SC174MLTRT View Datasheet(PDF) - Semtech Corporation
Part Name
Description
MFG CO.
SC174MLTRT
Semtech Corporation
'SC174MLTRT' PDF : 27 Pages View PDF
SC174
Absolute Maximum Ratings
Recommended Operating Conditions
LX to GND ……………………………………… - 0.3 to +6.0V
VIN to PGND, EN/PSV to AGND ………………… -0.3 to +6.0V
VIN to VDD…………………………………………………+0.3V
BST to LX ………………………………………… -0.3 to +6.0V
BST to PGND…………………………………… -0.3 to +12V
VDD to AGND, VOUT to AGND………………… -0.3V to +6.0V
FB, PGOOD, TON …………………………… -0.3 to VDD + 0.3V
AGND to PGND………………………………… -0.3 to +0.3V
Peak IR Reflow Temperature ……………….…………… 260°C
ESD Protection Level(1) ………………………………………1kV
Supply Input Voltage……………………………… 3V to 5.5V
Maximum Continuous Output Current …………………… 4A
Thermal Information
Storage Temperature …………………………… -60 to +150°C
Maximum Junction Temperature ……………………… 150°C
Operating Junction Temperature ……………… -40 to +125°C
Thermal Resistance, Junction to Ambient(2) ………… 40°C/W
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) Tested according to JEDEC standard JESD22-A114-B.
Electrical Characteristics
Unless specified: VIN =5V, TA=+25°C for Typ, -40°C to +85°C for Min and Max, TJ < 125°C
Parameter
Symbol
Conditions
Input Supplies
Min
Typ
Max Units
VIN, VDD Input Voltage
3
5.5
V
VDD UVLO Threshold
VDD UVLO Hysteresis
Rising UVLO VTH
2.75
2.90
2.98
V
100
200
mV
EN/PSV= 0V
5
15
VIN, VDD Supply Current
Controller
FB On-Time Threshold
IOUT=0A, PSAVE, fSW=25kHz(1)
500
μA
Forced Continuous Conduction Mode
IOUT=0A , fSW=500kHz(1)
1000
0.7425
0.75
0.7575
V
Frequency Programming Range
FB Input Bias Current
Timing
On-Time
Minimum On-Time(1)
Minimum Off-Time(1)
See RTON Calculation
FB=VDD or 0V
Continuous Mode
VIN=5V, VOUT=3V, RTON=200kΩ
200
1000
kHz
-1
+1
μA
2.7
3
3.3
μs
80
ns
250
ns
© 2010 Semtech Corporation
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