MD1620F [SHINDENGEN]
5V Stepping Down DC to DC Converter Power IC; 5V降压直流到直流转换电源IC
| 型号： | MD1620F |
| 厂家： | 
SHINDENGEN ELECTRIC MFG.CO.LTD |
| 描述： | 5V Stepping Down DC to DC Converter Power IC |
| 文件： | 总4页 (文件大小：431K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
CAT.No.TU074 SEP.2000
5V Stepping Down
DC to DC Converter Power IC
MD1620F
Summary
-
MD1620F is a non-is olated, PWM control s tepping down DC DC converter power IC
including main MOSFET switch and free wheel SBD inside. It has maximum 10W (5V 2A)
output power and high efficiency in wide range. It als o has wide input voltage rang e
-
(12 57V) . Its p a c ka ge is c omp a c t s urfa c e mount typ e a nd it is p os s ib le to d e s ign
DC to DC converter with fewer external components and smaller mounting area.
Feature
-
Input Voltage Range 12 57V
Maximum Output Current 2A
Included main MOSFET switch and free wheel SBD
Fixed Frequency 250kHz PWM Control
Over Current Protection Function
Low Input Voltage Protection Function (ULVO)
Thermal Shut Down Function
Recruit Ikebukuro Bldg., 13-23, 1-chome,
Minami Ikebukuro, Toshima-ku, Tokyo 171-0022,
Japan
Phone: Tokyo(03)5951-8106
Fax :(03)5951-8089
Block Diagram
Vref
26
Vcc
5
Vboot
6
VB
23
VG
22
VDD
TAB2
UVLO
START =11.3V
STOP =10.8V
BOOT reference
Vref=11V
Driver
Vref=Vout+10V
reference
Main Switch
MOS OFF
TSD
+
Vref=5V 5%
-
driver
100 C
150 C
Error amp
TAB1
PWM Comp
-
VOUT
5.0VF/B
Q
R
2.5V
3V
1V
S
OSC
f=250kHz
CLM Vth=
0.1~0.2V
~
8 11
25
28
27
1
2
3
4
24
-
+
CHOUT amp-
ampOUT
S/S F/B OCL OCL
GND
P.GND
Application Example
Pin Layout
:
:
:
:
S/S
1
2
3
28 amp
-
:
-
F/B OCL
27 ampOUT
:
26 Vref
+
OCL
INPUT
OUTPUT
5V
:
25 CHOUT
:
:
:
:
GND
Vcc
Vboot
N/C
4
5
6
7
Vboot
VB
~
12 57V
VOUT
VDD
VCC
:
24 GND
:
23 VB
MD1620F
:
22 VG
OCL+
amp OUT
F/B OCL-
amp-
:
:
VDD
VOUT TAB1
TAB2
CHOUT
GND
S/S
:
:
:
21 N/C
P.GND
P.GND
8
9
P.GND
:
20 N/C
:
:
19 N/C
P.GND 10
:
18 N/C
:
P.GND 11
:
N/C 12
:
17 N/C
GND
GND
:
:
N/C 13
16 N/C
:
:
15 N/C
N/C 14
(
=
)
Absolute Maximum Rating Ta 25
Item
Symbol
Rating
Unit
V
V
Power Supply Voltage
Output MOS Input Voltage
Output Current A V E
V
IN
60
60
2
V
DD
(
)
IOUTave
A
(
)
Output Current P E A K
Storage Temperature
Junction Temperature
I
OUTpeak
Tstg
3
A
C
C
40 150
~
Tj
150
(
=
)
Electrical Characteristics Ta 25
Item
HighsideMOS
Drain-Source Voltage
Symbol
Vdss
Condition
M I N
60
T Y P
M A X
Unit
V
= =
1mA,VGS 0V
ID
HighsideMOS
Zero Gate Voltage Drain Current
=
=
Idss
Ron
V
DS 60V,VGS 0V
10
550
1.5
HighsideMOS
Static Drain-Source On-state Resistance
=
=
=
ID
1.2A,VGS 4V
270
HighsideMOS
Source-Drain Diode Forward Voltage
=
VSD
IS
1.2A,VDS 0V
V
V
LowSideSBD
Maximum Reverse Voltage
VRM
60
LowSideSBD
Forward Voltage
=
V
F
I
F
1.2A
0.58
2.5
V
LowSideSBD
Reverse Current
=
IR
V
R
VRM
mA
Start up Voltage
Stopping Voltage
Vcc_start
Vcc_stop
Vcc_hys
Icc
Vboot
Vref
10.5
10
11.25
10.75
0.5
11
11
11.9
11.5
V
V
V
mA
V
V
-
Start Stop Hysteresis
(
)
=
Current Consumption In Operation
Vcc 12 57V
13
12.5
5.25
287.5
0.218
5
~
=
BOOT terminal voltage
Internal voltage reference
Internal oscillation frequency
Over current threshold vol Vth_OCL
SoftStart terminal current
Vcc 12 57V
10
4.75
212.5
0.162
20
~
=
Vcc 12 57V
5
~
=
fosc
Vcc 48V
=
Vcc 48V
=
Vcc 48V
250
0.19
12.5
150
kHz
V
IS/S
Thermal Shut Down Operation Temp T_TSD
C
Recommended Operation Conditions
Item
Input Voltage
Operation Temp
Recommerded Value
Unit
V
C
12 57
~
10 80
~
Outline Dimensions
TAB2
28
15
Company Name
Type No.
Lot No.
+
0.2
-
0.8
1
14
TAB1
=
Detail of A Portion S 12
/
1
21.5MAX
+
0.1
-
A Portion
20.7
+
+
0.1
-
0.1
-
0.4
5.4
0.15
1.0
7.0
0.2 M
Unit : mm
The level of quality of our products shown in this catalog is intended for use in standard applications requiring ordinary reliability. In the case
these products are to be used in equipment or devices for special or specific applications requiring extremely high levels of quality and reliability
in which failure or malfunction of a product may directly affect human life or health, always make sure to obtain confirmation by contacting our
firm in advance. The quality levels of our products are classified in the manner shown below,
Standard Applications
Computers, OA and other office equipment, communication terminal equipment, measuring instruments, AV equipment, amusement equipment,
home appliances, machine tools, personal equipment, industrial robots, etc.
Special Applications
Transportation equipment (automotive, marine, etc.), trunk line communication equipment, traffic signal equipment, fire prevention/anti-theft
equipment, various safety devices, health care equipment, etc.
Specific Applications
Nuclear power control systems, aeronautical equipment, aerospace equipment, submarine relay equipment, devices and systems for preserving
life, etc.
Although efforts are constantly made to improve quality and reliability, please select a product after careful examination so that personal injury,
accidents and social damage can be prevented as a result of deploying measures such as a redundant design, designs that prevent the
spreading of fire, designs that prevent malfunctions and so forth while taking safety into consideration as necessary.
All specifications are subject to change without notice.
*
SHINDENGEN ELECTRIC MFG. CO., LTD.
-
-
RECRUIT Ikebukuro Bldg., 13 23, 1-chome Minami-Ikebukuro, Toshima-ku, Tokyo 171 0022 Japan
-
-
- -
Facsimile : 03 5951 8090
Phone : 03 5951 8106
(
)
2K920 NP
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