UC3655G-XX-AF5-R UTC [Unisonic Technologies], UC3655G-XX-AF5-R Datasheet - Page 5

• Manufacturer Part Number: UC3655G-XX-AF5-R
• Description: 500mA SYNCHRONOUS STEP-DOWN DC/DC CONVERTERS
• Manufacturer: UTC [Unisonic Technologies]

UC3655
Stand-by Current
PFM Switch Current
Current Limit
Efficiency (Note 1)
OSCILLATOR
Oscillation Frequency
Maximum Duty Ratio
Minimum Duty Ratio
Soft-Start Time
Latch Time
CE (PIN 3)
CE "H" Voltage
CE "L" Voltage
CE "H" Current
CE "L" Current
LX (PIN 5)
LX SW "H" ON Resistance
LX SW "L" ON Resistance
LX SW "H" Leak Current
LX SW "L" Leak Current
UC3655-33 (V
Operating Voltage Range
Output Voltage
U.V.L.O. Voltage
Output Voltage Temperature
Characteristics
Maximum Output Current
Supply Current
Stand-by Current
PFM Switch Current
Current Limit
Efficiency (Note 1)
OSCILLATOR
Oscillation Frequency
Maximum Duty Ratio
Minimum Duty Ratio
Soft-Start Time
Latch Time
CE (PIN 3)
CE "H" Voltage
CE "L" Voltage
CE "H" Current
CE "L" Current
LX (PIN 5)
LX SW "H" ON Resistance
LX SW "L" ON Resistance
LX SW "H" Leak Current
LX SW "L" Leak Current
ELECTRICAL CHARACTERISTICS(Cont.)
PARAMETER
PARAMETER
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
IN
=5.0V, V
OUT
=3.3V)
V
SYMBOL
SYMBOL
OUT
I
OUT(MAX)
I
ΔV
I
I
V
I
I
I
STN-BY
D
V
V
STN-BY
D
V
D
V
R
D
V
R
R
LEAKH
R
LEAKH
f
LEAKL
f
LEAKL
I
I
I
I
I
I
T
T
I
T
V
I
T
I
PFM
OSC
CEH
UVLO
PFM
OSC
CEH
CEL
*ΔT
CEL
LIM
LIM
MAX
CEH
OUT
MAX
CEH
CEL
LXH
DD
CEL
LXH
η
MIN
LXL
η
MIN
LXL
SS
SS
lat
OUT
lat
IN
OPR
V
CE=V
V
CE=V
I
CE=V
CE=V
I
V
V
V
CE=0.5V
CE=0.5V
V
(Note 2)
V
CE=V
CE=V
I
V
V
V
CE=V
V
CE=V
I
CE=V
CE=V
I
V
V
V
CE=0.50V
CE=0.5V
V
(Note 2)
V
OUT
OUT
OUT
OUT
OUT
Preliminary
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
=5.0V, CE=0V, V
=CE=5.0V, V
=CE=5.0V (Note 3)
=CE=5.5V, V
=5.5V, CE=0V, V
=V
=V
=4.5V
=CE=5.0V, V
=5.0V, CE=0V, V
=CE=5.0V, V
=CE=5.0V (Note 3)
=CE=5.5V, V
=5.5V, CE=0V, V
=V
=V
=100mA
=1mA
=30mA, -40 ≤T
=100mA
=1mA
OUT
OUT
OUT
OUT
IN
IN
IN
OUT
IN
IN
IN
IN
IN
OUT
TEST CONDITIONS
TEST CONDITIONS
, I
=4.5V, I
, V
, I
, V
, I
=4.5V, I
, V
=5.0V, CE=0V, LX=0V
=5.0V, CE=0V, LX=5.0V
=5.0V, CE=0V, LX=0V
=5.0V, CE=0V, LX=5.0V
=V
IN
IN
=V
IN
OUT
OUT
OUT
OUT
OUT
OUT
IN
, V
, I
, I
, V
IN
IN
=1mA
LX
=30mA
=1mA
LX
OUT
=0V
=0V, LX=L
=0V
=100mA
=100mA
OUT
OUT
OUT
℃
OUT
OUT
OUT
OUT
OUT
=0V, I
=0V, I
=100mA
=100mA
=0V
=0V
=V
=0V
=0V
OUT
OUT
OUT
OUT
OPR
OUT
LX
=V
=0V
=V
=0V
≤85℃
LX
=100mA
*1.1
=100mA
OUT
OUT
*1.1
*1.1
3.234
1020
1020
MIN
-0.1
-0.1
MIN
-0.1
-0.1
100
600
100
500
100
600
100
V
V
0.5
0.9
2.0
1.0
0.5
0.9
1
1
SS
SS
3.300 3.366
1200
±100
1200
TYP
0.01
0.01
TYP
1.40
0.01
0.01
140
700
140
700
1.0
0.5
0.6
1.0
0.5
0.6
92
75
92
0
0
MAX
1380
MAX
1380
1.78
180
120
180
1.0
3.0
0.3
0.1
0.1
1.0
1.0
6.0
1.0
3.0
0.3
0.1
0.1
1.0
1.0
V
V
CMOS IC
20
20
0
0
IN
IN
QW-R502-280.b
ppm/°C
UNIT
UNIT
kHz
kHz
mA
mA
mA
mA
mA
ms
ms
ms
ms
µA
µA
µA
µA
µA
µA
µA
µA
µA
µA
µA
%
%
%
%
%
%
V
V
Ω
Ω
V
V
V
V
V
Ω
Ω
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