MP1470 – SYNCHRONOUS, STEP-DOWN CONVERTER WITH INTERNAL MOSFETS
MP1470 Rev. 1.02 www.MonolithicPower.com 13
8/27/2013 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2013 MPS. All Rights Reserved.
Design Example
Below is a design example following the
application guidelines for the specifications:
Table 2: Design Example
V
IN
12V
V
OUT
3.3V
I
O
2A
The detailed application schematics are shown
in Figures 9 through 13. The typical
performance and circuit waveforms have been
shown in the Typical Performance
Characteristics section. For more device
applications, please refer to the related
Evaluation Board Datasheets.
MP1470 – SYNCHRONOUS, STEP-DOWN CONVERTER WITH INTERNAL MOSFETS
MP1470 Rev. 1.02 www.MonolithicPower.com 14
8/27/2013 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2013 MPS. All Rights Reserved.
TYPICAL APPLICATION CIRCUITS
25V
C1
C6
25V
GND
GND
GND
GND
GND
GND
GND
EN
VOUT
VIN
100k
R5
NS
R6
C4
C2A
NS
C2
NS
C3
L1
SW
NS
R3
40.2k
R1
7.68k
R2
GND
GND
GND
GND
75k
R7
5V/2A
3
5
6
2
4
1
NS
C5
0R
R4
MP1470
BST
SW
IN
GND
FBEN
Figure 9: 12Vin, 5V/2A
25V
C1
C6
25V
GND
GND
GND
GND
GND
GND
GND
EN
VOUT
VIN
100k
R5
NS
R6
C4
C2A
NS
C2
NS
C3
L1
SW
NS
R3
40.2k
R1
13k
R2
GND
GND
GND
GND
75k
R7
3.3V/2A
MP1470
3
5
6
2
4
1
BST
SW
IN
GND
FBEN
NS
C5
0R
R4
Figure 10: 12Vin, 3.3V/2A
25V
C1
C6
25V
GND
GND
GND
GND
GND
GND
GND
EN
VOUT
VIN
100k
R5
NS
R6
C4
C2A
NS
C2
NS
C3
L1
SW
NS
R3
40.2k
R1
19.1k
R2
GND
GND
GND
GND
100k
R7
2.5V/2A
MP1470
3
5
6
2
4
1
BST
SW
IN
GND
FB
EN
NS
C5
0R
R4
Figure 11: 12Vin, 2.5V/2A
MP1470 – SYNCHRONOUS, STEP-DOWN CONVERTER WITH INTERNAL MOSFETS
MP1470 Rev. 1.02 www.MonolithicPower.com 15
8/27/2013 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2013 MPS. All Rights Reserved.
25V
C1
C6
25V
GND
GND
GND
GND
GND
GND
GND
EN
VOUT
VIN
100k
R5
NS
R6
C4
C2A
NS
C2
NS
C3
L1
SW
NS
R3
40.2k
R1
32.4k
R2
GND
GND
GND
GND
120k
R7
1.8V/2A
MP1470
3
5
6
2
4
1
BST
SW
IN
GND
FBEN
NS
C5
0R
R4
Figure 12: 12Vin, 1.8V/2A
25V
C1
C6
25V
GND
GND
GND
GND
GND
GND
GND
EN
VOUT
VIN
100k
R5
NS
R6
C4
C2A
NS
C2
NS
C3
L1
SW
NS
R3
20.5k
R1
41.2k
R2
GND
GND
GND
GND
249k
R7
1.2V/2A
MP1470
3
5
6
2
4
1
BST
SW
IN
GND
FBEN
NS
C5
0R
R4
Figure 13: 12Vin, 1.2V/2A

MP1470GJ-Z

Mfr. #:
Manufacturer:
Monolithic Power Systems (MPS)
Description:
Switching Voltage Regulators 2A, 16V, 500kHz Sync, Stp-Dwn Cnvrtr
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
T/T Paypal Visa MoneyGram Western Union

Products related to this Datasheet