参数资料
型号: LTC1514CS8-3.3#PBF
厂商: Linear Technology
文件页数: 2/8页
文件大小: 0K
描述: IC REG MULTI CONFIG 3.3V 8SOIC
标准包装: 100
类型: 降压(降压),升压(升压),切换电容(充电泵)
输出类型: 固定
输出数: 1
输出电压: 3.3V
输入电压: 2 V ~ 10 V
频率 - 开关: 650kHz
电流 - 输出: 50mA
同步整流器:
工作温度: 0°C ~ 70°C
安装类型: 表面贴装
封装/外壳: 8-SOIC(0.154",3.90mm 宽)
包装: 管件
供应商设备封装: 8-SOIC
LTC1514-3.3/LTC1514-5
ABSOLUTE M AXI M U M RATINGS
(Note 1)
V IN to GND ................................................ – 0.3V to 12V
PACKAGE/ORDER I N FOR M ATIO N
ORDER PART
V OUT to GND ............................................. – 0.3V to 12V
SHDN, LBI, LBO to GND ........................... – 0.3V to 12V
V OUT Short-Circuit Duration ............................. Indefinite
Operating Temperature Range
Commercial ............................................. 0 ° C to 70 ° C
Industrial ........................................... – 40 ° C to 85 ° C
Storage Temperature Range ................. – 65 ° C to 150 ° C
Lead Temperature (Soldering, 10 sec).................. 300 ° C
TOP VIEW
SHDN 1 8 V OUT
LBO 2 7 V IN
LBI 3 6 C1 +
GND 4 5 C1 –
S8 PACKAGE
8-LEAD PLASTIC SO
T JMAX = 125 ° C, θ JA = 110 ° C/ W
NUMBER
LTC1514CS8-3.3
LTC1514CS8-5
LTC1514IS8-3.3
LTC1514IS8-5
S8 PART MARKING
15143 1514I3
15145
1514I5
Consult factory for Military grade parts.
ELECTRICAL CHARACTERISTICS
V IN = 2V to 10V, SHDN = 3V, C1 = 0.22 μ F, C IN = C OUT = 10 μ F, unless otherwise noted (Note 2).
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
V IN Operating Voltage
LTC1514-3.3
LTC1514-5
q
q
2.0
2.7
8
10
V
V
V OUT (LTC1514-3.3)
V OUT (LTC1514-5)
V IN Operating Current
V IN Shutdown Current
2V ≤ V IN ≤ 8V, I OUT ≤ 15mA
3V ≤ V IN ≤ 8V, I OUT ≤ 50mA
2.7V ≤ V IN ≤ 10V, I OUT ≤ 15mA
3.3V ≤ V IN ≤ 10V, I OUT 50mA
V IN ≤ 5V, I OUT = 0, SHDN = 3V
V IN > 5V, I OUT = 0, SHDN = 3V
SHDN = 0V, V IN ≤ 5V
SHDN = 0V, V IN > 5V
q
q
q
q
q
q
q
3.17
3.17
4.8
4.8
3.3
3.3
5
5
60
75
10
3.43
3.43
5.2
5.2
100
120
20
35
V
V
V
V
μ A
μ A
μ A
μ A
Output Ripple
Full Load (Note 2)
100
mV P-P
Switching Frequency
q
500
650
800
kHz
LBI Trip Point
LBI Ramping Negative
q
1.110
1.145
1.180
V
LBI Trip Point Hysteresis
1
%
LBI Input Current
LBO V OL
LBO Leakage Current
LBI = 1.145V
I SINK = 100 μ A, V IN = 3V
V LBO = 5V, LBI = V IN
q
q
q
– 50
–1
0.025
50
0.4
1
nA
V
μ A
SHDN Input Threshold
V IL
V IH
q
q
0.4
1
1
1.6
V
V
SHDN Input Current
I OUT Short-Circuit Current
t ON
SHDN = V IN
SHDN = 0V
V OUT = 0V
Soft Start Turn-On Time
q
q
q
–1
–1
12
4
1
1
40
μ A
μ A
mA
ms
The q denotes specifications which apply over the full operating
temperature range.
Note 1: Absolute Maximum Ratings are those values beyond which the life of
the device may be impaired.
2
Note 2: For V IN ≥ 8V, C OUT = 22 μ F.
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