MD3221R Shindengen Electric Manufacturing Co.,Ltd, MD3221R Datasheet - Page 2

• Manufacturer Part Number: MD3221R
• Description: Step Down Dc - Dc Converter Power Ic
• Manufacturer: Shindengen Electric Manufacturing Co.,Ltd

Absolute Maximum Ratings
Recommended Operating Conditions
Electrical Characteristics
※1 CEM-3 Board：50.8×50.8mm
※3 PD1,θja1,θjc1 are the values of the power dissipation and thermal registance when electifying to a single internal element.
※4 Input voltage at the time of power supply operation.
Input/Output Ratings
Thermal Ratings
High Side MOSFET
Low Side MOSFET
Control IC
Thermal resistance
Input voltage
Drain-source breakdown voltage
Zero gate voltage drain current
Static drain-source on-state resistance
Source-drain diode forward voltage
Drain-source breakdown voltage
Zero gate voltage drain current
Static drain-source on-state resistance
Source-drain diode forward voltage
Supply ｃ urrent (f=100kHz)
Supply ｃ urrent (f=300kHz)
Supply current at remote OFF
Undervoltage lockout threshold (start)
Undervoltage lockout hysteresis
Bootstrap voltage
Line regulation
Load regulation
Reference voltage
Line regulation
Load regulation
Initial frequency1 accuracy
Initial frequency2 accuracy
Maximum duty cycle
Remote control ON input voltage
Remote control OFF input voltage V
Remote control source current
Soft-start source current
Threshold of over current limit at Ron detection Ith ＿ OCL1
Timer current
Soft-start input voltage before timer starting
Threshold of latch
Output voltage accuracy (Vo=0.8V)
Main MOSFET input voltage
Output current （ave）
Output current （peak）
Input voltage between V
Vboot sink current
Remote control voltage
OSC input voltage
Amp- input voltage
Vref sink current
Power dissipation max
Operating temperature
Storage temperature
Junction temperature
Junction temperature
Input voltage
Output voltage setting range
Error amplifier reference voltage
Thermal shutdown temperature
PD2,θja2,θjc2 are the values of the power dissipation and thermal registance when electifying to two internal element.
Item
Item
Item
2
，Thickness：1mm，Copper Pattern：300mm
※ 1
B
※ 1
and V
OUT
Vcc ＿ start
Dty ＿ max
V
Vcc＿hys
REG-IN
Vth ＿ lat
Symbol
V
REG-L
R/C
T ＿ TSD
V
Icc ＿ off
R
fosc＿ 1
fosc＿ 2
I
I
R
Vboot
V
V
R/C
Vamp
Itimer
V
V
Icc ＿
Icc ＿
DSS
V
DSS
Vref
DSS
Vs
DSS
Is
ON
F
SD
ON
I
SD
B
B
RC
θ j c 1
θ j c 2
/
＿ OFF
-IN
B
＿ ON
/
-L
I
/
s
＿
＿
＿
＿
T a - o p e
θ j a 1
θ j a 2
＿
＿
s
＿
I
O U T
＿
＿
L
H
V a m p -
P D 1
P D 2
H
H
H
L
O U T
L
L
1
Symbol
Symbol
※5 Output voltage at the time of power supply operation.
H
L
I b o o t
V
V
V
T s t g
（Top Side） ，There is no through-hole.
2
V
V
V
I r e f
V
O
T j
T j
i
O S C
C C
D D
R C
p e a k
I
I
B
a v e
※ 2 , ※ 3
※ 2 , ※ 3
※ 4
※ 5
V
V
D
D
I
I
Vcc＝4.5V to 20V
Vcc＝4.5V to 20V
Vcc＝4.5V to 20V
Vcc＝4.5V to 20V
Vcc＝4.5V to 20V
Vcc＝4.5V to 20V
I
I
※ 3
※ 3
＝1.2A,V
S
＝1.2A,V
S
D
DS
D
DS
※ 3
※ 3
＝1.2A,V
＝1.2A,V
8
＝1
＝1
＝22V,V
＝22V,V
Condition
Vcc＝5V
Vcc＝5V
Vcc＝5V
Vcc＝5V
Vcc＝5V
Vcc＝5V
Vcc＝5V
Vcc＝5V
Vcc＝5V
Vcc＝5V
Vcc＝5V
Vcc＝5V
Vcc＝5V
Vcc＝5V
Vcc＝5V
Vcc＝5V
m
m
A, V
A ,V
−
−
−
GS
GS
GS
GS
GS
GS
GS
GS
Recommendation
＝4.5V
＝4.5V
− 3 0 t o 8 5
＝0V
＝0V
− 4 0 t o 1 5 0
− 3 0 t o 1 2 5
＝0V
＝0V
＝0V
＝0V
4 . 5 t o 2 0
0 . 8 t o 1 4
Ratings
− 3 0
V r e f
V r e f
1 5 0
1 1 0
V
5 . 5
1 . 1
1 . 5
− 3
2 2
2 2
8 7
5 5
3 0
3
4
C C
0.784
0.784
−0.2
Unless otherwise specified : Ta=25ºC
Unless otherwise specified : Ta=25ºC
3.84
3.84
−40
2.75
255
MD3221R
MIN
4.1
0.4
−3
3.3
※2 The measurement result in the center of case.
22
22
85
85
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
2
3
0.800
−2.5
−33
3.45
100
300
140
TYP
0.5
3.3
4.3
0.8
2.9
22
22
25
90
−
−
−
−
−
−
−
−
−
−
−
−
−
4
4
2
5
0.816
0.816
4.16
4.16
−26
3.05
MAX
115
345
Vcc
1.5
1.5
3.9
5.9
4.5
0.6
0.7
−2
3.6
10
10
50
30
30
30
30
95
10
55
55
℃ / W
℃ / W
℃ / W
℃ / W
−
−
−
−
Units
Units
m A
m A
W
W
℃
℃
℃
℃
V
V
A
A
V
V
V
V
V
V
Units
mΩ
mΩ
kHz
kHz
μ A
μ A
mA
μ A
μA
μA
μA
mA
mV
mV
mV
mV
%
℃
V
V
V
V
V
V
V
V
V
V
V
A
V
V
V
U097−2