SC418ULTRT Semtech, SC418ULTRT Datasheet - Page 3

• Manufacturer Part Number: SC418ULTRT
• Description: IC BUCK SYNC ADJ 20MLPQ
• Manufacturer: Semtech
• Series: EcoSpeed™, SmartDrive™r
• Type: Step-Down (Buck)r

Specifications of SC418ULTRT

• Internal Switch(s): No
• Synchronous Rectifier: Yes
• Number Of Outputs: 1
• Voltage - Output: 0.5 ~ 5.5 V
• Frequency - Switching: 200kHz ~ 1MHz
• Voltage - Input: 3 ~ 28 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 20-MLPQ
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Output: -
• Power - Output: -
• Other names: SC418ULTRTTR

Absolute Maximum Ratings
LX to PGND (V). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3 to +30
LX to PGND (V) (transient — 100ns) . . . . . . . . . . . -2 to +30
DH, BST to PGND (V) . . . . . . . . . . . . . . . . . . . . . . . . -0.3 to +35
DH, BST to LX (V) . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3 to +6
DL to PGND (V) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3 to +6
VIN to PGND (V) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3 to +30
EN, FB, FBL, ILIM to AGND (V) . . . . . . . -0.3 to +(VDDA + 0.3)
PGOOD, PSV, TON to AGND (V) . . . . . -0.3 to +(VDDA + 0.3)
VLDO, VOUT to AGND (V) . . . . . . . . . . -0.3 to +(VDDA + 0.3)
TON to AGND (V). . . . . . . . . . . . . . . . . . . -0.3 to +(VDDA -1.5)
ENL to AGND (V) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3 to VIN
VDDP to PGND, VDDA to AGND (V) . . . . . . . . . . 0.3 to +6
VDDA to VDDP (V) . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3 to +0.3
AGND to PGND (V) . . . . . . . . . . . . . . . . . . . . . . . . . -0.3 to +0.3
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) This device is ESD sensitive. Use of standard ESD handling precautions is required.
(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 specified: V
Parameter
Input Supplies
Input Supply Voltage
VIN UVLO Threshold
VIN UVLO Hysteresis
VDDA UVLO Threshold
VDDA UVLO Hysteresis
VIN Supply Current
IN
=12V, VDDA = VDDP = 5V, T
(1)
(1)
A
= +25°C for Typ, -40 to +85 °C for Min and Max, T
EN = 0V, ignore LDO FB resistor bias current
Standby mode; VDDA = VDDP = ENL = 5V,
Measured at VDDA pin, falling edge
Measured at VDDA pin, rising edge
Shutdown mode; ENL , EN = 0V
Sensed at ENL pin, falling edge
Sensed at ENL pin, rising edge
Sensed at ENL pin; EN = 5V
Conditions
Recommended Operating Conditions
Input Voltage (V) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.0 to 28
VDDA to AGND, VDDP to PGND (V) . . . . . . . . . . . 4.5 to 5.5
VDDA to AGND, VDDP to PGND
VOUT to PGND (V) . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.5 to 5.5
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
Peak IR Reflow Temperature (°C) . . . . . . . . . . . . . . . . . . . . 260
Power-save/Ultrasonic Power-save supported
Power-save/Ultrasonic Power-save not supported
J
< 125°C, Typical Application Circuit
2.235
Min
2.40
2.50
2.40
3
(2)
(V) . . . . . . . . . . 3.0 to 4.5
Typ
2.60
2.40
2.90
2.70
130
0.2
0.2
8.5
(2)
(°C/W) . . . . . 50
2.565
Max
2.95
3.05
2.90
20.0
28
SC418
Units
μA
V
V
V
V
V
3