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MP2467DN-LF-Z

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P17
MP2467 – 2.5A, 36V, 500kHz STEP-DOWN CONVERTER
MP2467 Rev. 1.11 www.MonolithicPower.com 4
1/24/2014 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2014 MPS. All Rights Reserved.
PIN FUNCTIONS
Pin # Name Description
1 SW
Switch Node. This is the output from the high-side switch. A low V
f
Schottky rectifier to ground
is required. The rectifier must be close to the SW pins to reduce switching spikes.
2 EN
Enable Input. Pulling this pin below the specified threshold shuts the chip down. Pulling it
above the specified threshold or leaving it floating enables the chip.
3 COMP
Compensation. This node is the output of the error amplifier. Control loop frequency
compensation is applied to this pin.
4 FB
Feedback. This is the input to the error amplifier. An external resistive divider connected
between the output and GND is compared to the internal +0.8V reference to set the regulation
voltage.
5 GND
Ground. It should be connected as close as possible to the output capacitor avoiding the high
current switch paths.
6 RSET Internal Bias Setting. Connect a 200k resistor to this pin.
7 VIN
Input Supply. This supplies power to all the internal control circuitry, including bootstrap
regulator and the high-side switch. A decoupling capacitor to ground must be placed close to
this pin to minimize switching spikes.
8 BST
Bootstrap. This is the positive power supply for the internal floating high-side MOSFET driver.
Connect a bypass capacitor between this pin and SW pin.
MP2467 – 2.5A, 36V, 500kHz STEP-DOWN CONVERTER
MP2467 Rev. 1.11 www.MonolithicPower.com 5
1/24/2014 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2014 MPS. All Rights Reserved.
TYPICAL PERFORMANCE CHARACTERISTICS
V
IN
= 12V, C1 = 10µF, C2 = 22µF, L = 10µH and T
A
= +25°C, unless otherwise noted.
Efficiency vs.
Load Current
100
90
80
70
60
50
40
EFFICIENCY (%)
0 0.5 1.0 1.5 2.0 2.5
LOAD CURRENT (A)
V
OUT
=2.5V
V
IN
=12V
V
IN
=24V
V
SW
10V/div.
V
OUT
AC Coupled
10mV/div.
I
L
1A/div.
V
SW
10V/div.
V
OUT
AC Coupled
10mV/div.
I
L
1A/div.
1 v.
Steady State
V
OUT
=5V, I
OUT
=0.1A
Steady State
V
OUT
=5V, I
OUT
=1A
Efficiency vs.
Load Current
100
90
80
70
60
50
40
EFFICIENCY (%)
0 0.5 1.0 1.5 2.0 2.5
LOAD CURRENT (A)
V
OUT
=5V
V
IN
=24V
V
IN
=12V
Steady State
V
OUT
=5V, I
OUT
=2A
V
SW
10V/div.
V
OUT
AC Coupled
10mV/div.
I
L
2A/div.
2 v.
2
v.
MP2467 – 2.5A, 36V, 500kHz STEP-DOWN CONVERTER
MP2467 Rev. 1.11 www.MonolithicPower.com 6
1/24/2014 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2014 MPS. All Rights Reserved.
TYPICAL PERFORMANCE CHARACTERISTICS (continued)
V
IN
= 12V, C1 = 10µF, C2 = 22µF, L = 10µH and T
A
= +25°C, unless otherwise noted.
1ms/div.
Startup
V
OUT
= 5V, I
OUT
= 0.1A
1ms/div.
Shutdown
V
OUT
= 5V, I
OUT
= 0.1A
1ms/div.
Startup
V
OUT
= 5V, I
OUT
= 1A
200μ s/div.
Shutdown
V
OUT
= 5V, I
OUT
= 1A
1ms/div.
Startup
V
OUT
= 5V, I
OUT
= 2A
V
OUT
2V/div.
I
L
1A/div.
V
SW
10V/div.
V
EN
5V/div.
V
OUT
2V/div.
I
L
1A/div.
V
SW
10V/div.
V
EN
5V/div.
V
OUT
2V/div.
I
L
1A/div.
V
SW
10V/div.
V
EN
5V/div.
V
OUT
2V/div.
I
L
1A/div.
V
SW
10V/div.
V
EN
5V/div.
V
OUT
2V/div.
I
L
2A/div.
V
SW
10V/div.
V
EN
5V/div.
V
OUT
2V/div.
I
L
1A/div.
200μ s/div.
100μ s/div.
Short Circuit Entry
V
OUT
= 5V, I
OUT
= 0.1A to Short
200μ s/div.
Short Circuit Recovery
V
OUT
= 5V, I
OUT
= Short to 0.1A
Shutdown
V
OUT
= 5V, I
OUT
= 2A
V
OUT
2V/div.
I
L
1A/div.
V
OUT
2V/div.
I
L
2A/div.
V
SW
10V/div.
V
EN
5V/div.
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P17

MP2467DN-LF-Z

Mfr. #:
Buy MP2467DN-LF-Z
Manufacturer:
Monolithic Power Systems (MPS)
Description:
Switching Voltage Regulators 2.5A 36V .5MHz Nonsync Step-Down
Lifecycle:
New from this manufacturer.
Delivery:
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