Product Specification
IXD3235/36/37
ELECTRICAL OPERATING CHARACTERISTICS (CONTINUED)
IXD3235/36/37 B/C/E/G series, VOUT = 1.8 V, Ta = 250C
PARAMETER
SYMBOL
CONDITIONS
MIN. TYP. MAX. UNIT CIRCUIT
B/C series
E/G series
2.0
1.8
-
6.0
6.0
Operating Voltage
Range
VIN
V
Output Voltage
VOUT
IOUT_MAX
VUVLO
VIN = VCE = 5.0 V, IOUT = 30 mA
1.764 1.800 1.836
600
V
mA
V
Maximum Output Current
UVLO Voltage
VIN = VOUT(E) + 2.0 V, VCE = 1.0 V9)
VCE = VIN, VOUT = VOUT(E) x 0.5 V 1), 11), 16)
1.00 1.40 1.78
IXD323xx18Cxx
IXD323xx18Dxx
15
21
0
33
35
Supply
Current
IQ
VIN = VCE = 5.0 V, VOUT = VOUT(E) x 1.1 V
VIN = 5.0 V, VCE = 0 V, VOUT = VOUT(E) x 1.1 V
VIN = VOUT(E) + 2 V, VCE = 1.0 V, IOUT = 100 mA
µA
µA
Standby Current
ISTB
fOSC
1.0
IXD323xx18Cxx
1020 1220 1380
2550 3000 3460
Oscillation
Frequency
kHz
IXD323xx18Dxx
IXD323xx18Cxx
IXD323xx18Dxx
PFM
Switching
Current
120
170
160
220
200
270
12)
IPFM
VIN = VCE = VOUT(E) + 2 V, , IOUT = 1 mA (see table A)
mA
12)
P-channel ON time maximum
Maximum Duty Cycle Ratio
Minimum Duty Cycle Ratio
tPON_MAX
VIN = VCE = (see table B), IOUT = 1 mA
VIN = VCE = 5.0 V, VOUT = VOUT(E) x 0.9 V
VIN = VCE = 5.0 V, VOUT = VOUT(E) x 1.1 V
2Dmax 3DMAX
DMAX
DMIN
100
%
%
0
IXD323xx18Cxx
Efficiency 2)
92
EFFI
VIN = VCE = VOUT(E) + 1.2 V, IOUT = 100 mA
%
IXD323xx18Dxx
86
LX “H” ON Resistance 13)
LX “H” ON Resistance 23)
LX “L” ON Resistance 14)
LX “L” ON Resistance 24)
LX “H” Leakage Current5)
LX “L” Leakage Current5)
Current Limit10)
RLXH1
RLXH2
RLXL1
RLXL2
ILXH
VIN = VCE = 5.0 V, VOUT = 0 V, ILX = 100 mA
VIN = VCE = 3.6 V, VOUT = 0 V, ILX = 100 mA
VIN = VCE = 5.0 V
0.35 0.55
0.42 0.67
0.45 0.65
0.52 0.77
Ω
Ω
Ω
VIN = VCE = 3.6 V
Ω
VIN = VCE = 5.0 V, VOUT = 0 V, VLX = 5.0 V
VIN = VCE = 5.0 V, VOUT = 0 V, VLX = 5.0 V
VIN = VCE = 5.0 V, VOUT = VOUT(E) x 0.9 V8)
0.01
0.01
1.0
1.0
µA
µA
mA
ILXH
ILIM
ꢀꢁꢂꢃ
900 1050 1350
±100
Output Voltage Temperature
Characteristics
CE “H” Voltage14)
CE “L” Voltage15)
PWM mode Start Voltage6), 13)
-400C ≤ TOPR ≤ 850C, IOUT = 30 mA
ppm/0C
ꢀꢁꢂꢃ ꢄ ꢅꢁꢆꢇ
VCEH
VOUT = 0 V
VOUT = 0 V
IOUT = 1 mA
0.65
0
6.0
0.25
V
V
VCEL
VPWM
VIN -1.0
PWM/PFM mode
Start Voltage6), 13)
VIN –
0.25
VPFM
IOUT = 1 mA
CE “H” Current
CE “L” Current
IENH
IENL
VIN = VCE = 5.0 V, VOUT = 0 V
-0.1
0.1
0.1
0.4
2.5
µA
µA
VIN = 5.0 V, VCE = 0 V, VOUT = 0 V
-0.1
0.5
IXD323xB(G)18Cxx
0.25
1.0
IXD323xC(E)18Cxx
IXD323xB(G)18Dxx
IXD323xC(E)18Dxx
Soft-Start
Time
tSS
IOUT = 1 mA (see table C)
ms
ms
0.32 0.50
0.5
1.0
0.9
2.5
VIN = VCE = 5.0 V, VOUT = 0.8 x VOUT(E), LX short with
1 Ω resistor to ground
Latch Time7)
tLAT
20.0
B/C series
E/G series
0.675 0.900 1.150
0.338 0.450 0.563
Short Protection
Threshold Voltage
VIN = VCE = 5.0 V, LX short with 1 Ω resistor to
ground
VSHORT
RDCL
V
CL Discharge Resistance
VIN = VLX = 5.0 V, VCE = 0 V, VOUT - open
200
300
450
Ω
NOTE:
Test conditions: Unless otherwise stated, VIN = 5.0 V, VOUT(E) = Nominal Voltage
1) Including hysteresis operating voltage range
2) EFFI = {(output voltage × output current) / (input voltage × input current)} × 100%
3) ON resistance (Ω) = (VIN - Lx pin measurement voltage) / 100mA
4) Design target value
PS034201-0515
PRELIMINARY
4
ZILOG [ ZILOG, INC. ]
