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參數(shù)資料
| 型號(hào)： | LM3218SE |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | SWITCHING REGULATOR, DSO8 |
| 封裝： | LTCC-8 |
| 文件頁(yè)數(shù)： | 11/16頁(yè) |
| 文件大小： | 4709K |
| 代理商： | LM3218SE |
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System Characteristics
The following spec table entries are guaranteed by design providing the component
values in the typical application circuit are used (L = LTCC Inductor, 2.6 H; DCR = 150 m
; C
IN = 10 F, 6.3V, 0603, TDK
C1608X5R0J106K; C
OUT = 4.7 F, 6.3V, 0603, C1608X5R0J475M). These parameters are not guaranteed by production
testing.
Min and Max values are specified over the ambient temperature range T
A = 30°C to 85°C. Typical values are specified
at PV
IN = VDD = EN = 3.6V and TA = 25°C unless otherwise specified.
Symbol
Parameter
Conditions
Min
Typ
Max
Units
T
RESPONSE
(Rise Time)
Time for V
OUT to rise from 0.8V
to 3.4V (to reach 3.35V)
V
IN = 4.2V
R
LOAD = 5.5
25
40
s
T
RESPONSE
(Fall Time)
Time for V
OUT to fall from 3.4V to
0.8V
V
IN = 4.2V
R
LOAD = 15
35
45
s
C
CON
V
CON input capacitance
V
CON = 1V, VIN=2.7V to 5.5V
Test frequency = 100 KHz
5
10
pF
C
EN
EN input capacitance
EN = 2V, V
IN= 2.7V to 5.5V
Test frequency = 100 KHz
5
10
pF
V
CON
(S>L)
R
DSON(P) management threshold Threshold for PFET RDSON(P) to change
from 960 m
to 140 m
0.39
0.42
0.45
V
CON
(L>S)
R
DSON(P) management threshold Threshold for PFET RDSON(P) to change
from 140 m
to 960 m
0.37
0.40
0.43
V
I
OUT, MAX
Maximum Output Current
V
IN = 2.7V to 5.5V
V
CON = 0.45V to 1.44V
650
mA
V
IN = 2.7V to 5.5V
V
CON = 0.32V to 0.45V
400
mA
Linearity
Linearity in control range 0.32V
to 1.44V
V
IN = 3.9V (Note 14)
Monotonic in nature
3
+3
%
50
+50
mV
T
ON
Turn on time
(time for output to reach 97% of
final value after Enable low-to-
high transition)
EN = Low to High
V
IN = 4.2V, VOUT = 3.4V,
I
OUT ≤ 1mA
40
60
s
η
Efficiency
V
IN = 3.6V, VOUT = 0.8V
I
OUT = 90mA
81
%
V
IN = 3.6V, VOUT = 1.5V
I
OUT = 150mA
89
%
V
IN = 3.9V, VOUT = 3.4V
I
OUT = 400 mA
95
%
V
O_ripple
Ripple voltage at
no pulse skip condition
V
IN = 2.7V to 4.5V, VOUT = 0.8V to 3.4V,
Differential voltage = V
IN - VOUT > 1V,
I
OUT = 0 mA to 400 mA (Note 12)
10
mVp-p
Ripple voltage at
pulse skip condition
V
IN = 5.5V to dropout, VOUT = 3.4V,
I
OUT = 650 mA (Note 12)
60
mVp-p
Line_tr
Line transient response
V
IN = 3.6V to 4.2V,
T
R = TF = 10 s,
V
OUT = 0.8V, IOUT = 100 mA
50
mVpk
Load_tr
Load transient response
V
IN = 3.1/3.6/4.5V, VOUT = 0.8V,
I
OUT = 50 mA to 150 mA
50
mVpk
Max Duty
cycle
Maximum duty cycle
100
%
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LM3218
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相關(guān)代理商/技術(shù)參數(shù) |
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|---|---|
| LM3218SEE/NOPB | 功能描述:DC/DC 開關(guān)控制器 RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK |
| LM3218SEX | 制造商:Texas Instruments 功能描述:Conv DC-DC Single Step Down 2.7V to 5.5V 8-Pin LTCC T/R |
| LM3218SEX/NOPB | 功能描述:DC/DC 開關(guān)控制器 RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK |
| LM321AH | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:LM221/LM321 Precision Preamplifiers |
| LM321H | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:LM221/LM321 Precision Preamplifiers |
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