XR79110_17 Datasheet, PDF (3/19 Pages) Exar Corporation – 22V, 10A Synchronous Step Down COT Power Module

XR79110
Symbol
Parameter
Conditions
VCC UVLO Start Threshold, Rising
Edge
VCC UVLO Hysteresis
Reference Voltage
V_REF
Reference Voltage
DC Line Regulation
DC Load Regulation
Programmable Constant On-Time
T_ON(MIN)
T_ON2
Minimum Programmable On-Time
On-Time 2
f Corresponding to On-Time 2
T_ON3
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
OCP Comparator Offset
V_IN = 5V to 22V, VCC regulating
V_IN = 4.5V to 5.5V, VCC tied to VIN
V_IN = 5V to 22V, VCC regulating
V_IN = 4.5V to 5.5V, VCC tied to VIN
CCM, closed loop, V_IN=4.5V-22V, applies
to any C_OUT
CCM, closed loop, I_OUT=0A-15A, applies
to any C_OUT
R_ON = 6.98k, V_IN = 22V
R_ON = 6.98k, V_IN = 12V
V_OUT = 1.0V
R_ON = 16.2k, V_IN = 12V
DC value measured during test
Fault present
V_IN = 6V to 22V, I_LOAD = 0 to 30mA
V_IN = 4.5V, R_ON = 16.2k, f=670kHz
Min
Typ
Max

4.00
4.25
4.40

150
200
0.597
0.596
0.600
0.600
0.603
0.604
 0.594 0.600 0.606
±0.10
±0.35
120

148
184
220
468
560
695

319
390
461

250
350
-2

-14
-10
-6

1

4.8
5.0
5.2

4.3
4.37
-10
-7.5
-5
2
4
1
110
45
50
55
0.4

-8
0
+8
Units
V
mV
V
V
V
%
%
ns
ns
kHz
ns
ns
mV
μA
mA
V
V
%
%
mA
ms
μA
%/°C
mV
© 2015-2017 Exar Corporation
3 / 19
exar.com/XR79110
Rev 2B