SC4519HSETRT Semtech, SC4519HSETRT Datasheet - Page 6

• Manufacturer Part Number: SC4519HSETRT
• Description: IC STEP DOWN SW REG 3A 8-SOIC
• Manufacturer: Semtech
• Type: Step-Down (Buck)r

Specifications of SC4519HSETRT

• Internal Switch(s): Yes
• Synchronous Rectifier: No
• Number Of Outputs: 1
• Current - Output: 3A
• Frequency - Switching: 600kHz
• Voltage - Input: 4.4 ~ 24 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 8-SOIC (3.9mm Width) Exposed Pad, 8-eSOIC. 8-HSOIC
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Voltage - Output: -
• Power - Output: -
• Other names: SC4519HSETR

POWER MANAGEMENT
Block Diagram
Typical Characteristic - OCP Limit
2007 Semtech Corp.
6.5
5.5
4.5
3.5
2.5
SYNC
SYNC
COMP
COMP
7
6
5
4
3
2
FB
FB
EN
EN
0
OSCILLATOR
OSCILLATOR
-
-
EA
EA
20
1V
1V
SC4519H OCP Limit vs Duty Cycle
REFERENCE
REFERENCE
0.7V
0.7V
SLOPE COMP
SLOPE COMP
FREQUENCY
FREQUENCY
40
Duty Cycle (%)
+
+
PWM
PWM
UVLO
UVLO
SLOPE
SLOPE
CLK
CLK
SLOPE
SLOPE
6
60
+
+
+
+
S
S
R
R
Q
Q
Is
Is
SOFT START
SOFT START
HICCUP
HICCUP
FB
FB
Is
Is
80
ISEN
ISEN
+
+
OL
OL
POWER
POWER
TRANSISTOR
TRANSISTOR
40m
40m
100
GND
GND
BST
BST
IN
IN
SW
SW
ILIM @-40C
ILIM @25C
ILIM @125C
SC4519H
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