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XRP6124EVB Datasheet(PDF) 2 Page - Exar Corporation

Part # XRP6124EVB
Description  Non-Synchronous PFET Step-Down Controller
Download  12 Pages
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Manufacturer  EXAR [Exar Corporation]
Direct Link  http://www.exar.com
Logo EXAR - Exar Corporation

XRP6124EVB Datasheet(HTML) 2 Page - Exar Corporation

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© 2011 Exar Corporation
2/12
Rev. 1.1.0
ABSOLUTE MAXIMUM RATINGS
These are stress ratings only and functional operation of
the device at these ratings or any other above those
indicated in the operation sections of the specifications
below is not implied. Exposure to absolute maximum
rating conditions for extended periods of time may affect
reliability.
VIN (XRP6124)............................................ -0.3V to 20V
VIN (XRP6124HV)........................................ -0.3V to 32V
GATE ...................................................... VIN-GATE<8V
FB, EN ..................................................... -0.3V to 5.5V
Storage Temperature .............................. -65°C to 150°C
Power Dissipation ................................ Internally Limited
Lead Temperature (Soldering, 10 sec) ................... 300°C
ESD Rating (HBM - Human Body Model) .................... 2kV
OPERATING RATINGS
Input Voltage Range VIN (XRP6124)................3.0V to 18V
Input Voltage Range VIN (XRP6124HV)............4.5V to 30V
Junction Temperature Range ....................-40°C to 125°C
Thermal Resistance θJA .....................................191°C/W
ELECTRICAL SPECIFICATIONS
Specifications are for an Operating Junction Temperature of TJ = 25°C only; limits applying over the full Operating Junction
Temperature range are denoted by a “•”. Minimum and Maximum limits are guaranteed through test, design, or statistical
correlation. Typical values represent the most likely parametric norm at TJ = 25°C, and are provided for reference purposes
only. Unless otherwise indicated, VIN = 3.0V to 18V, TJ = –40°C to 125°C.
Parameter
Min.
Typ.
Max.
Units
Conditions
UVLO Turn-On Threshold
2.5
2.8
3.0
V
XRP6124
UVLO Turn-On Threshold
3.8
4.2
4.5
V
XRP6124HV
UVLO Hysteresis
0.1
V
Operating Input Voltage Range
3.0
18
V
XRP6124
4.5
30
V
XRP6124HV
Shutdown VIN Current
1.5
3
µA
EN=0V, VIN=12V
Operating VIN Current
0.5
1
mA
VFB=1.2V and after fault
Reference Voltage
0.792
0.8
0.808
V
0.784
0.8
0.816
V
VSC_TH, Feedback pin Short
Circuit Latch Threshold
0.50
0.55
0.65
V
TON, Switch On-Time
0.4
0.5
0.6
µs
VIN=12V, XRP6124
TON, Switch On-Time
0.4
0.5
0.6
µs
VIN=24V, XRP6124HV
TOFF_MIN, Minimum Off-Time
250
350
ns
VIN=12V
Soft Start Time
2
ms
EN Turn-On Threshold
2
V
EN Turn-Off Threshold
1
V
EN Bias Current
0.01
0.1
µA
Gate Driver Pull-Down
Resistance
6
9
Gate Driver Pull-up Resistance
5
8
tr, gate rise time
45
ns
CGATE=1nF
tf, gate fall time
35
ns
CGATE=1nF
VIN - GATE voltage difference
5.5
6.4
8
V
VIN=12V
VIN - GATE voltage difference
2.6
V
VIN=3.0V


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