SC4525DSETRT Semtech, SC4525DSETRT Datasheet - Page 4

• Manufacturer Part Number: SC4525DSETRT
• Description: IC BUCK ADJ 3A 8SOIC
• Manufacturer: Semtech
• Series: -r
• Type: Step-Down (Buck), PWM - Current Moder

Specifications of SC4525DSETRT

• Internal Switch(s): Yes
• Synchronous Rectifier: No
• Number Of Outputs: 1
• Voltage - Output: 1 V ~ 16.74 V
• Current - Output: 3A
• Frequency - Switching: 65kHz ~ 350kHz
• Voltage - Input: 3 V ~ 18 V
• Operating Temperature: -40°C ~ 105°C
• Mounting Type: Surface Mount
• Package / Case: 8-SOIC (0.154", 3.90mm Width) Exposed Pad
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: SC4525DSETR

Electrical Characteristics (Cont.)
Unless otherwise noted, V
Note 1: Switch current limit does not vary with duty cycle.
© 2011 Semtech Corp.
Parameter
Minimum Switch On-time
Minimum Switch Off-time
Switch Leakage Current
Minimum Bootstrap Voltage
BST Pin Current
Oscillator
Switching Frequency
Foldback Frequency
Soft Start and Overload Protection
SS/EN Shutdown Threshold
SS/EN Switching Threshold
Soft-start Charging Current
Soft-start Discharging Current
Hiccup Arming SS/EN Voltage
Hiccup SS/EN Overload Threshold
Hiccup Retry SS/EN Voltage
Over Temperature Protection
Thermal Shutdown Temperature
Thermal Shutdown Hysteresis
IN
= 12V, V
BST
= 15V, V
SS
= 2.2V, -40°C < T
A
= T
J
< 125°C, R
R
SET
V
V
V
Conditions
R
= 60.4kΩ, V
V
V
SS/EN
SS/EN
SS/EN
I
I
SET
SS/EN
V
SW
SW
SS/EN
SET
FB
= 60.4kΩ
= -3.9A
= -3.9A
= 60.4kΩ.
= 0 V
= 1.5 V
Falling
Falling
Rising
= 0 V
FB
= 0
Min
0.95
275
0.2
1.6
0.6
35
Typ
2.15
150
100
100
350
165
1.8
0.3
1.2
1.9
1.5
1.9
1.0
65
2.4
10
www.semtech.com
Max
SC4525D
150
150
425
100
2.3
0.4
1.4
3.2
1.2
10
Units
kHz
kHz
mA
µA
µA
µA
ns
ns
°C
°C
V
V
V
V
V
V
4