SC4539ULTRT Semtech, SC4539ULTRT Datasheet - Page 3

• Manufacturer Part Number: SC4539ULTRT
• Description: TVS
• Manufacturer: Semtech

Specifications of SC4539ULTRT

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Absolute Maximum Ratings
Supply Voltage (V) . . . . . . . . . . . . . . . . . . . . . . . . . -0.3 to +20.0
LX Voltage, Output Voltage (V) . . . . . . . . . . . . . -0.3 to +45
Current Sink Voltage (V) . . . . . . . . . . . . . . . . . . . . -0.3 to +45
Enable Voltage (V) . . . . . . . . . . . . . . . . . . . . . . -0.3 to (V
Compensation Voltage (V) . . . . . . . . . . . . . . . . . . -0.3 to +2.0
Current Set Voltage (V) . . . . . . . . . . . . . . . . . . . . . . -0.3 to +2.0
ESD Protection Level
Exceeding the above specifi cations may result in permanent damage to the device or device malfunction. Operation outside of the parameters
specifi ed in the Electrical Characteristics section is not recommended.
NOTES:
(1) Tested according to JEDEC standard JESD22-A114-B.
(2) Calculated from package in still air, mounted to 3” x 4.5”, 4 layer FR4 PCB with thermal vias under the exposed pad per JESD51 standards.
Electrical Characteristics
Unless otherwise noted: V
Parameter
UVLO Threshold
UVLO Hysteresis
Quiescent Supply Current
Shutdown Supply Current
EN Logic High Voltage
EN Logic Low Voltage
EN Logic Input Current
Thermal Shutdown Temperature
Thermal Shutdown Hysteresis
Boost Converter Characteristics
Switching Frequency
Maximum Duty Cycle
Minimum On-Time
Switch Over-Current Protection
IN
= 3.6V, C
(1)
(kV) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
IN
= 2.2μF, C
OUT
= 1μF, C
COMP
Symbol
= 47nF, R
V
t
V
UVLO-HYS
D
ON(MIN)
I
I
SHDN
IL,
T
I
V
f
V
UVLO
OCP
I
SW
MAX
Q
SD
IN
IL
I
IH
IN
+ 0.3)
COMP
= 1.27kΩ, R
V
Recommended Operating Conditions
Ambient Temperature Range (°C) . . . . . . . . . . . . . -40 to +85
Supply Voltage (V) . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.8 to 5.5
Output Voltage (V) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 to 25
Thermal Information
Thermal Resistance, Junction to Ambient
Maximum Junction Temperature (°C) . . . . . . . . . . . . . . +150
Storage Temperature Range (°C) . . . . . . . . . . . . -65 to +150
Peak IR Reflow Temperature (10s to 30s) (°C) . . . . . . . +260
IN
= 5.5V, V
V
ISET
IN
EN tied to GND
Not switching
= 5.76kΩ, L = 22μH, T
Conditions
= 3.2V, T
V
T
IN
J
rising
rising
EN
= 0V or 5.5V
A
= 25°C
A
= -40 to 85ºC, typical values are at T
Min
2.40
1.80
680
500
92
±0.01
Typ
2.60
120
155
800
100
1.8
0.1
20
(2)
(°C/W) . . . . . 74
Max
2.79
920
850
0.8
SC4539
±1
1
A
= 25ºC.
Units
kHz
mV
mA
mA
μA
μA
°C
°C
ns
%
V
V
V
3