LT1676 Linear Technology, LT1676 Datasheet - Page 15

• Manufacturer Part Number: LT1676
• Description: Wide Input Range/ High Efficiency/ Step-Down Switching Regulator
• Manufacturer: Linear Technology

TYPICAL APPLICATIONS
PACKAGE
(0.203 – 0.254)
**
0.008 – 0.010
*
DIMENSION DOES NOT INCLUDE MOLD FLASH. MOLD FLASH
SHALL NOT EXCEED 0.006" (0.152mm) PER SIDE
DIMENSION DOES NOT INCLUDE INTERLEAD FLASH. INTERLEAD
FLASH SHALL NOT EXCEED 0.010" (0.254mm) PER SIDE
*THESE DIMENSIONS DO NOT INCLUDE MOLD FLASH OR PROTRUSIONS.
MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED 0.010 INCH (0.254mm)
(7.620 – 8.255)
(0.229 – 0.381)
(0.254 – 0.508)
C1: PANASONIC HFQ 39 F AT 63V
C2: AVX D CASE 100 F 10V
D1: MOTOROLA 100V, 1A,
L1: COILCRAFT DO3316-224
0.300 – 0.325
0.009 – 0.015
DESCRIPTION
0.010 – 0.020
0.325
8.255
TPSD107M010R0080
SMD SCHOTTKY
MBRS1100 (T3)
+0.889
–0.381
+0.035
–0.015
0.016 – 0.050
0.406 – 1.270
45
NC
Figure 8. Burst Mode Operation Configuration with Micropower UVLO
Information furnished by Linear Technology Corporation is believed to be accurate and reliable.
However, no responsibility is assumed for its use. Linear Technology Corporation makes no represen-
tation that the interconnection of its circuits as described herein will not infringe on existing patent rights.
Q2
2N2369
R7
10M
U
(1.651)
0 – 8 TYP
0.065
TYP
Q1
PN2484
U
(2.540 0.254)
0.100 0.010
8-Lead Plastic Small Outline (Narrow 0.150)
4
(1.346 – 1.752)
7S02
0.053 – 0.069
(0.355 – 0.483)
U3
0.014 – 0.019
Dimensions in inches (millimeters) unless otherwise noted.
(1.143 – 1.651)
0.045 – 0.065
+
5
3
8-Lead PDIP (Narrow 0.300)
C1
1
2
(LTC DWG # 05-08-1510)
(LTC DWG # 05-08-1610)
6
1
N8 Package
S8 Package
SYNC
SHDN
OUTA
OUTB
LTC1442
LT1676
GND
V
V
U1
U2
V
V
IN
IN
+
–
5
4
(0.457 0.076)
HYST
0.018 0.003
INA
INB
V
V
REF
SW
FB
V
CC
C
+
–
(1.270)
(3.302 0.127)
0.050
0.130 0.005
TYP
(3.175)
2
3
7
8
0.125
(0.101 – 0.254)
MIN
0.004 – 0.010
22k
R5
(0.508)
C3
0.020
MIN
N8 1197
R6
2.4M
(5.791 – 6.197)
D1
0.228 – 0.244
L1
V
IN
(6.477 0.381)
R8
6.8M
R9
240k
0.255 0.015*
+
C2
8
1
R1
39k
R2
10k
(4.801 – 5.004)
0.189 – 0.197*
2
7
8
1
R3
323k
1%
R4
100k
1%
1676 F08
6
2
3
7
(10.160)
0.400*
MAX
V
5V
OUT
5
4
6
3
(3.810 – 3.988)
0.150 – 0.157**
4
5
LT1676
SO8 0996
15