LTC1553L_15 Datasheet, PDF (19/20 Pages) Linear Technology – 5-Bit Programmable Synchronous Switching Regulator Controller

LTC1553L
APPLICATIONS INFORMATION
5.6k 5.6k
5.6k
0.1µF
+
10µF _2.7k
1N5817
PENTIUM II
SYSTEM
5V
1.8k
DALE
NTHS-1206N02
MOUNT THERMISTER
IN CLOSE THERMAL
PROXIMITY TO Q1
PWRGD ^VCC
I_MAX PV_CC
0.1µF
FAULT
G1
OT
20Ω
5
VID0 TO VID4
LTC1553L
I_FB
C1
150pF
OUTEN
COMP
SS
R_C
8.2k
C_C
C_SS
0.01µF 0.1µF
SGND
G2
GND SENSE
0.1µF
V_IN
5V
+ C_IN**
1200µF
×4
Q1*
L_O^†
2µH
18A
+ C_OUT^††
Q2*
330µF
×7
v_OUT
*SILICONIX SUD50N03-10
**SANYO 10MV1200GX
†_{COILTRONICS CTX02-13198 OR}
PANASONIC 12TS-2R5SP
†† _{AVX TPSE337M006R0100}
1553L F11
Figure 11. Single Supply LTC1553L 5V to 1.8V-3.5V Application with Thermal Monitor
PACKAGE DESCRIPTION Dimension in inches (millimeters) unless otherwise noted.
G Package
20-Lead Plastic SSOP (0.209)
(LTC DWG # 05-08-1640)
0.278 – 0.289*
(7.07 – 7.33)
20 19 18 17 16 15 14 13 12 11
0.301 – 0.311
(7.65 – 7.90)
0.205 – 0.212**
(5.20 – 5.38)
1 2 3 4 5 6 7 8 9 10
0.068 – 0.078
(1.73 – 1.99)
0° – 8°
0.005 – 0.009
(0.13 – 0.22)
0.022 – 0.037
(0.55 – 0.95)
*DIMENSIONS DO NOT INCLUDE MOLD FLASH. MOLD FLASH
SHALL NOT EXCEED 0.006" (0.152mm) PER SIDE
**DIMENSIONS DO NOT INCLUDE INTERLEAD FLASH. INTERLEAD
FLASH SHALL NOT EXCEED 0.010" (0.254mm) PER SIDE
0.0256
(0.65)
BSC
0.010 – 0.015
(0.25 – 0.38)
0.002 – 0.008
(0.05 – 0.21)
G20 SSOP 0595
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.
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