SC4519HEVB-1 Semtech, SC4519HEVB-1 Datasheet - Page 6

• Manufacturer Part Number: SC4519HEVB-1
• Description: EVALUATION BOARD
• Manufacturer: Semtech

Specifications of SC4519HEVB-1

• Silicon Manufacturer: Semtech
• Application Sub Type: Step Down Switching Regulator
• Kit Application Type: Power Management - Voltage Regulator
• Silicon Core Number: SC4519H
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

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
www.semtech.com