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SC4624SETRT 数据表(PDF) 5 Page - Semtech Corporation

部件名 SC4624SETRT
功能描述  Low Input Voltage, High Efficiency, 4A Integrated FET Synchronous Step down DC/DC Regulator
PDF  20 Pages
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制造商  SEMTECH [Semtech Corporation]
网页  http://www.semtech.com
标志 SEMTECH - Semtech Corporation

SC4624SETRT 数据表(HTML) 5 Page - Semtech Corporation

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5
 2007 Semtech Corp.
www.semtech.com
SC4624
POWER MANAGEMENT
Electrical Characteristics (Cont.)
Unless otherwise specified, V
IN= VCC=SYNC/EN=3.3V, ROSC=51.1KΩ, RISET=27.4KΩ, TA = -40°C to 85°C.
Parameter
Symbol
Conditions
Min
Typ
Max
Units
Error Amplifier (Cont.)
Output Voltage Low, COMP
FB = 0.6V, I
COMP = 1mA
0.1
0.25
V
Feedback Voltage
V
FB
0.4925
0.5
0.5075
V
Vcc = 2.3V to 5.5V
-2
+1
+2
%
Input Bias Current(1)
I
FB
FB=V
REF
60
nA
Power Switches
High-Side P-MOSFET
R
DSH(on)
V
IN=VCC=5V, ISOURCE = 1A, TA=TJ=25 °C
74
100
mΩ
Low Side N-MOSFET
R
DSL(on)
V
IN=VCC=5V, ISINK = 1A, TA=TJ=25 °C
47
85
mΩ
Power Good
PGood Voltage Low
V
PGL
I
PGOOD = 1mA
0.2
V
PGood Leakage Current
I
PGOOD
PGOOD = 5V
1
µ
A
PGood Delay Time(1)
T
D
Vout rising or Vout falling
1024
clks
PGood High Window
With respect to nominal output,
T
A=TJ=25 °C
+8
+10
+15
%
Note:
(1) Guaranteed by design.



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