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XC9206 データシート(PDF) 6 Page - Torex Semiconductor

部品番号 XC9206
部品情報  PWM, PWM/PFM Switchable Step-Down DC/DC Converters with Driver Transistor Built-In
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メーカー  TOREX [Torex Semiconductor]
ホームページ  http://www.torex.co.jp
Logo TOREX - Torex Semiconductor

XC9206 データシート(HTML) 6 Page - Torex Semiconductor

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XC9206/XC9207/XC9208 Series
PARAMETER
SYMBOL
CONDITIONS
MIN.
TYP.
MAX.
UNIT
CIRCUIT
Output Voltage
VOUT
When connected to ext. components
CE=VIN, IOUT=30mA
3.234 3.300 3.366
V
(XC9206, 9207)
1.8
-
6.0
Operating Voltage Range
VIN
(XC9208)
2.0
-
6.0
V
Maximum Output Current
IOUTMAX
When connected to ext. components
500
-
-
mA
U.V.L.O. Voltage
VUVLO
CE=VIN, VOUT=0V,
Voltage which Lx pin voltage holding "L"
level
(*1)
1.00
1.40
1.78
V
Supply Current 1
IDD1
CE=VIN, VOUT=fixed voltage x 0.9V
-
370
585
μA
Supply Current 2
IDD2
CE=VIN, VOUT=fixed voltage x 1.1V
-
120
180
μA
Stand-by Current
Istb
CE=VSS, VOUT=fixed voltage x 1.1V
-
0
1
μA
Oscillation Frequency
FOSC
When connected to ext. components
CE=VIN, IOUT=30mA
1.020 1.200 1.380
MHz
PFM Pulse Width Rate
PFMDTY
When connected to ext. components
(XC9207, XC9208 only),
CE=VIN, IOUT=1mA
26
32
38
%
Maximum Duty Cycle
MAXDTY
CE=VIN, VOUT=0V
100
-
%
Minimum Duty Cycle
MINDTY
CE=VOUT=VIN
-
-
0
%
Efficiency
(*2)
EFFI
When connected to ext. components,
CE=VIN, IOUT=100mA
-
92
%
Lx SW ON Resistance
RLx
CE=VIN, VOUT=0V, ILx=400mA
(*3)
-
0.4
0.9
Ω
Current Limit
ILIM
VIN=CE=5.0V, VOUT=0V
-
600
-
mA
(XC9206, 9207)
1.2
-
VIN
CE "H" Voltage
VCEH
VOUT=0V, When CE
voltage is applied Lx
determine "H"
(XC9208)
0.9
-
VIN
V
CE "L" Voltage
VCEL
VOUT=0V, When CE voltage is applied
Lx determine "L"
VSS
-
0.3
V
PWM "H" Voltage
VPWMH
When connected to ext. components
(XC9208 only), IOUT=1mA
(*4)
VIN-0.3
-
-
V
PWM "L" Voltage
VPWML
When connected to ext. components
(XC9208 only), IOUT=1mA
(*4)
-
-
VIN-1.0
V
CE "H" Current
ICEH
CE=VIN=5.5V, VOUT=0V
-0.1
-
0.1
μA
CE "L" Current
ICEL
CE=0V, VIN=5.5V, VOUT=0V
-0.1
-
0.1
μA
Soft Start Time
TSS
When connected to ext. components
CE=0V → VIN, IOUT=1mA
0.8
-
6.0
ms
Latch Time
Tlat
When connected to ext. components
VIN=CE=5.0V, short VOUT by 1Ω
resistance
(*5)
-
-
12.0
ms
VOUT=3.3V,FOSC=1.2MHz, Ta=25
XC9206A33CMR, XC9207A33CMR, XC9208A33CMR
Test condition: Unless otherwise stated, VIN = 5.0V
NOTE:
*1: Including hysteresis operating voltage range.
*2: EFFI = [ (output voltage x output current) / (input voltage x input current) ] x 100
*3: On resistance = VLX (measurement voltage) / 0.4
*4: The CE/MODE pin of the XC9208A series works also as an external PWM control and PWM/PFM control switching pin.
When the
IC is in the operation, control is switched to the PWM mode when the CE/MODE pin voltage is equal to or greater than VIN minus 0.3
V, and to the automatic PWM/PFM switching mode when the CE/MODE pin voltage is equal to or lower than VIN minus 1.0 V and
equal to or greater than VCEH.
*5: Time until it short-circuits VOUT with GND through 1
Ω of resistance from a state of operation and is set to VOUT=0V from current limit
pulse generating.
■ ELECTRICAL CHARACTERISTICS (Continued)


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