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SC172 Datasheet(PDF) 5 Page - Semtech Corporation

Part # SC172
Description  2A EcoSpeedTM Synchronous Step-Down Regulator with Optional Ultrasonic Power Save
PDF  27 Pages
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Manufacturer  SEMTECH [Semtech Corporation]
Direct Link  http://www.semtech.com
Logo SEMTECH - Semtech Corporation

SC172 Datasheet(HTML) 5 Page - Semtech Corporation

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© 2010 Semtech Corporation
Electrical Characteristics (continued)
Note:
(1) Typical value from EVB, not ATE tested.
Parameter
Symbol
Conditions
Min
Typ
Max
Units
Enable/Power Save
Output Enabled
1
V
Output Disabled
0.4
V
EN/PSV Input Bias Current
EN/PSV = VDD or 0V
0.5
8.0
μA
Power Save Enabled
60
%V
DD
Forced Continuous Conduction Mode
EN/PSV floating
39
41
44
%V
DD
Gate Drivers
BST Switch On resistance
40
75
Ω
Internal Power MOSFETs
Current Limit
Valley Current Limit, VDD=5V
2.5
3.2
A
Valley Current Limit, VDD=3V
2
2.4
LX Leakage Current
VIN=5.5V, LX=0V, High Side
1
10
µA
Switch Resistance
High Side
95
150
mΩ
Low Side
75
120
Non-overlap time (1)
30
ns
Unless specified: V
IN =5V, TA=+25°C for Typ, -40°C to +85°C for Min and Max, TJ < 125°C
5
SC172



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