XR76208EL-Q Datasheet, PDF (3/21 Pages) Exar Corporation – AEC-Q100 Qualified 40V PowerBloxTM 3A/5A/8A Synchronous Step Down COT Regulator

XR76203-Q/XR76205-Q/XR76208-Q
Symbol
Parameter
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_ON1
On-Time 1
f Corresponding to On-Time 1
T_ON(MIN)
T_ON2
T_ON3
Minimum Programmable On-Time
On-Time 2
On-Time 3
f Corresponding to On-Time 3
f Corresponding to 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
Current Limit Blanking
Conditions
V_IN = 5.5V to 40V, VCC regulating
V_IN = 5.5V to 40V, VCC regulating
CCM, closed loop, V_IN=5.5V-40V, applies
to any C_OUT
CCM, closed loop, applies to any C_OUT
R_ON = 237k, V_IN = 40V
V_OUT= 24V, V_IN = 40V, R_ON = 237k
R_ON = 14k, V_IN = 40V
R_ON = 14k, V_IN = 24V
R_ON = 35.7k, V_IN = 24V
V_OUT = 3.3V, V_IN = 24V, R_ON = 35.7k
V_OUT = 5.0V, V_IN = 24V, R_ON = 35.7k
DC value measured during test
Fault present
V_IN = 6V to 40V, I_LOAD = 0 to 30mA
V_IN = 5V, I_LOAD = 0 to 20mA
GL rising>1V
Min
Typ
Max Units
●
4.00
4.25
4.40
V
230
mV
0.596 0.600 0.604
V
● 0.594 0.600 0.606
V
±0.33
%
±0.39
%
●
1570 1840 2120
ns
●
283
326
382
kHz
120
ns
●
174
205
236
ns
●
407
479
550
ns
●
250
287
338
kHz
●
379
435
512
kHz
●
250
350
ns
-2
mV
●
-14
-10
-6
μA
●
1
mA
●
4.8
5.0
5.2
V
●
4.51
4.7
V
-10
-6.9
-5
%
1.6
4
%
1
mA
110
ms
45
50
55
μA
0.4
%/°C
●
-8
0
+8
mV
100
ns
©2016-2017 Exar Corporation
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Rev 1C