參數(shù)資料
型號： LTC1911EMS8-1.8
廠商： LINEAR TECHNOLOGY CORP
元件分類： 穩(wěn)壓器
英文描述： Low Noise, High Efficiency, Inductorless Step-Down DC/DC Converter
中文描述： SWITCHED CAPACITOR REGULATOR, 1800 kHz SWITCHING FREQ-MAX, PDSO8
封裝： PLASTIC, MSOP-8
文件頁數(shù)： 2/12頁
文件大?。?/td> 200K
代理商： LTC1911EMS8-1.8
2
LTC1911-1.5/LTC1911-1.8
sn1911 1911is
PARAMETER
V
IN
Operating Voltage
V
OUT
CONDITIONS
MIN
2.7
1.44
1.73
TYP
MAX
5.5
1.56
1.87
350
20
UNITS
G
V
V
V
LTC1911-1.5, 0mA
≤
I
OUT
≤
250mA, V
IN
= 2.7V to 5.5V
LTC1911-1.8, 0mA
≤
I
OUT
≤
250mA, V
IN
= 2.7V to 5.5V
I
OUT
= 0mA, V
IN
= 2.7V to 5.5V
SS/SHDN = 0V, V
IN
= 2.7V to 5.5V
I
OUT
= 10mA
I
OUT
= 250mA
V
OUT
= 0V
Oscillator Free Running
G
G
1.5
1.8
180
10
5
12
600
1.5
0.6
–2
0.01
0.03
10
0.13
0.3
V
IN
Operating Current
V
IN
Shutdown Current
Output Ripple (Not Including ESR Spike)
G
μ
A
μ
A
G
mV
P-P
mV
P-P
mA
MHz
V
OUT
Short-Circuit Current
Switching Frequency
SS/SHDN Input Threshold
SS/SHDN Soft-Start Current
1.2
0.3
–5
1.8
1
–1
G
V
V
SS/SHDN
= 0V (Note 3)
V
SS/SHDN
= V
IN
C
SS
= 0pF, V
IN
= 3.3V
C
SS
= 10nF, V
IN
= 3.3V
0V
≤
I
OUT
≤
250mA
0V
≤
I
OUT
≤
250mA
G
μ
A
μ
A
ms
ms
Turn-On Time
Load Regulation
Line Regulation
mV/mA
%/V
(Note 1)
V
IN
to GND...................................................–0.3V to 6V
SS/SHDN to GND........................ – 0.3V to (V
IN
+ 0.3V)
V
OUT
Short-Circuit Duration............................ Indefinite
Operating Temperature Range (Note 2).. –40
°
C to 85
°
C
Storage Temperature Range................. –40
°
C to 150
°
C
Lead Temperature (Soldering, 10 sec)..................300
°
C
ORDER PART
NUMBER
LTC1911EMS8-1.5
LTC1911EMS8-1.8
T
JMAX
= 125
°
C,
θ
JA
= 160
°
C/W
The
G
denotes specifications which apply over the full operating
temperature range, otherwise specifications are T
A
= 25
°
C. V
IN
= 3.6V, C1 = 1
μ
F, C2 = 1
μ
F, C
IN
= 10
μ
F, C
OUT
= 10
μ
F unless
otherwise noted.
ABSOLUTEW
W
W
U
PACKAGE/ORDER U
U
W
MS8 PART MARKING
1
2
3
4
V
IN
C2
+
C2
–
GND
8
7
6
5
SS/SHDN
C1
V
OUT
C1
–
TOP VIEW
MS8 PACKAGE
8-LEAD PLASTIC MSOP
LTMY
LTNU
ELECTRICAL CHARACTERISTICS
Note 1:
Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
Note 2:
The LTC1911E is guaranteed to meet specified performance from
0
°
C to 70
°
C. Specifications over the –40
°
C to 85
°
C operating temperature
range are assured by design, characterization and correlation with
statistical process control.
Note 3:
Currents flowing into the device are positive polarity. Currents
flowing out of the device are negative polarity.
Consult LTC Marketing for parts specified with wider operating temperature ranges.
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