SC427MLTRT Semtech, SC427MLTRT Datasheet - Page 3

• Manufacturer Part Number: SC427MLTRT
• Description: IC BUCK SYNC ADJ 10A 32MLPQ
• Manufacturer: Semtech
• Series: EcoSpeed™, SmartDrive™r
• Type: Step-Down (Buck)r

Specifications of SC427MLTRT

• Internal Switch(s): Yes
• Synchronous Rectifier: Yes
• Number Of Outputs: 1
• Voltage - Output: 0.75 ~ 5.25 V
• Current - Output: 10A
• Frequency - Switching: 200kHz ~ 1MHz
• Voltage - Input: 3 ~ 28 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 32-MLPQ
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Power - Output: -
• Other names: SC427MLTR

Absolute Maximum Ratings
LX to PGND (V). . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3 to +30
LX to PGND (V) (transient — 100ns max.) . . . . . . -2 to +30
VIN to PGND (V) . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3 to +30
EN/PSV, PGOOD, ILIM, to GND (V) . . . . . . -0.3 to +(V5V + 0.3)
VOUT, VLDO, FB, FBL, to GND (V) . . . . . . . -0.3 to +(V5V + 0.3)
V5V to PGND (V) . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3 to +6
TON to PGND (V) . . . . . . . . . . . . . . . . . . . . . -0.3 to +(V5V - 1.5)
ENL (V) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3 to V
BST to LX (V) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3 to +6.0
BST to PGND (V) . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3 to +35
AGND to PGND (V) . . . . . . . . . . . . . . . . . . . . . . . . . -0.3 to +0.3
ESD Protection Level
Exceeding the above specifications may result in permanent damage to the device or device malfunction. Operation outside of the parameters
specified in the Electrical Characteristics section is not recommended.
NOTES:
(1) Tested according to JEDEC standard JESD22-A114.
(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.
Unless specified: V
Electrical Characteristics
Parameter
Input Supplies
Input Supply Voltage
V5V Voltage
VIN UVLO Threshold
VIN UVLO Hysteresis
V5V UVLO Threshold
V5V UVLO Hysteresis
VIN Supply Current
IN
=12V, T
(1)
(1)
A
(kV) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
= +25°C for Typ, -40 to +85 °C for Min and Max, T
Standby mode; ENL=V5V, EN/PSV = 0V
Measured at V5V pin, falling edge
Measured at V5V pin, rising edge
Sensed at ENL pin, falling edge
Sensed at ENL pin, rising edge
ENL , EN/PSV = 0V, V
IN
EN/PSV = High
Conditions
Recommended Operating Conditions
Input Voltage (V) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.0 to 28
V5V to PGND (V) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.5 to 5.5
VOUT to PGND (V) . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.5 to 5.5
Thermal Information
Storage Temperature (°C) . . . . . . . . . . . . . . . . . . . . -60 to +150
Maximum Junction Temperature (°C) . . . . . . . . . . . . . . . 1 5 0
Operating Junction Temperature (°C) . . . . . . -40 to +125
Thermal resistance, junction to ambient
Peak IR Reflow Temperature (°C) . . . . . . . . . . . . . . . . . . . . .260
J
< 125°C, V5V = +5V, Typical Application Circuit
High-side MOSFET . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Low-side MOSFET . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
PWM controller and LDO thermal resistance . . . . . . 50
IN
= 28V
Min
2.40
2.23
4.5
3.7
3.5
3
SC417/SC427
Typ
2.60
2.40
130
0.2
3.9
3.6
0.3
8.5
(2)
(°C/W)
Max
2.95
2.57
3.75
5.5
4.1
28
20
Units
μA
V
V
V
V
V
V
3