RT8453BGSP Richtek USA Inc, RT8453BGSP Datasheet - Page 3

• Manufacturer Part Number: RT8453BGSP
• Description: IC LED DVR BUCK 40V 1.5A 8SOP
• Manufacturer: Richtek USA Inc

Specifications of RT8453BGSP

• Constant Current: Yes
• Internal Driver: Yes
• Type - Primary: Backlight, General Purpose
• Mounting Type: Surface Mount
• Topology: PWM, Step-Down (Buck)
• Number Of Outputs: 1
• Frequency: 400kHz ~ 600kHz
• Voltage - Supply: 4.5 V ~ 40 V
• Package / Case: 8-SOIC (0.154", 3.90mm Width) Exposed Pad
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Voltage - Output: -
• Operating Temperature: -
• Other names: 1028-1004-2

Function Block Diagram
DS8453B-00 August 2010
ACTL
VCC
EN
VC
SS
4.5V
1.4V
V
190
CC
(mV)
0
– V
-
+
+
-
ISN
Shutdown
6µA
0.3
+
-
OSC
Figure 1
1.2
GM
S
R
R
-
+
V
ACTL
SW
(V)
V
CC
ISN
GND
RT8453B
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