SC4626CEVB-1 View Datasheet(PDF) - Semtech Corporation
Part Name
Description
MFG CO.
'SC4626CEVB-1' PDF : 21 Pages View PDF
SC4626
Absolute Maximum Ratings
VIN Supply Voltage ……………………………… -0.3 to 6.0V
LX Voltage ………….. -1 to VIN+1V, -3V (20ns Max), 6V Max
VOUT Voltage ……………………………… -0.3 to VIN+0.3V
EN Voltage …………………………………. -0.3 to VIN+0.3V
Peak IR Reflow temperature …………………………. 260°C
ESD Protection Level(2) …………………………………. 3kV
Recommended Operating Conditions
VIN Supply Voltage ……………………………… 2.9 to 5.5V
Maximum Output Current …………………………… 1.0A
Thermal Information
Thermal Resistance, Junction to Ambient(1) ………… 90°C/W
Maximum Junction Temperature …………………… +150°C
Operating Junction Temperature …………… -40 to +125˚C
Storage Temperature Range ………………… -65 to +150 °C
Exceeding the absolute maximum ratings may result in permanent damage to the device and/or device malfunction. Operation outside of the
parameters specified in the Electrical Characteristics section is not recommended.
Notes:
(1) Measured in free convection, mounted on 10mm x 10mm, 2 layer FR4 PCB shown in figure 4 with copper of 1oz for each layer.
(2) Tested according to JEDEC standard JESD22-A114-B.
Electrical Characteristics
Unless specified: VIN = 5.0V; -40°C<TA<+85 °C; TJ(MAX)=125°C; Unless otherwise noted typical values are TA=+25 °C.
Parameter
Symbol
Conditions
Min
Under-Voltage Lockout
Output Voltage Tolerance(1)
Current Limit
VIN Supply Current
VIN Shutdown Current
High Side Switch Resistance
Low Side Switch Resistance
LX Leakage Current
Line Regulation
Load Regulation(2)
Oscillator Frequency
Soft-Start Time(2)
EN Input High Current
EN Input Low Current
EN Input High Threshold
EN Input Low Threshold
UVLO
ΔVOUT
ILIMIT
IQ
ISHDN
RDSON_P
RDSON_N
ILK(LX)
ΔVLINE-REG
ΔVLOAD-REG
FOSC
TSS
IEN_HI
IEN_LO
VEN_HI
VEN_LO
Rising VIN
2.60
Hysteresis
VIN=3.6V to 5.0V; No Load
-2.5
Peak inductor current
1.5
EN= VIN, No Load
EN= GND
ILX= 100mA
ILX= -100mA
VIN=5.5V; LX=0V; EN=GND
VIN=5.5V; LX=5.0V; EN=GND
-10
VIN= 3.6 – 5.0V; IOUT=0A
VIN= 5.0V; IOUT=10mA – 1.0A
2.0
EN=VIN
-2.0
EN=GND
-2.0
1.2
© 2009 Semtech Corp.
Typ
2.70
250
7.5
1
0.15
0.125
1
-1
±1.0
±1.0
2.5
100
Max
2.80
+2.5
10
10
3.0
2.0
2.0
0.4
Units
V
mV
%
A
mA
µA
Ω
µA
%
%
MHz
µs
µA
µA
V
V
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