SC410 SEMTECH [Semtech Corporation], SC410 Datasheet - Page 3

• Manufacturer Part Number: SC410
• Description: 3A EcoSpeed TM Step-Down Regulator with LDO and Ultrasonic Power Save
• Manufacturer: SEMTECH [Semtech Corporation]

Absolute Maximum Ratings
LX to GND (V) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3 to +28
VIN to PGND, EN/PSV to AGND (V) . . . . . . . . . . . . -0.3 to +28
VIN to LDO (V) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . - 0 . 3
BST to LX (V) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3 to +6.0
BST to PGND (V) . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3 to +34
LDO to AGND (V) . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3 to +6.0
FB, PGOOD, TON (V) . . . . . . . . . . . . . . . . . . . . -0.3 to LDO +0.3
AGND to PGND (V) . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3 to +0.3
Maximum Peak Inductor Current (A) . . . . . . . . . . . . . . . . . 5 . 5
Peak IR Refl ow Temperature (°C ) . . . . . . . . . . . . . . . . . . . . . 260
ESD Protection Level (kV)
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 (in), 4 layer FR4 PCB with thermal vias under the exposed pad per JESD51 standards.
Electrical Characteristics
Unless specifi ed: V
Parameter
Input Supplies
VIN UVLO Threshold
VIN UVLO Hysteresis
Internal Bias UVLO Threshold
Internal Bias UVLO Hysteresis
VIN Supply Current
Controller
FB On-Time Threshold
Frequency Programming Range
Minimum Frequency Range
FB Input Bias Current
IN
=12V, T
A
=+25°C for Typ, -40°C to +85°C for Min and Max, T
(1)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Programmable with EN pin after 2 switching
during Ultrasonic PSAVE
I
See R
OUT
Rising UVLO V
= 0A, f
Conditions
FB=5V or 0V
TON
V
cycles
EN
Calculation
SW
= 0V
=25kHz
Recommended Operating Conditions
Supply Input Voltage (V) . . . . . . . . . . . . . . . . . . . . . . . 5.5 to 24
Maximum Continuous Output Current (A) . . . . . . . . . . . . . 3
Maximum Peak Inductor Current (A) . . . . . . . . . . . . . . . . . 5.0
Thermal Information
Storage Temperature (°C ) . . . . . . . . . . . . . . . . . . -60 to +150
Maximum Junction Temperature (°C ) . . . . . . . . . . . . . . . . 150
Operating Junction Temperature (°C ) . . . . . . . -40 to +125
Thermal Resistance, Junction to Ambient
TH
J
< 125°C, per detailed application circuit
(1)
0.7425
200
Min
-1
0.75
Typ
1.5
0.3
2.5
50
22
4
9
0.7575
1000
Max
(2)
+1
(°C/W ) . . . . 40
SC410
Units
mA
kHz
kHz
mV
μA
μA
V
V
V
V
3