XC6365 Datasheet, PDF (8/21 Pages) Torex Semiconductor – PWM Controllde, PWM/PFM Switchable Step-Down DC/DC Converers

XC6365/6366 Series
■ELECTRICAL CHARACTERISTICS (Continued)
XC6365A103MR, XC6366A103MR
PARAMETER
SYMBOL
Output Voltage
VOUT
Maximum Input Voltage
VIN
U.V.L.O. Voltage
VUVLO
(Minimum Operating Voltage)
Supply Current 1
IDD1
Supply Current 2
IDD2
Stand-by Current
ISTB
Oscillation Frequency
FOSC
Maximum Duty Ratio
PFM Duty Ratio
MAXDTY
PFMDTY
CE "High" Voltage
VCEH
CE "Low" Voltage
EXT "High" ON Resistance
EXT "Low" ON Resistance
Efficiency
VCEL
REXTBH
REXTBL
EFFI
Soft-Start Time
TSS
(VOUT=3.0V, FOSC=300kHz)
CONDITIONS
MIN. TYP.
2.975 3.000
10.0
-
Same as IDD1,
0.9
-
Voltage which EXT/pin voltage holding “H” level
No external components, CE=VIN, VOUT=0V
-
55
No external components,
XC6365
-
55
CE=VDD, FB=1.2V
XC6366
-
15
No external components, CE=FB=0V
-
-
Measuring of EXT/ waveform,
VIN=output voltage + 0.1V
255 300
100
-
No load (XC6366 only)
15
25
No external components, FB=0V,
0.65
-
Voltage which EXT/pin voltage holding “L” level
No external components, VOUT=0V,
-
-
Voltage which EXT/pin voltage holding “H” level
Same as IDD2, VEXT/=VIN-0.4V
-
17
Same as IDD1, VEXT/=0.4V
-
15
Use of a XP162A12A6
transistor recommended
-
92
Connect RSS, CSS, CE, 0V→ 3.0V
(When VIN≦3.0V, VIN=3.0V)
5
10
Conditions: 1. Unless otherwise stated, connect external components. VIN=VDD = 4.5V, IOUT = 200mA
2. XC6365/66C series external components: CSS=0.033μF, RSS=470kΩ
3. RFB1 = 400kΩ, RFB2 = 200kΩ, CFB = 100ppF
Ta=25℃
MAX. UNITS
3.075 V
-
V
2.2 V
100 μA
100 μA
27 μA
0.5 μA
345 kHz
-
%
35 %
-
V
0.20 V
24 μA
20 μA
-
%
20 msec
710