIN13 REF Operating Junction Temperature Range LT1054C/LT1054LC .............................. 0C to 100C LT1054I ............................................. 40C to 100C LT1054M ............................................ 55C to 125C p in c F TOP VIEW TOP VIEW NC 1 16 NC TOP VIEW + FB/SHDN 1 8 V NC 2 15 NC + + + FB/SHDN 1 8 V CAP 2 7 OSC FB/SHDN 3 14 V + + CAP OSC 2 7 CAP 4 13 OSC GND 3 6 V REF GND 3 6 V GND 5 12 V CAP V REF REF 4 5 OUT 6 CAP 11 V CAP 4 5 V OUT OUT S8 PACKAGE 7 NC 10 NC 8-LEAD PLASTIC SO N8 PACKAGE J8 PACKAGE T = 125C, = 120C/W JMAX JA 8 NC 9 NC 8-LEAD PLASTIC DIP 8-LEAD CERAMIC DIP SEE REGULATION AND CAPACITOR SELECTION SECTIONS T = 125C, = 130C/W JMAX JA IN THE APPLICATIONS INFORMATION FOR IMPORTANT SW PACKAGE INFORMATION ON THE S8 DEVICE 16-LEAD PLASTIC SO T = 125C, = 150C/W JMAX JA o r Der i n F LEAD FINISH TAPE AND REEL PART MARKING PACKAGE DESCRIPTION TEMPERATURE RANGE LT1054CN8 PBF LT1054CN8 8-Lead Plastic DIP 0C to 100C LT1054IN8 PBF LT1054IN8 8-Lead Plastic DIP 40C to 100C LT1054MJ8 LT1054MJ8 8-Lead Ceramic DIP 55C to 125C LT1054CS8 PBF LT1054CS8 TRPBF 1054 8-Lead Plastic SO 0C to 100C LT1054LCS8 PBF LT1054LCS8 TRPBF 1054L 8-Lead Plastic SO 0C to 100C LT1054IS8 PBF LT1054IS8 TRPBF 1054I 8-Lead Plastic SO 40C to 100C LT1054CSW PBF LT1054CSW TRPBF LT1054CSW 16-Lead Plastic SO 0C to 100C LT1054ISW PBF LT1054ISW TRPBF LT1054ISW 16-Lead Plastic SO 40C to 100C LT1054CJ8 PBF OBSOLETE PART LT1054CJ8 TRPBF LT1054CJ8 8-Lead Ceramic DIP 0C to 100C Consult LTC Marketing for parts specified with wider operating temperature ranges. Consult LTC Marketing for information on non-standard lead based finish parts. For more information on lead free part marking, go to: