LT1304-5.0V UTC, LT1304-5.0V Datasheet - Page 5

• Manufacturer Part Number: LT1304-5.0V
• Description: MICROPOWER DC/DC CONVERTERS
• Manufacturer: UTC

UTC LT1304/LT1304-3.3V/LT1304-5.0V
BLOCK DIAGRAMS
UTC
Figure 1. LT1304 Block Diagram. Independent Low-Battery Detector A3 Remains Alive When Device Is in Shutdown
R4
R3
AC COUPLED
100mV / DIV
200mA
I
LOAD
1
8
V OUT
0
LBI
FB
Load Transient
Response
UNISONIC TECHNOLOGIES CO., LTD.
1.17V
1.24V
VREF
+
+
-
-
A1
100 μ s / DIV
2
A3
LBO
ENABLE
LINEAR INTEGRATED CIRCUIT
1.5μs OFF
TIMERS
6μs ON
UNDERVOLTA
GELOCKOUT
OFF
7
1.5V
SHDN
SHUTDOWN
BIAS
-1V
VIN
DRIVER
A2
500mA/DIV
AC COUPLED
+
100mV/DIV
+
-
5V/DIV
36mV
6
Vs w
V O UT
R2
Q3
1K
1K
I
C1
3
L
ILOAD=185mA
ILIM
VIN=2.5V
VOUT=5V
L=22 μ H
Q2
×1
7.2Ω
Burst Mode Operation
VIN
R1
L1
4
5
20μ s/DIV
×200
Q1
GND
SW
D1
+
C2
QW-R103-018,A
VOUT
5