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부품번호 | LMZ10504 기능 |
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기능 | Power Module | ||
제조업체 | National Semiconductor | ||
로고 | |||
전체 22 페이지수
DataSheet.in
LMZ10504
March 30, 2010
4A SIMPLE SWITCHER® Power Module with 5.5V Maximum
Input Voltage
Easy to Use 7 Pin Package
Performance Benefits
TO-PMOD 7 Pin Package
300882a4
10.16 x 13.77 x 4.57 mm (0.4 x 0.39 x 0.18 in)
θJA = 20°C/W, θJC = 1.9°C/W (Note 1)
RoHS Compliant
■ Operates at high ambient temperatures
■ High efficiency up to 96% reduces system heat generation
■ Low radiated emissions (EMI) complies with EN55022
class B standard (Note 2)
■ Passes 10V/m radiated immunity EMI test standard
EN61000 4-3
■ Low output voltage ripple of 10 mV allows for powering
noise-sensitive transceiver and signaling ICs
■ Fast transient response for powering FPGAs and ASICs
System Performance
Current Derating (VOUT = 3.3V)
Electrical Specifications
■ 20W maximum total output power
■ Up to 4A output current
■ Input voltage range 2.95V to 5.5V
■ Output voltage range 0.8V to 5V
■ ±1.63% feedback voltage accuracy over temperature
■ Efficiency up to 96%
Key Features
■ Integrated shielded inductor
■ Flexible startup sequencing using external soft-start,
tracking, and precision enable
■ Protection against in-rush currents and faults such as input
UVLO and output short-circuit
■ -40°C to +125°C junction temperature operating range
■ Single exposed pad and standard pinout for easy
mounting and manufacturing
■ Pin-to-pin compatible with
LMZ10503 (3A/15W max)
LMZ10505 (5A/25W max)
■ Fully enable for WEBENCH® and Power Designer
300882a5
Efficiency (VOUT = 3.3V)
300882a6
Radiated Emissions (EN 55022, Class B)
Applications
■ Point-of-load conversions from 3.3V and 5V rails
■ Space constrained applications
■ Extreme temperatures/no air flow environments
■ Noise sensitive applications (i.e. transceiver, medical)
300882a7
Note 1: θ JA measured on a 2.25” x 2.25” (5.8 cm x 5.8 cm) four layer board. Refer to PCB Layout Diagrams or Evaluation
Board Application Note: AN-2022.
Note 2: EN 55022:2006, +A1:2007, FCC Part 15 Subpart B: 2007. See Figure 5 and layout for information on device under
test.
© 2010 National Semiconductor Corporation 300882
www.national.com
DataSheet.in
Electrical Characteristics Specifications with standard typeface are for TJ = 25°C only; limits in bold face type
apply over the operating junction temperature range TJ of -40°C to 125°C. Minimum and maximum limits are guaranteed through
test, design, or statistical correlation. Typical values represent the most likely parametric norm at TJ = 25°C, and are provided for
reference purposes only. VIN = VEN = 3.3V, unless otherwise indicated in the conditions column.
Symbol
Parameter
Conditions
Min
(Note 5)
Typ Max Units
(Note 6) (Note 5)
PERFORMANCE PARAMETERS
ΔVOUT
Output Voltage Ripple
Refer to Table 3
VOUT = 2.5V
Bandwidth Limit = 2 MHz
10 mVpk-pk
ΔVOUT
Output Voltage Ripple
Refer to Table 5
Bandwidth Limit = 20 MHz
5 mVpk-pk
ΔVFB / VFB
Feedback Voltage Line Regulation
ΔVOUT / VOUT Output Voltage Line Regulation
ΔVFB / VFB
ΔVOUT / VOUT
Feedback Voltage Load Regulation
Output Voltage Load Regulation
Efficiency
ΔVIN = 2.95V to 5.5V
IOUT = 0A
ΔVIN = 2.95V to 5.5V
IOUT = 0A, VOUT = 2.5V
IOUT = 0A to 4A
IOUT = 0A to 4A
VOUT = 2.5V
0.04 %
0.04 %
0.25 %
0.25 %
VOUT = 3.3V
VOUT = 2.5V
η Peak Efficiency (1A) VIN = 5V
VOUT = 1.8V
VOUT = 1.5V
VOUT = 1.2V
VOUT = 0.8V
VOUT = 2.5V
VOUT = 1.8V
η
Peak Efficiency (1A) VIN = 3.3V
VOUT = 1.5V
VOUT = 1.2V
VOUT = 0.8V
VOUT = 3.3V
VOUT = 2.5V
η
Full Load Efficiency (4A) VIN = 5V
VOUT = 1.8V
VOUT = 1.5V
VOUT = 1.2V
VOUT = 0.8V
VOUT = 2.5V
VOUT = 1.8V
η
Full Load Efficiency (4A) VIN = 3.3V
VOUT = 1.5V
VOUT = 1.2V
VOUT = 0.8V
96.1
94.8
93.1
92
90.4
86.8
95.7
94.1
93.0
91.6
88.3
94.1
92.4
90.0
88.3
86.1
80.8
91.4
90.0
87.2
84.9
79.3
%
%
%
%
Note 1: θ JA measured on a 2.25” x 2.25” (5.8 cm x 5.8 cm) four layer board, with one ounce copper, thirty six 10mil thermal vias, no air flow, and 1W power
dissipation. Refer to PCB Layout Diagrams or Evaluation Board Application Note: AN-2022.
Note 2: EN 55022:2006, +A1:2007, FCC Part 15 Subpart B: 2007. See Table 9 and layout for information on device under test.
Note 3: 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 4: The human body model is a 100 pF capacitor discharged through a 1.5 kΩ resistor into each pin. Test method is per JESD22-AI14S.
Note 5: Min and Max limits are 100% production tested at an ambient temperature (TA) of 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 6: Typical numbers are at 25°C and represent the most likely parametric norm.
www.national.com
4
4페이지 DataSheet.in
Current Derating
VIN = 5V, θJA = 20°C / W
Current Derating
VIN = 3.3V, θJA = 20°C / W
300882b3
Radiated Emissions (EN 55022, Class B)
VIN = 5V, VOUT = 2.5V, IOUT = 4A
Evaluation Board
Startup
VOUT = 2.5V, IOUT = 0A
300882b4
Pre-biased Startup
VOUT = 2.5V, IOUT = 0A
30088299
30088256
30088255
7
www.national.com
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DataSheet.kr | 2020 | 연락처 | 링크모음 | 검색 | 사이트맵 |