lt1947emse-trpbf Linear Technology Corporation, lt1947emse-trpbf Datasheet - Page 6

• Manufacturer Part Number: lt1947emse-trpbf
• Description: Adjustable Output Tft-lcd Triple Switching Regulator
• Manufacturer: Linear Technology Corporation

BLOCK DIAGRA
LT1947
6
OSCILLATOR
V
V
ON
O2
3MHz
Q3
OSC
SLOPE 1
SLOPE 2
C
W
T
–
+
1.26V REFERENCE
UNDERVOLTAGE
REF
LOCKOUT
Q4
AND
5.5µA
REF
–
+
FB1
FB2
28mV
+ –
REF
REF
REF
–
+
–
+
V
V
IN
IN
–
+
–
+
SLOPE 1
SLOPE 2
∑
∑
+
+
+
+
GND
R
R
OSC
OSC
S
S
Q
Q
SHUTDOWN
SHDN
SW1
SW2
Q1
Q2
0.01Ω
0.03Ω
1947BD
1947fa