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LMZ10501 の電気的特性と機能

LMZ10501のメーカーはNational Semiconductorです、この部品の機能は「1A SIMPLE SWITCHER Nano Module」です。


製品の詳細 ( Datasheet PDF )

部品番号 LMZ10501
部品説明 1A SIMPLE SWITCHER Nano Module
メーカ National Semiconductor
ロゴ National Semiconductor ロゴ 




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LMZ10501 Datasheet, LMZ10501 PDF,ピン配置, 機能
LMZ10501
October 5, 2011
1A SIMPLE SWITCHER® Nano Module with 5.5V Maximum
Input Voltage
8 Pin LLP-Footprint Package
System Performance
(Quick Overview Links: VOUT = 1.2V, 1.8V, 2.5V, 3.3V)
SE08A 8 Pin Package
30124731
3.0 x 2.5 x 1.2 mm (0.118 x 0.098 x 0.047 in)
RoHS Compliant
Electrical Specifications
Up to 1A output current
Input voltage range 2.7V to 5.5V
Output voltage range 0.6V to 3.6V
Efficiency up to 95%
Key Features
Integrated inductor
Miniature form factor (3.0 mm x 2.5 mm x 1.2 mm)
8-pin LLP footprint
-40°C to 125°C junction temperature range
Adjustable output voltage
2.0MHz fixed PWM switching frequency
Integrated compensation
Soft start function
Current limit protection
Thermal shutdown protection
Input voltage UVLO for power-up, power-down, and
brown-out conditions
Only 5 external components — resistor divider and 3
ceramic capacitors
Applications
Point of load conversions from 3.3V and 5V rails
Space constrained applications
Low output noise applications
Performance Benefits
Small solution size
Low output voltage ripple
Easy component selection and simple PCB layout
High efficiency reduces system heat generation
© 2011 National Semiconductor Corporation 301247
Typical Efficiency at VIN = 3.6V
100
90
80
70
60
50 VOUT = 1.2V
40
VOUT = 1.8V
VOUT = 2.5V
VOUT = 3.3V
30
20
0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0
LOAD CURRENT (A)
30124730
Output Voltage Ripple
VIN = 5.0V, VOUT = 1.8V, IOUT = 1A
30124733
Radiated EMI (CISPR22)
VIN = 5.0V, VOUT = 1.8V, IOUT = 1A
80 Emissions (Evaluation Board)
70
EN 55022 Class B Limit
EN 55022 Class A Limit
60
50
40
30
20
10
0
0 200 400 600 800 1000
FREQUENCY (MHz)
30124732
www.national.com

1 Page





LMZ10501 pdf, ピン配列
Absolute Maximum Ratings (Note 1)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
VIN, VREF to SGND
PGND to SGND
EN, FB, VCON
VOUT
Junction Temperature (TJ-MAX)
Storage Temperature Range
Maximum Lead Temperature
ESD Susceptibility(Note 2)
−0.2V to +6.0V
−0.2V to +0.2V
(SGND −0.2V)
to (VIN +0.2V)
w/6.0V max
(PGND −0.2V)
to (VIN +0.2V)
w/6.0V max
+150°C
−65°C to +150°C
+260°C
±2kV
Operating Ratings (Note 1)
Input Voltage Range
Recommended Load Current
Junction Temperature (TJ) Range
2.7V to 5.5V
0 mA to 1000 mA
−40°C to +125°C
Thermal Properties
Junction-to-Ambient Thermal
Resistance (θJA), SE08A Package
(Note 3)
120°C/W
Electrical Characteristics (Note 4) 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. Unless otherwise stated the following conditions apply: VIN = 3.6V, VEN = 1.2V.
Symbol
Parameter
Conditions
Min Typ
Max
(Note 4) (Note 5) (Note 4)
Units
SYSTEM PARAMETERS
VREF x GAIN
Reference voltage x VCON to VIN = VEN = 5.5V, VCON = 1.44V
FB Gain
5.7575
5.875
5.9925
V
GAIN
VINUVLO
VINUVLO
ISHDN
VCON to FB Gain
VIN rising threshold
VIN falling theshold
Shutdown supply current
VIN = 5.5V, VCON = 1.44V
VIN = 3.6V, VEN = 0.5V
(Note 6)
2.4375
2.5
2.4
2.25
11
2.5750
18
V/V
V
V
µA
Iq
RDROPOUT
I LIM
FOSC
VIH,ENABLE
VIL,ENABLE
TSD
TSD-HYST
DMAX
TON-MIN
θJA
DC bias current into VIN
VIN to VOUTresistance
DC Output Current Limit
Internal oscillator frequency
VIN = 5.5V, VCON = 1.6V, IOUT = 0A
IOUT = 200 mA
VCON = 0.24V (Note 7)
Enable logic HIGH voltage
Enable logic LOW voltage
Thermal shutdown
Rising Threshold
Thermal shutdown hysteresis
Maximum duty cycle
Minimum on-time
Package Thermal Resistance 20mm x 20mm board
2 layers, 2 oz copper, 0.5W, no
1125
1.75
1.2
6.5
285
1350
2.0
150
20
100
50
118
8.5
425
2.25
0.5
mA
mΩ
mA
MHz
V
V
°C
°C
%
ns
airlow
15mm x 15mm board
2 layers, 2 oz copper, 0.5W, no
airlow
132
°C/W
10mm x 10mm board
2 layers, 2 oz copper, 0.5W, no
157
airlow
3 www.national.com


3Pages


LMZ10501 電子部品, 半導体
Typical Performance Characteristics
Unless otherwise specified the following conditions apply: VIN = 3.6V, TA = 25°C
Dropout Voltage vs Load Current and Input Voltage
0.35
VIN = 2.7V
0.30 VIN = 3.3V
VIN = 3.6V
0.25 VIN = 4.0V
0.20
0.15
0.10
0.05
0.00
0.0
0.2 0.4 0.6 0.8
LOAD CURRENT (A)
1.0
30124749
Thermal Derating VOUT = 1.8V, θJA = 120°C/W
1.2
VIN = 3.3V
1.0
VIN = 3.6V
VIN = 5.0V
VIN = 5.5V
0.8
0.6
0.4
0.2
0.0
60 70 80 90 100 110 120 130
AMBIENT TEMPERATURE (°C)
30124743
Thermal Derating VOUT = 1.2V, θJA = 120°C/W
1.2
VIN = 3.3V
1.0
VIN = 3.6V
VIN = 5.0V
VIN = 5.5V
0.8
0.6
0.4
0.2
0.0
60 70 80 90 100 110 120 130
AMBIENT TEMPERATURE (°C)
30124744
Thermal Derating VOUT = 2.5V, θJA = 120°C/W
1.2
VIN = 3.3V
1.0
VIN = 3.6V
VIN = 5.0V
VIN = 5.5V
0.8
0.6
0.4
0.2
0.0
60 70 80 90 100 110 120 130
AMBIENT TEMPERATURE (°C)
30124742
www.national.com
6

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共有リンク

Link :


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