XRP7659EVB Exar, XRP7659EVB Datasheet - Page 3

• Manufacturer Part Number: XRP7659EVB
• Description: Power Management IC Development Tools EVAL XRP7659
• Manufacturer: Exar
• Type: DC/DC Converters, Regulators & Controllersr

Specifications of XRP7659EVB

• Rohs: yes
• Product: Evaluation Boards
• Tool Is For Evaluation Of: XRP7659
• Input Voltage: 4.5 V to 18 V
• Output Voltage: 3.3 V
• Output Current: 1.5 A

TYPICAL PERFORMANCE CHARACTERISTICS
All data taken at V
section of this manual.
Bode plots of the XRP7659EVB, as illustrated in Fig. 3, show a stable system with a ~60kHz
crossover frequency and ~50dB phase margin.
Furthermore, the XRP7659EVB is stable and exhibits similar performances with both the
recommended resistors R1 and R2 at respectively 43kΩ and 14kΩ and the Monolithic Power
System’s MP2359 recommended resistors R1 and R2 at respectively 49.9kΩ and 16.2kΩ.
EVALUATION BOARD SCHEMATICS
© 2012 Exar Corporation
VIN
GND
100k, 5%
IN
3PIN_JUMPER
= 12V, T
R3
1
1
J
.
.
= T
5
5
EN=EXT
J1
Fig. 3: Gain and Phase Margin Responses of XRP7659EVB
A
A
A
= 25°C, unless otherwise specified - Schematic and BOM from Application Information
1
1
8
8
Title
Size
Date:
V
V
10uF/25V
A
1
1
CIN
.
.
4
4
XRP7659EVB
Document Number
146-6691-01
M
M
Tuesday , August 07, 2012
H
H
R2
14k, 1%
z
z
n
n
D1, MBR230LSFT1
2A/30V
3/5
o
U1
XRP7659
o
n
n
-
-
S
S
y
y
n
n
R1
43k, 1%
c
c
CB
h
h
10nF
r
r
L1, 744777004
o
o
n
n
4.7uH, 4A
o
o
Sheet
u
u
s
s
S
S
t
t
e
e
1
p
p
-
-
D
D
COUT
o
o
22uF/6.3V
of
w
w
n
n
X
X
VOUT
GND
1
C
C
R
R
o
o
Rev
P
P
n
n
Rev. 1.0.0
v
7
v
7
e
e
6
6
r
r
5
5
t
t
e
e
9
9
r
r