参数资料
型号: LTC1503IS8-1.8#TR
厂商: Linear Technology
文件页数: 2/12页
文件大小: 0K
描述: IC REG BUCK SWITCHED CAP 8SOIC
标准包装: 2,500
类型: 降压(降压),切换电容(充电泵)
输出类型: 固定
输出数: 1
输出电压: 1.8V
输入电压: 2.4 V ~ 6 V
频率 - 开关: 600kHz
电流 - 输出: 100mA
同步整流器:
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 8-SOIC(0.154",3.90mm 宽)
包装: 带卷 (TR)
供应商设备封装: 8-SOIC
LTC1503-1.8/LTC1503-2
ABSOLUTE
AXI U
RATI GS
(Note 1)
V IN , C1 + , C1 – , C2 + , C2 – to GND ............... – 0.3V to 6.5V
SHDN/SS to GND ......................... – 0.3V to (V IN + 0.3V)
V OUT Short-Circuit Duration ............................. Indefinite
Commercial Temperature Range ............ – 40 ° C to 85 ° C
PACKAGE/ORDER I FOR ATIO
ORDER PART
Industrial Temperature Range ............... – 40 ° C to 85 ° C
Specified Temperature Range (Note 2) ... – 40 ° C to 85 ° C
Storage Temperature Range ................ – 65 ° C to 150 ° C
Lead Temperature (Soldering, 10 sec)................. 300 ° C
ORDER PART
NUMBER
TOP VIEW
NUMBER
TOP VIEW
V OUT 1 8 C2 –
C1 – 2 7 GND
C1 + 3 6 C2 +
V IN 4 5 SHDN/SS
MS8 PACKAGE
8-LEAD PLASTIC MSOP
T JMAX = 125 ° C, θ JA = 200 ° C/W
LTC1503CMS8-1.8
LTC1503CMS8-2
MS8 PART MARKING
LTFX
LTHN
V OUT 1 8 C2 –
C1 – 2 7 GND
C1 + 3 6 C2 +
V IN 4 5 SHDN/SS
S8 PACKAGE
8-LEAD PLASTIC SO
T JMAX = 125 ° C, θ JA = 150 ° C/W
LTC1503CS8-1.8
LTC1503CS8-2
LTC1503IS8-1.8
LTC1503IS8-2
S8 PART MARKING
150318 503I18
15032
1503I2
Consult factory for Military grade parts.
ELECTRICAL CHARACTERISTICS
The q denotes specifications which apply over the full operating temperature range, otherwise specifications are at T A = 25 ° C.
V IN = V IN(MIN) to V IN(MAX) , C1 = C2 = 1 μ F, C IN = C OUT = 10 μ F unless otherwise noted.
PARAMETER
V IN Operating Voltage
CONDITIONS
q
MIN
2.4
TYP
MAX
6
UNITS
V
V OUT
V IN Operating Current
V IN Shutdown Current
LTC1503-1.8, 0mA < I OUT < 100mA
LTC1503-2, 0mA < I OUT < 100mA
I OUT = 0mA
SHDN/SS = 0V
q
q
q
q
1.728
1.920
1.8
2.0
25
5
1.872
2.080
50
10
V
V
μ A
μ A
Output Ripple Voltage
Efficiency
Switching Frequency
LTC1503-X, V IN = 3.6V, I OUT = 100mA
LTC1503-2, V IN = 3.6V, I OUT = 100mA
Oscillator Free Running
25
82.9
600
mV P-P
%
kHz
SHDN/SS Input Threshold
q
0.2
0.35
0.5
V
SHDN/SS Input Current
V OUT Short-Circuit Current
V SHDN/SS = 0V (Note 3)
V SHDN/SS = V IN
V OUT = 0V (Note 4)
q
q
q
– 3.5
–1
8
–2
22
–1
1
50
μ A
μ A
mA
V OUT Turn-On Time
C SS = 0nF, V IN = 3.6V, C OUT = 10 μ F
C SS = 10nF
0.1
8
ms
ms
Note 1: Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
Note 2: The LTC1503C is guaranteed to meet specified performance from
0 ° C to 70 ° C and is designed, characterized and expected to meet these
extended temperature limits, but are not tested at – 40 ° C and 85 ° C. The
LTC1503I is guaranteed to meet the extended temperature limits.
2
Note 3: Currents flowing into the device are positive polarity. Currents
flowing out of the device are negative polarity.
Note 4: When V OUT is less than 150mV, I OUT is limited to much less than
the maximum rated output current to prevent damage to the output
devices.
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