MP2364DF-LF-Z Monolithic Power Systems, MP2364DF-LF-Z Datasheet

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MP2364DF-LF-Z

Manufacturer Part Number
MP2364DF-LF-Z
Description
Up/Down Conv Mixer 4.75V to 23V 20-Pin TSSOP EP T/R
Manufacturer
Monolithic Power Systems
Datasheet
1.MP2364DF-LF-Z.pdf (11 pages)

Specifications of MP2364DF-LF-Z

Package
20TSSOP EP

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Company:
Bonase Electronics (HK) Co., Limited Bonase Electronics (HK) Co., Limited
Part Number:
MP2364DF-LF-Z
Manufacturer:
MPS
Quantity:
5 086
Company:
Meier Automation Equipment Co., Limited Meier Automation Equipment Co., Limited
Part Number:
MP2364DF-LF-Z
Manufacturer:
MPS/美国芯源
Quantity:
20 000
The Future of Analog IC Technology
DESCRIPTION
The MP2364 is a dual monolithic step-down
switch mode converter with built-in internal
power MOSFETs. It achieves 1.5A continuous
output current for each output 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. In
shutdown mode, the regulator draws 40µA of
supply current.
The MP2364 requires a minimum number of
readily available standard external components.
EVALUATION BOARD REFERENCE
TYPICAL APPLICATION
MP2364 Rev. 1.6
1/22/2010
3.3V @ 1.5A
Board Number
EV2364DF-01A
OFF ON
12V
22uF
25.5kΩ
5uH
Schottky
10uF
10nF
2A
0.47uF
10kΩ
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
10
7.5kΩ
3.3nF
1
2
3
4
5
6
7
8
9
SSA
NC1
BSA
INA
SWA
PGA
SGA
FBB
COMPB
ENB
2.2”X x 1.6”Y x 0.4”Z
MP2364
16.9kΩ
Dimensions
COMPA
SWB
SGB
PGB
ENA
FBA
BSB
SSB
NC2
INB
© 2010 MPS. All Rights Reserved.
20
19
18
17
16
15
14
13
12
11
10nF
www.MonolithicPower.com
0.47uF
10uF
2A
Schottky
10kΩ
5uH
82pF
22uF
10kΩ
FEATURES
•
•
•
•
•
•
•
•
•
•
•
•
•
•
APPLICATIONS
•
•
•
•
•
“MPS” and “The Future of Analog IC Technology” are Registered Trademarks of
Monolithic Power Systems, Inc.
OFF ON
2.5V @ 1.5A
2.2nF
1.5A Current for Each Output
0.18Ω Internal Power MOSFET Switches
Stable with Low ESR Output Ceramic
Capacitors
Up to 90% Efficiency
40µA Shutdown Mode
Fixed 1.4MHz Frequency
Thermal Shutdown
Cycle-by-Cycle Over Current Protection
Wide 4.75V to 23V Operating Input Range
Each Output Adjustable from 0.92V to 16V
Configurable for Single Output with Double
the Current
Programmable Under Voltage Lockout
Programmable Soft-Start
Available in a TSSOP20 with an Exposed
Pad.
Distributed Power Systems
I/O and Core supplies
DSL Modems
Set top boxes
Cable Modems
Dual 1.5A, 23V, 1.4MHz
100
90
80
70
60
50
Step-Down Converter
0
Efficiency vs
Load Current
V
OUT
=3.3V
LOAD CURRENT (A)
0.5
MP2364
V
OUT
V
1.0
OUT
=2.5V
V
L=5µ H
=5V
IN
=12V
1.5
1

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MP2364DF-LF-Z Summary of contents

Page 1

... Distributed Power Systems • I/O and Core supplies • DSL Modems • Set top boxes • Cable Modems “MPS” and “The Future of Analog IC Technology” are Registered Trademarks of Monolithic Power Systems, Inc. 10uF 10kΩ 20 OFF ON ENA 19 COMPA 82pF 18 10kΩ ...

Page 2

... Part Number* Package MP2364DF TSSOP20F * For Tape & Reel, add suffix –Z (eg. MP2364DF–Z) For Lead Free, add suffix –LF (eg. MP2364DF–LF–Z) MP2364 Rev. 1.6 1/22/2010 MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited. MP2364 — DUAL 1.5A, 23V, 1.4MHz STEP-DOWN CONVERTER ...

Page 3

ELECTRICAL CHARACTERISTICS V = 12V +25°C, unless otherwise noted Parameter Symbol Condition Feedback Voltage V Upper Switch-On Resistance R DS(ON)1 Lower Switch-On Resistance R DS(ON)2 Upper Switch Leakage (4) Current Limit Current Limit Gain Output Current ...

Page 4

PIN FUNCTIONS Pin # Name Description Soft-Start Control for Channel A. 9kΩ output resistance from the pin. Set RC time constant 1 SSA with external capacitor for soft start ramp time. Ramp Time = 2.2 x 9kΩ ...

Page 5

OPERATION The MP2364 is a dual channel current mode regulator. The COMP pin voltage is proportional to the peak inductor current. At the beginning of a cycle, the upper transistor M1 is off, and the lower transistor ...

Page 6

APPLICATION INFORMATION COMPONENT SELECTION The MP2364 has two channels: A and B. The following formulas are used for component selection of both channels. Refer to components with reference “A” for channel A, and components with reference “B” for channel B, ...

Page 7

For simplification, choose the input capacitor whose RMS current rating greater than half of the maximum load current. The input capacitor can be electrolytic, tantalum or ceramic. When using electrolytic or tantalum capacitors, a small, high quality ceramic capacitor, i.e. ...

Page 8

In this case (as shown in Figure 2), a third pole set by the compensation capacitor (C6) and the compensation resistor (R3) compensate the effect of the ESR zero on the loop gain. This pole is located at ...

Page 9

PCB Layout Guide PCB layout is very important to achieve stable operation. Please follow these guidelines and take Figure3 for references. 1) Keep the path of switching current short and minimize the loop area formed by Input cap, high-side MOSFET ...

Page 10

TYPICAL APPLICATION CIRCUITS 12V C1A 10µ F 25V TDK CERAMIC 3.3V @ 1.5A R1A 25.5kΩ 1% C4A 0.47µ F L1A 5µ H SUMIDA CDRH6D28 C2A D1A 22µ F B230A 6.3V OFF ON Figure 4—2.5V @ 1.5A and 3.3V @ 1.5A ...

Page 11

PACKAGE INFORMATION 0.0256(0.650)TYP 0.105 (2.67) 0.118 (3.00) pad width 0.030(0.750) PIN 1 IDENT. 0.150 (3.80) 0.030(0.750) 0.165 (4.19) pad length 0.252 (6.400) 0.260 (6.600) 0.047(1.200) max 0.007(0.190) 0.012(0.300) NOTE: 1) Control dimension is in inches. Dimension in bracket is millimeters. ...

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