LT1946A View Datasheet(PDF) - Linear Technology
Part Name
Description
MFG CO.
'LT1946A' PDF : 12 Pages View PDF
BLOCK DIAGRA
LT1946A
SS
VC COMP
8
1
7
VIN 6
VOUT
R1 (EXTERNAL)
FB
R2 (EXTERNAL)
SHDN
SHUTDOWN
3
1.25V
REFERENCE
0.5V
4µA
+
A1
–
+
A3
–
120k
90pF
COMPARATOR
–
A2
+
R
Q
S
Σ
RAMP
GENERATOR
÷3
2.7MHz
OSCILLATOR
2
FB
Figure 2. Block Diagram
DRIVER
+
–
5 SW
Q1
0.01Ω
4 GND
EXPOSED
PAD
1946A F02
sn1946a 1946afs
5
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