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XR79110 数据表(PDF) 3 Page - Exar Corporation

部件名 XR79110
功能描述  22V, 10A Synchronous Step Down COT Power Module
PDF  20 Pages
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制造商  EXAR [Exar Corporation]
网页  http://www.exar.com
标志 EXAR - Exar Corporation

XR79110 数据表(HTML) 3 Page - Exar Corporation

  XR79110 Datasheet HTML 1Page - Exar Corporation XR79110 Datasheet HTML 2Page - Exar Corporation XR79110 Datasheet HTML 3Page - Exar Corporation XR79110 Datasheet HTML 4Page - Exar Corporation XR79110 Datasheet HTML 5Page - Exar Corporation XR79110 Datasheet HTML 6Page - Exar Corporation XR79110 Datasheet HTML 7Page - Exar Corporation XR79110 Datasheet HTML 8Page - Exar Corporation XR79110 Datasheet HTML 9Page - Exar Corporation Next Button
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© 2015 Exar Corporation
XR79110
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exar.com/XR79110
Rev 2A
VCC UVLO Start Threshold, Rising
Edge
4.00
4.25
4.40
V
VCC UVLO Hysteresis
150
200
mV
Reference Voltage
VREF
Reference Voltage
VIN = 5V to 22V, VCC regulating
0.597
0.600
0.603
V
VIN = 4.5V to 5.5V, VCC tied to VIN
0.596
0.600
0.604
V
VIN = 5V to 22V, VCC regulating
0.594
0.600
0.606
V
VIN = 4.5V to 5.5V, VCC tied to VIN
DC Line Regulation
CCM, closed loop, VIN=4.5V-22V, applies
to any COUT
±0.10
%
DC Load Regulation
CCM, closed loop, IOUT=0A-15A, applies
to any COUT
±0.35
%
Programmable Constant On-Time
TON(MIN)
Minimum Programmable On-Time
RON = 6.98k, VIN = 22V
120
ns
TON2
On-Time 2
RON = 6.98k, VIN = 12V
148
184
220
ns
f Corresponding to On-Time 2
VOUT = 1.0V
468
560
695
kHz
TON3
On-Time 3
RON = 16.2k, VIN = 12V
319
390
461
ns
Minimum Off-Time
250
350
ns
Diode Emulation Mode
Zero Crossing Threshold
DC value measured during test
-2
mV
Soft-start
SS Charge Current
-14
-10
-6
μA
SS Discharge Current
Fault present
1mA
VCC Linear Regulator
VCC Output Voltage
VIN = 6V to 22V, ILOAD = 0 to 30mA
4.8
5.0
5.2
V
VIN = 4.5V, RON = 16.2k, f=670kHz
4.3
4.37
V
Power Good Output
Power Good Threshold
-10
-7.5
-5
%
Power Good Hysteresis
24
%
Power Good Sink Current
1
mA
Protection: OCP, OTP, Short-Circuit
Hiccup Timeout
110
ms
ILIM Pin Source Current
45
50
55
μA
ILIM Current Temperature Coefficient
0.4
%/°C
OCP Comparator Offset
-8
0
+8
mV
Symbol
Parameter
Conditions
Min
Typ
Max
Units



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