XRP7740ILB-0X18-F Exar Corporation, XRP7740ILB-0X18-F Datasheet - Page 5

• Manufacturer Part Number: XRP7740ILB-0X18-F
• Description: IC CTRLR PWM/LDO STP-DWN 40TQFN
• Manufacturer: Exar Corporation
• Series: -r

Specifications of XRP7740ILB-0X18-F

• Topology: Step-Down (Buck) Synchronous (4), Linear (LDO) (1)
• Function: Any Function
• Number Of Outputs: 5
• Frequency - Switching: 1.5MHz
• Voltage/current - Output 1: Controller
• Voltage/current - Output 2: Controller
• Voltage/current - Output 3: Controller
• W/led Driver: No
• W/supervisor: No
• W/sequencer: Yes
• Voltage - Supply: 6.5 V ~ 20 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: *
• Package / Case: *
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 1016-1697

BLOCK DIAGRAM
© 2011 Exar Corporation
GPIO 0-3
SDA,SCL
VOUT1
VOUT2
VOUT3
VOUT4
VCC
VDD
PreScaler
PreScaler
GPIO
LDO
DAC
I2C
DAC
Vtar
Vtar
Feedback
Feedback
VREF
OSC
OTP
Fig. 2: XRP7708 and XRP7740 Block Diagram
ADC
SS & PD
ADC
SS & PD
Q
Q
u
u
a
a
d
d
Current
Current
ADC 1
ADC 2
C
C
Handling
Configuration
Channel 1
Channel 2
CLOCK
Channel 3
Channel 4
h
h
Digital
Digital
Fault
Registers
PID
PID
a
a
n
n
n
5/28
n
e
e
2-CH
2-CH
MUX
MUX
l
l
D
D
UVLO
Good
PWR
DPWM
DPWM
Hybrid
Hybrid
i
i
g
g
–
i
i
t
t
a
a
AUX ADC
l
l
P
P
X
X
W
W
Delay
Dead
Time
6
R
R
M
M
P
P
S
S
7
7
t
t
7
7
7-CH
MUX
e
Driver
Driver
e
Gate
Gate
0
0
p
p
8
8
D
D
STBY LR
o
o
Vout1
Vout2
Vout3
Vout4
a
a
Vtj
w
w
n
n
n
d
n
d
C
C
X
X
o
o
R
R
VIN2
VIN1
BST1
PGND1
BST2
VCCD
GH1
PGND2
GH2
LDOOUT
n
LX1
GL1
GL2
n
LX2
P
P
t
t
Rev. 1.2.0
r
r
7
7
o
o
7
7
l
l
l
l
e
e
4
4
r
r
0
0
s
s