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PDF LMZ23605 Data sheet ( Hoja de datos )
| Número de pieza | LMZ23605 | |
| Descripción | 5A SIMPLE SWITCHER Power Module | |
| Fabricantes | National Semiconductor | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de LMZ23605 (archivo pdf) en la parte inferior de esta página. Total 22 Páginas | ||
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LMZ23605
April 5, 2011
5A SIMPLE SWITCHER® Power Module with 36V Maximum
Input Voltage
Easy to use 7 pin package
Performance Benefits
■ High efficiency reduces system heat generation
■ Complies with EN55022 Class B (Note 5)
■ Low component count, only 5 external components
■ Low output voltage ripple
■ Uses PCB as heat sink, no airflow required
TO-PMOD 7 Pin Package
30116986
10.16 x 13.77 x 4.57 mm (0.4 x 0.542 x 0.18 in)
θJA = 12°C/W, θJC = 1.9°C/W (Note 6)
RoHS Compliant
Electrical Specifications
■ 30W maximum total output power
■ Up to 5A output current
■ Input voltage range 6V to 36V
■ Output voltage range 0.8V to 6V
■ Efficiency up to 92%
Key Features
■ Integrated shielded inductor
■ Simple PCB layout
■ Frequency synchronization input (650 kHz to 950 kHz)
■ Flexible startup sequencing using external soft-start,
tracking and precision enable
■ Protection against inrush currents and faults such as input
UVLO and output short circuit
■ – 40°C to 125°C junction temperature range
■ Single exposed pad and standard pinout for easy
mounting and manufacturing
■ Fast transient response for powering FPGAs and ASICs
■ Fully enabled for Webench® Power Designer
■ Pin compatible with LMZ22005/LMZ23603/LMZ22003
Applications
■ Point of load conversions from 12V and 24V input rail
■ Time critical projects
■ Space constrained / high thermal requirement applications
■ Negative output voltage applications See AN-2027
System Performance
Efficiency VIN = 12V VOUT = 5.0V
100
90
80
70
60
50
40
30
20
10
0
0
1234
OUTPUT CURRENT (A)
5
4
3
2
1
0
5
30116903
Thermal derating curve
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VIN = 12V VOUT = 5.0V
6
5
4
3
2
1
θJA=12°C/W
0
30 40 50 60 70 80 90 100 110 120 130
AMBIENT TEMPERATURE (°C)
30116989
Radiated EMI (EN 55022)
of Demo Board (See AN–2125)
50
45
40
35
30
25
20
15
10
5
0
0
Class A Limit
Class B Limit
Horiz Peak
Horiz Quasi-peak
200 400 600 800 1000
FREQUENCY (MHz)
30116995
© 2011 National Semiconductor Corporation 301169
www.national.com
Datasheet pdf - http://www.DataSheet4U.co.kr/
1 page  
Symbol Parameter
PERFORMANCE PARAMETERS(Note 7)
ΔVO Output voltage ripple
ΔVO/ΔVIN
ΔVO/ΔIOUT
η
η
η
η
Line regulation
Load regulation
Peak efficiency
Full load efficiency
Peak efficiency
Full load efficiency
Conditions
Min
(Note 3)
Typ
(Note 4)
Max
(Note 3)
Units
Cout = 220uF w/ 7 milliohm ESR +
100uF X7R + 2 x 0.047uF BW@ 20 MHz
VIN = 12V to 36V, IO= 0.001A
VIN = 12V, IO= 0.001A to 5A
VIN = 12V VO = 3.3V IO = 1A
VIN = 12V VO = 3.3V IO = 5A
VIN = 24V VO = 3.3V IO = 2A
VIN = 24V VO = 3.3V IO = 5A
9
±0.02
1
86
81.5
80
76
mV PP
%
mV/A
%
%
%
%
Note 1: Absolute Maximum Ratings are limits beyond which damage to the device may occur. Operating Ratings are conditions under which operation of the
device is intended to be functional. For guaranteed specifications and test conditions, see the Electrical Characteristics.
Note 2: The human body model is a 100pF capacitor discharged through a 1.5 kΩ resistor into each pin. Test method is per JESD-22-114.
Note 3: Min and Max limits are 100% production tested at 25°C. Limits over the operating temperature range are guaranteed through correlation using Statistical
Quality Control (SQC) methods. Limits are used to calculate National’s Average Outgoing Quality Level (AOQL).
Note 4: Typical numbers are at 25°C and represent the most likely parametric norm.
Note 5: EN 55022:2006, +A1:2007, FCC Part 15 Subpart B: 2007. See AN-2125 and layout for information on device under test. Vin = 24V Vo = 3.3V Io = 5A
Note 6: Theta JA measured on a 3.5” x 3.5” four layer board, with three ounce copper on outer layers and two ounce copper on inner layers, sixty 10 mil thermal
vias, no air flow, and 1W power dissipation. Refer to application note layout diagrams.
Note 7: Refer to BOM in Table 1.
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5 www.national.com
Datasheet pdf - http://www.DataSheet4U.co.kr/
5 Page 
Efficiency 1.5V output @ 85°C ambient
80
70
60
50
40
30
20
0
6 Vin
9 Vin
12 Vin
20 Vin
24 Vin
30 Vin*
36 Vin*
1234
OUTPUT CURRENT (A)
5
30116936
Efficiency 1.2V output @ 85°C ambient
80
70
60
50
40
30
20
0
6 Vin
9 Vin
12 Vin
20 Vin
24 Vin
30 Vin*
36 Vin*
1234
OUTPUT CURRENT (A)
5
30116938
Efficiency 1.0V output @ 85°C ambient
75
65
55
45
35
25
15
0
6 Vin
9 Vin
12 Vin
20 Vin
24 Vin*
30 Vin*
36 Vin*
1234
OUTPUT CURRENT (A)
5
30116940
Dissipation 1.5V output @ 85°C ambient
8 36 Vin*
7
30 Vin*
24 Vin
20 Vin
6 12 Vin
9 Vin
5 6 Vin
4
3
2
1
0
012345
OUTPUT CURRENT (A)
30116937
Dissipation 1.2V output @ 85°C ambient
8 36 Vin*
7
30 Vin*
24 Vin
20 Vin
6 12 Vin
9 Vin
5 6 Vin
4
3
2
1
www.DataSheet.net/
0
0
1234
OUTPUT CURRENT (A)
5
30116939
Dissipation 1.0V output @ 85°C ambient
8 36 Vin*
7
30 Vin*
24 Vin*
20 Vin
6 12 Vin
9 Vin
5 6 Vin
4
3
2
1
0
012345
OUTPUT CURRENT (A)
30116941
11
www.national.com
Datasheet pdf - http://www.DataSheet4U.co.kr/
11 Page | ||
| Páginas | Total 22 Páginas | |
| PDF Descargar | [ Datasheet LMZ23605.PDF ] | |
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