LTC3025-3 LINER [Linear Technology], LTC3025-3 Datasheet - Page 11

• Manufacturer Part Number: LTC3025-3
• Description: 1A, 0.9V to 10V, Very Low Dropout Linear Regulator
• Manufacturer: LINER [Linear Technology]

BLOCK DIAGRAM
NOTE:
FOR LT3022 ADJ PIN (5) IS
CONNECTED TO THE ADJ PIN,
R1 AND R2 ARE EXTERNAL.
FOR LT3022-1.X PIN (5) IS
CONNECTED TO THE SENSE PIN,
R1 AND R2 ARE INTERNAL.
TIE PGND, AGND AND THE EXPOSED
PAD TOGETHER.
9
SHDN
BIAS CURRENT
GENERATOR
REFERENCE
SHUTDOWN
AND
200mV
213mV
DIODE
IDEAL
RECOVERY
–
+
–
+
NO-LOAD
ERROR
SHUTDOWN
THERMAL
AMP
FIXED
V
1.2V
1.5V
1.8V
OUT
CURRENT
GAIN
25k
3.92k
3.92k
3.92k
R1
LT3022-1.5/LT3022-1.8
19.6k
25.5k
31.4k
R2
Q1
Q2
LT3022/LT3022-1.2
R3
D1
10, 11
PGND
D2
Q3
R2
R1
3022 BD
12, 13, 14
SENSE
AGND
OUT
ADJ
3, 4
6, 7
IN
5
5
11
3022fb