Product Specification
IXD3235/36/37
ABSOLUTE MAXIMUM RATINGS
PARAMETER
VIN Pin Voltage
SYMBOL
RATINGS
– 0.3 ~ 6.5
– 0.3 ~ VIN + 0.31
– 0.3 ~ 6.5
– 0.3 ~ 6.5
– 0.3 ~ 6.5
±1500
UNITS
VIN
VLX
VOUT
VFB
VCE
ILX
V
V
LX Pin Voltage
VOUT Pin Voltage
FB Pin Voltage
V
V
CE/MODE Pin Voltage
Lx Pin Current
V
mA
SOT-25
250
USP-6C
USP-6EL
WLP-5-03
120
Power Dissipation
PD
mW
120
750
Operating Temperature Range
Storage Temperature Range
TOPR
TSTG
– 40 ~ + 85
– 50 ~ +125
0C
0C
ELECTRICAL OPERATING CHARACTERISTICS
IXD3235/36/37 A series, VOUT = 1.8 V, Ta = 250C
PARAMETER
Operating Voltage Range
Output Voltage
SYMBOL
VIN
CONDITIONS
MIN. TYP. MAX. UNIT CIRCUIT
2.0
-
6.0
V
V
VOUT
VIN = VCE = 5.0 V, IOUT = 30 mA
VIN = VOUT(E) + 2.0 V, VCE = 1.0 V9)
VCE = VIN, VOUT = 01), 11)
1.764 1.800 1.836
600
Maximum Output Current
UVLO Voltage
IOUT_MAX
VUVLO
mA
V
1.00 1.40 1.78
IXD323xA18Cxx
IXD323xA18Dxx
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
IXD323xA18Cxx
1020 1220 1380
2550 3000 3460
Oscillation
Frequency
kHz
IXD323xA18Dxx
IXD323xA18Cxx
IXD323xA18Dxx
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
IXD323xA18Cxx
Efficiency 2)
92
EFFI
VIN = VCE = VOUT(E) + 1.2 V, IOUT = 100 mA
%
IXD323xA18Dxx
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
IENH
IOUT = 1 mA
CE “H” Current
VIN = VCE = 5.0 V, VOUT = 0 V
-0.1
0.1
µA
PS034201-0515
PRELIMINARY
2
ZILOG [ ZILOG, INC. ]
