Datasheet LT1300 - 8
| Description | Micropower High Efficiency 3.3/5V Step-Up DC/DC Converter |
| Pages / Page | 8 / 8 — TYPICAL APPLICATIONS N. Four-Cell to 5V/3.3V Up-Down Converter. LCD … |
| File Format / Size | PDF / 230 Kb |
| Document Language | English |
TYPICAL APPLICATIONS N. Four-Cell to 5V/3.3V Up-Down Converter. LCD Contrast Supply
Text Version of Document
LT1300
U TYPICAL APPLICATIONS N Four-Cell to 5V/3.3V Up-Down Converter LCD Contrast Supply
C2** CONTRAST L1* 100µF VOUT –4V TO –29V 12mA 2.5V ≤ VIN ≤ 8V 27µH VIN T1 MAXIMUM FROM 1.8V SUPPLY + 1.8V TO 6V (77% EFFICIENT) 4 20mA MAXIMUM FROM 3V SUPPLY (83% EFFICIENT) N/C 7 1 3 L2* I V 22µF 4 LIM IN 1N5817 × 27µH 150K 35V AA 5V/3.3V SELECT SW + 10 8 CELL + C1** 2 100µF LT1300 5V/3.3V 9 SHUTDOWN SHDN SENSE 220mA 1N5819 80% EFFICIENT GND PGND + C3** 100µF V SW IN N/C SENSE SHDN SHUTDOWN + *L1, L2 = GOWANDA GA20-272K 100µF LT1300 COILCRAFT DO3316-273K SUMIDA CD73-270K N/C SELECT ILIM **C1, C2, C3 = SANYO OS-CON 16SA100M LT1300 TA3 PGND GND 12K
Step-Up Converter with Automatic Output Disconnect
+ T1 = DALE LPE-5047-AO45 (605) 665-9301 12K 2.2µF 470Ω PWM IN 0% TO 100% L1* 1N5817 2N4403 CMOS DRIVE 0V TO 5V LT1300 TA6 10µH 5V, 200mA SELECT V + 2× IN 100µF AA SHUTDOWN SHDN SW CELL + 100µF LT1300 NC ILIM SENSE GND PGND 0.1µF *SUMIDA CD54-100LC LT1300 TA5 COILCRAFT DO3316-223
U PACKAGE DESCRIPTION Dimensions in inches (millimeters) unless otherwise noted.
0.400 (10.160) 0.300 – 0.320 0.045 – 0.065 0.130 ± 0.005 MAX (7.620 – 8.128) (1.143 – 1.651) (3.302 ± 0.127) 8 7 6 5
N8 Package
0.065
8-Lead Plastic DIP
0.250 ± 0.010 (1.651) 0.009 – 0.015 TYP (6.350 ± 0.254) (0.229 – 0.381) 0.125 (3.175) 0.020 +0.025 MIN 0.325 0.045 ± 0.015 (0.508) 1 2 3 4 –0.015 MIN (1.143 ± 0.381) +0.635 8.255 ( ) –0.381 0.100 ± 0.010 0.018 ± 0.003 N8 0392 0.189 – 0.197* (2.540 ± 0.254) (0.457 ± 0.076) (4.801 – 5.004) 0.010 – 0.020 8 7 6 5 × 45° 0.053 – 0.069 (0.254 – 0.508) (1.346 – 1.752) 0.004 – 0.010 0.008 – 0.010 0°– 8° TYP (0.101 – 0.254)
S8 Package
(0.203 – 0.254)
8-Lead Plastic S0IC
0.228 – 0.244 0.150 – 0. 0.016 – 0.050 (5.791 – 6.197) (3.810 – 3. 0.014 – 0.019 0.050 0.406 – 1.270 (0.355 – 0.483) (1.270) BSC *THESE DIMENSIONS DO NOT INCLUDE MOLD FLASH OR PROTRUSIONS. MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED 0.006 INCH (0.15mm). 1 2 3 4 SO8 0294 LT/GP 0394 10K • PRINTED IN USA 8 Linear Technology Corporation 1630 McCarthy Blvd., Milpitas, CA 95035-7487 (408) 432-1900 ● FAX: (408) 434-0507 ● TELEX: 499-3977 LINEAR TECHNOLOGY CORPORATION 1994
U TYPICAL APPLICATIONS N Four-Cell to 5V/3.3V Up-Down Converter LCD Contrast Supply
C2** CONTRAST L1* 100µF VOUT –4V TO –29V 12mA 2.5V ≤ VIN ≤ 8V 27µH VIN T1 MAXIMUM FROM 1.8V SUPPLY + 1.8V TO 6V (77% EFFICIENT) 4 20mA MAXIMUM FROM 3V SUPPLY (83% EFFICIENT) N/C 7 1 3 L2* I V 22µF 4 LIM IN 1N5817 × 27µH 150K 35V AA 5V/3.3V SELECT SW + 10 8 CELL + C1** 2 100µF LT1300 5V/3.3V 9 SHUTDOWN SHDN SENSE 220mA 1N5819 80% EFFICIENT GND PGND + C3** 100µF V SW IN N/C SENSE SHDN SHUTDOWN + *L1, L2 = GOWANDA GA20-272K 100µF LT1300 COILCRAFT DO3316-273K SUMIDA CD73-270K N/C SELECT ILIM **C1, C2, C3 = SANYO OS-CON 16SA100M LT1300 TA3 PGND GND 12K
Step-Up Converter with Automatic Output Disconnect
+ T1 = DALE LPE-5047-AO45 (605) 665-9301 12K 2.2µF 470Ω PWM IN 0% TO 100% L1* 1N5817 2N4403 CMOS DRIVE 0V TO 5V LT1300 TA6 10µH 5V, 200mA SELECT V + 2× IN 100µF AA SHUTDOWN SHDN SW CELL + 100µF LT1300 NC ILIM SENSE GND PGND 0.1µF *SUMIDA CD54-100LC LT1300 TA5 COILCRAFT DO3316-223
U PACKAGE DESCRIPTION Dimensions in inches (millimeters) unless otherwise noted.
0.400 (10.160) 0.300 – 0.320 0.045 – 0.065 0.130 ± 0.005 MAX (7.620 – 8.128) (1.143 – 1.651) (3.302 ± 0.127) 8 7 6 5
N8 Package
0.065
8-Lead Plastic DIP
0.250 ± 0.010 (1.651) 0.009 – 0.015 TYP (6.350 ± 0.254) (0.229 – 0.381) 0.125 (3.175) 0.020 +0.025 MIN 0.325 0.045 ± 0.015 (0.508) 1 2 3 4 –0.015 MIN (1.143 ± 0.381) +0.635 8.255 ( ) –0.381 0.100 ± 0.010 0.018 ± 0.003 N8 0392 0.189 – 0.197* (2.540 ± 0.254) (0.457 ± 0.076) (4.801 – 5.004) 0.010 – 0.020 8 7 6 5 × 45° 0.053 – 0.069 (0.254 – 0.508) (1.346 – 1.752) 0.004 – 0.010 0.008 – 0.010 0°– 8° TYP (0.101 – 0.254)
S8 Package
(0.203 – 0.254)
8-Lead Plastic S0IC
0.228 – 0.244 0.150 – 0. 0.016 – 0.050 (5.791 – 6.197) (3.810 – 3. 0.014 – 0.019 0.050 0.406 – 1.270 (0.355 – 0.483) (1.270) BSC *THESE DIMENSIONS DO NOT INCLUDE MOLD FLASH OR PROTRUSIONS. MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED 0.006 INCH (0.15mm). 1 2 3 4 SO8 0294 LT/GP 0394 10K • PRINTED IN USA 8 Linear Technology Corporation 1630 McCarthy Blvd., Milpitas, CA 95035-7487 (408) 432-1900 ● FAX: (408) 434-0507 ● TELEX: 499-3977 LINEAR TECHNOLOGY CORPORATION 1994
