DataSheet39.com

What is MP1593?

This electronic component, produced by the manufacturer "MPS", performs the same function as "Step Down Converter".


MP1593 Datasheet PDF - MPS

Part Number MP1593
Description Step Down Converter
Manufacturers MPS 
Logo MPS Logo 


There is a preview and MP1593 download ( pdf file ) link at the bottom of this page.





Total 11 Pages



Preview 1 page

No Preview Available ! MP1593 datasheet, circuit

Monolithic Power Systems
General Description
The MP1593 is a step-down regulator with an
internal Power MOSFET. It achieves 3A
continuous output current over a wide input
supply range with excellent load and line
regulation.
Current mode operation provides fast transient
response and eases loop stabilization.
Fault condition protection includes cycle-by-cycle
current limiting and thermal shutdown.
Adjustable soft-start reduces the stress on the
input source at turn-on. In shutdown mode the
regulator draws 20µA of supply current.
The MP1593 requires a minimum number of
readily available external components to
complete a 3A step down DC to DC converter
solution.
Ordering Information
Part Number
MP1593DN
Package
SOIC8 w/ Exposed
Paddle
Temperature
-40 to + 85°C
For Tape & Reel use suffix - Z (e.g. MP1593DN-Z)
MP1593
3A, 28V
Step Down Converter
PRELIMINARY
Features
3A Output Current
Programmable Soft-Start
100mInternal Power MOSFET Switch
Stable with Low ESR Output Ceramic
Capacitors
Up to 95% Efficiency
20µA Shutdown Mode
Fixed 385KHz Frequency
Thermal Shutdown
Cycle-by-Cycle Over Current Protection
Wide 4.75 to 28V Operating Input
Range
Output Adjustable From 1.22
Under Voltage Lockout
Available in 8 pin SOIC Package
Applications
Distributed Power Systems
Battery Charger
Pre-Regulator for Linear Regulators
Typical Application Circuit
INPUT
4.75to28V
IN BS
SW
EN M P1593
omSS
.c GND
FB
COMP
OUTPUT
2.5V,3A
www.datasheet4uMP1593 Rev 1.0_02/27/04
www.monolithicpower.com
1

line_dark_gray
MP1593 equivalent
Monolithic Power Systems
MP1593
3A, 28V
Step Down Converter
PRELIMINARY
INPUT
4.75 to 28V
C1
10µF/35V
OPEN
NOT USED
C5
10nF
IN BS
SW
EN MP1593
SS
GND
FB
COMP
C6
Open
C3
3.9nF
R3
3.9K
L1
15µH
D1
R1
10.5K
R2
10K
OUTPUT
2.5V/3A
C2
22µF/10V
Ceramic
Figure 2: MP1593 with Murata 22µF, 10V Ceramic Output Capacitor
Application Information
Setting the Output Voltage
The output voltage is set using a resistive
voltage divider from the output voltage to FB
(see Figure 2). The voltage divider divides the
output voltage down by the ratio:
VFB = VOUT * R2 / (R1 + R2)
Thus the output voltage is:
VOUT = 1.222 * (R1 + R2) / R2
R2 can be as high as 100K, but a typical
value is 10K. Using that value, R1 is
determined by:
R1 = 8.18 * (VOUT – 1.222) (K)
For example, for a 3.3V output voltage, R2 is
10K, and R1 is 17K.
Inductor
The inductor is required to supply constant
current to the output load while being driven by
the switched input voltage. A larger value
inductor results in less ripple current that in
turn results in lower output ripple voltage.
However, the larger value inductor has a larger
physical size, higher series resistance, and/or
lower saturation current. Choose an inductor
that does not saturate under the worst-case
load conditions. A good rule for determining
the inductance is to allow the peak-to-peak
ripple current in the inductor to be
approximately 30% of the maximum load
current. Also, make sure that the peak
inductor current (the load current plus half the
peak-to-peak inductor ripple current) is below
the 3.3A minimum current limit. The
inductance value can be calculated by the
equation:
L = (VOUT) * (VIN-VOUT) / (VIN * f * I)
Where VOUT is the output voltage, VIN is the
input voltage, f is the switching frequency, and
I is the peak-to-peak inductor ripple current.
Table 2 lists a number of suitable inductors
from various manufacturers.
MP1593 Rev 1.0_02/27/04
www.monolithicpower.com
5


line_dark_gray

Preview 5 Page


Part Details

On this page, you can learn information such as the schematic, equivalent, pinout, replacement, circuit, and manual for MP1593 electronic component.


Information Total 11 Pages
Link URL [ Copy URL to Clipboard ]
Download [ MP1593.PDF Datasheet ]

Share Link :

Electronic Components Distributor


An electronic components distributor is a company that sources, stocks, and sells electronic components to manufacturers, engineers, and hobbyists.


SparkFun Electronics Allied Electronics DigiKey Electronics Arrow Electronics
Mouser Electronics Adafruit Newark Chip One Stop


Featured Datasheets

Part NumberDescriptionMFRS
MP1591The function is Step Down Converter. MPSMPS
MP1593The function is Step Down Converter. MPSMPS

Semiconductors commonly used in industry:

1N4148   |   BAW56   |   1N5400   |   NE555   |  

LM324   |   BC327   |   IRF840  |   2N3904   |  



Quick jump to:

MP15     1N4     2N2     2SA     2SC     74H     BC     HCF     IRF     KA    

LA     LM     MC     NE     ST     STK     TDA     TL     UA    



Privacy Policy   |    Contact Us     |    New    |    Search