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LMZ10501SILEVM 产品设计参考手册 - TI（德州仪器）
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LMZ10501SILEVM数据手册
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0
10
20
30
40
50
60
70
80
0 200 400 600 800 1000
RADIATED EMISSIONS (dBµV/m)
FREQUENCY (MHz)
Evaluation Board
EN 55022 Class B Limit
EN 55022 Class A Limit
C001
10mV/Div
250MHz BW
1µs/Div
COUT = 10F 10V 0805 X5R
VOUT RIPPLE
20
30
40
50
60
70
80
90
100
0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0
EFFICIENCY (%)
LOAD CURRENT (A)
VIN=2.7V
VIN=3.3V
VIN=3.6V
VIN=5V
VIN=5.5V
C001
1.77
1.78
1.79
1.80
1.81
0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0
OUTPUT VOLTAGE (V)
LOAD CURRENT (A)
VIN=2.7V
VIN=3.3V
VIN=3.6V
VIN=5V
VIN=5.5V
C001
User's Guide
SNVU313–December 2011
LMZ10501SIL and LMZ10500SIL SIMPLE SWITCHER
®
Nano Module Evaluation Board
1 Introduction
The LMZ10501 and LMZ10500 Evaluation Board is configured for 1.8V output voltage from 2.7V to 5.5V
input. The resistor voltage divider R
T
and R
B
set the output voltage. The external capacitor C
VC
bypasses
the V
CON
pin and provides additional soft start time. For component selection and device information
details, see the device-specific data sheet. The board features additional component footprints for various
device enabling schemes and AC signal injection terminals for feedback loop measurements. The
evaluation board with its default Bill of Materials offers great EMI performance, complying with the EN
55022 Class B radiated emissions standard.
2 Board Specifications
• V
IN
= 2.7V to 5.5V, V
OUT
= 1.8V (default setting)
• 1A max load (LMZ10501), 650mA max load (LMZ10500)
• 2MHz switching frequency, Low radiated EMI (EN 55022 Class B compliant)
• 4.3 x 4.3 cm (1700 x 1700 mil) PCB size, 4 layers PCB with 1oz copper
3 Typical Performance Characteristics
Efficiency V
OUT
= 1.8V Line and Load Regulation
Output Ripple Radiated EMI
V
IN
= 5V, V
OUT
= 1.8V, I
OUT
= 1A V
IN
= 5V, V
OUT
= 1.8V, I
OUT
= 1A
SIMPLE SWITCHER is a registered trademark of Texas Instruments.
1
SNVU313–December 2011 LMZ10501SIL and LMZ10500SIL SIMPLE SWITCHER
®
Nano Module
Evaluation Board
Submit Documentation Feedback
Copyright © 2011, Texas Instruments Incorporated
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