XRP7665IDBTR-F Exar Corporation, XRP7665IDBTR-F Datasheet - Page 2

• Manufacturer Part Number: XRP7665IDBTR-F
• Description: Current Mode PWM Controllers 3A 18V Synchronous Step Down Regulator
• Manufacturer: Exar Corporation

Specifications of XRP7665IDBTR-F

• Duty Cycle (max): 90 %
• Output Voltage: 0.925 V to 16 V
• Output Current: 3 A
• Mounting Style: SMD/SMT
• Package / Case: SOIC-8
• Switching Frequency: 340 KHz
• Operating Supply Voltage: 4.75 V to 18 V
• Supply Current: 0.1 uA
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

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.
Supply Voltage V
Switch Node Voltage V
Boost Voltage V
Enable Voltage V
All Other Pins .............................................. -0.3 to +6V
Junction Temperature .......................................... 150°C
Storage Temperature .............................. -65°C to 150°C
Lead Temperature (Soldering, 10 sec) ................... 260°C
ESD Rating (HBM - Human Body Model) .................... 2kV
ESD Rating (MM - Machine Model) ........................... 200V
ELECTRICAL SPECIFICATIONS
Specifications are for an Operating Ambient Temperature of T
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 T
only. Unless otherwise indicated, V
© 2011 Exar Corporation
Shutdown Supply Current
Quiescent Current
Feedback Voltage V
Feedback Overvoltage Threshold
Error Amplifier Voltage Gain A
(Note 1)
Error Amplifier
Transconductance G
High-Side switch On Resistance
R
Low-Side switch On Resistance
R
High-Side switch Leakage
Current
High-Side Switch Current Limit
Low-Side Switch Current Limit
COMP to Current Sense
Transconductance G
Oscillator Frequency F
Short Circuit Oscillator
Frequency F
Maximum Duty Cycle D
Minimum Duty Cycle D
EN Threshold V
EN Threshold V
UVLO Threshold
UVLO Hysteresis
Soft-start Current
Soft-start Time (Note 1)
Thermal Shutdown (Note 1)
DSONH
DSONL
(Note 2)
(Note 2)
Parameter
OSC2
ENH
ENL
BS
EN
IN
................................... -0.3 to V
...................................... -0.3V to 20V
......................................... -0.3 to V
FB
EA
CS
OSC1
SW
MIN
MAX
......................................... 21V
EA
IN
0.900
Min.
= V
3.65
300
4.3
1.5
EN
= 12V, V
0.925
Typ.
4.00
0.30
400
800
100
340
160
0.1
1.0
1.1
0.1
5.6
1.4
5.2
90
90
90
15
6
OUT
SW
3
3
+6V
=3.3V.
A
A
IN
0.950
Max.
4.45
1
1
380
1.2
6.7
0.5
10
10
2/12
0
8
8
A
V
V
= 25°C only; limits applying over the full Ambient Operating
OPERATING RATINGS
Input Voltage V
Ambient Operating Temperature ................ -40°C to 85°C
Maximum Output Current .................................... 3A min
Thermal Resistance θ
S
S
y
y
Units
µA/V
kHz
kHz
V/V
mΩ
mΩ
A/V
mA
ms
µA
µA
µA
°C
n
%
%
n
V
V
A
A
V
V
V
c
c
A
h
h
= 25°C, and are provided for reference purposes
r
r
o
o
•
n
n
IN
o
o
V
V
I
I
V
From Drain to Source
V
V
V
C
SW
SW
....................................... 4.75V to 18V
EN
EN
IN
FB
FB
IN
SS
u
u
=18V, V
=0.2A&0.7A
=-0.2A&-0.7A
=0.85V
=1V
=0V
=2V, V
=0.1µF, I
Rising
s
s
JA
S
S
...................................... 60°C/W
t
t
e
e
FB
EN
=1V
p
p
OUT
=0V, V
-
-
Conditions
=500mA
D
D
o
o
SW
w
w
=0V
n
n
X
X
C
C
R
R
o
o
P
n
P
n
Rev. 1.0.0
v
v
7
7
e
e
6
6
r
r
6
t
6
t
e
e
5
5
r
r