XR76115ELMTR-F View Datasheet(PDF) - Exar Corporation
Part Name
Description
MFG CO.
'XR76115ELMTR-F' PDF : 16 Pages View PDF
XR76115
Parameter
Reference voltage
VREF, Reference voltage
Min. Typ. Max. Units
0.597 0.600 0.603 V
0.596 0.600 0.604 V
0.594 0.600 0.606 V
DC load regulation
DC Line regulation
±0.25
%
±0.12
%
Parameter
Min. Typ.
Programmable Constant On-Time
On-Time 1
1.66 1.95
f corresponding to On-Time 1 243 280
Minimum Programmable On-
Time
109
On-Time 2
170 200
f corresponding to On-Time 2 362 417
On-Time 3
365 430
Minimum Off-Time
250
Diode Emulation Mode
Zero crossing threshold
-2
Soft-Start
SS Charge current
-14 -10
SS Discharge current
1
3
VCC Linear Regulator
VCC Output Voltage
4.8 5.0
4.51 4.7
Dropout Voltage
100 300
Power Good Output
Power Good Threshold
-10 -7.5
Power Good Hysteresis
2
Power Good Sink Current
1
15
Protection: OCP, OTP, Short-Circuit
Hiccup timeout
110
ILIM pin source current
45 50
ILIM current temperature
coefficient
0.4
ILIM comparator offset
Current limit blanking
-8
0
100
Thermal shutdown threshold
150
Thermal Hysteresis
15
Feedback pin short-circuit
threshold
50 60
Output Power Stage
High-side MOSFET RDSON
7
Low-side MOSFET RDSON
Maximum Output Current
4
15
Max. Units
2.24 µs
329 kHz
ns
230 ns
490 kHz
495 ns
350 ns
mV
-6
µA
mA
5.2
V
490 mV
-5
%
4
%
mA
ms
55 µA
%/°C
+8 mV
ns
°C
°C
70
%
10 mΩ
4.6 mΩ
A
Conditions
VIN=5V-22V VCC regulating
VIN=4.5V-5.5V VCC tied to VIN
• VIN=5V-22V VCC regulating,
VIN=4.5V-5.5V VCC tied to VIN
CCM operation, closed loop, applies to any COUT
Conditions
• RON=140kΩ, VIN=22V
VIN=22V, VOUT=12V
RON=6.98kΩ, VIN=22V
• RON=6.98kΩ, VIN=12V
VOUT=1.0V
• RON=16.2kΩ, VIN=12V
•
DC value measured during test
•
• Fault present
• VIN=6V to 22V, Iload=0 to 30mA
• VIN=5V, Iload=0 to 20mA
• IVCC=30mA
•
Rising temperature
•
Percent of VREF, short circuit is active
After PGOOD is up
VGS=4.5V, IDS=2A
VGS=4.5V, IDS=2A
•
© 2015 Exar Corporation
3/16
www.exar.com
Rev. 1B
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