XR75100 Datasheet, PDF (3/15 Pages) Exar Corporation – 40V Synchronous Step Down COT Controller

XR75100
Symbol
Parameter
VCC UVLO Hysteresis
Reference Voltage
V_REF
Reference Voltage
Conditions
V_IN = 5.5V to 40V
DC Line Regulation
DC Load Regulation
Programmable Constant On-Time
Maximum Recommended On-Time
On-Time 1
f Corresponding to On-Time 1
Minimum Programmable On-Time
On-Time 2
f Corresponding to On-Time 2
On-Time 3
Minimum Off-Time
Diode Emulation Mode
Zero Crossing Threshold
Soft-start
SS Charge Current
SS Discharge Current
VCC Linear Regulator
VCC Output Voltage
Power Good Output
Power Good Threshold
Power Good Hysteresis
Power Good Sink Current
Protection: OCP, OTP, Short-Circuit
Hiccup Timeout
ILIM Pin Source Current
ILIM Current Temperature Coefficient
CCM, closed loop, V_IN=5.5V-30V, applies
to any C_OUT
CCM, closed loop, I_OUT=0A-10A, applies
to any C_OUT
R_ON = 237k, V_IN = 40V
R_ON = 237k, V_IN = 40V
V_IN = 40V, V_OUT = 24V
R_ON = 14k, V_IN = 40V
R_ON = 14k, V_IN = 24V
R_ON = 14k, V_IN = 24V
V_OUT = 5V
V_OUT = 3.3V
R_ON = 35.7k, V_IN = 24V
DC value measured during test
Fault present
V_IN = 6V to 40V, I_LOAD = 0 to 30mA
V_IN = 5.5V, I_LOAD = 0 to 20mA
Min
Typ
Max
200
0.597 0.600 0.603
 _{0.594 0.600 0.606}
±0.3
±0.15
2.0

1.7
2.0
2.3
261
300
353
120
200
230

170
200
230
906
1042 1225
598
688
809

430
506
582

250
350
-4
-1
2

-14
-10
-6

1

4.8
5.0
5.2

4.8
5.0
5.2
-10
-7.5
-5
2
4
1
110
45
50
55
0.4
Units
mV
V
V
%
%
us
us
kHz
ns
ns
ns
kHz
kHz
ns
ns
mV
μA
mA
V
V
%
%
mA
ms
μA
%/°C
© 2016 Exar Corporation
3 / 15
exar.com/XR75100
Rev 1C