参数资料
型号: LTC1430CN
厂商: Linear Technology
文件页数: 3/16页
文件大小: 0K
描述: IC SW REG CNTRLR STEP-DWN 16-DIP
标准包装: 25
应用: 控制器,Intel Pentium?
输入电压: 4 V ~ 8 V
输出数: 1
输出电压: 3.3V,可调
工作温度: 0°C ~ 70°C
安装类型: 通孔
封装/外壳: 16-DIP(0.300",7.62mm)
供应商设备封装: 16-PDIP
包装: 管件
LTC1430
ELECTRICAL CHARACTERISTICS The q denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T A = 25 ° C. V CC = 5V unless otherwise noted. (Note 2)
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
V IH
V IL
SHDN Input High Voltage
SHDN Input Low Voltage
q
q
2.4
0.8
V
V
I IN
SHDN Input Current
q
± 0.1
± 1
μ A
A V
Error Amplifier Open-Loop DC Gain
(LTC1430I)
q
40
48
dB
gm V
Error Amplifier Transconductance
(LTC1430C)
(LTC1430I)
q
300
650
650
1200
μ Mho
μ Mho
gm I
I LIM Amplifier Transconductance
(Note 5)
1300
μ Mho
I MAX
I SS
t r , t s
I MAX Sink Current
Soft-Start Source Current
Driver Rise/Fall Time
V I(MAX) = V CC (LTC1430C)
V I(MAX) = V CC (LTC1430I)
V SS = 0 (LTC1430C)
V SS = 0 (LTC1430I)
Figure 3, PV CC1 = PV CC2 = 5V
q
q
q
q
8
8
–8
–8
12
12
–12
–12
80
16
17
–16
–17
250
μ A
μ A
μ A
μ A
ns
t NOV
DC MAX
Driver Non-Overlap Time
Maximum Duty Cycle
Figure 3, PV CC1 = PV CC2 = 5V
V COMP = V CC (LTC1430C)
V COMP = V CC , V FB = 0 (LTC1430I)
V COMP = V CC , V FB = 1.265V (LTC1430I)
q
q
q
25
83
130
90
90
88
250
96
96
ns
%
%
%
Note 1: Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
Note 2: All currents into device pins are positive; all currents out of device
pins are negative. All voltages are referenced to ground unless otherwise
specified.
Note 3: This parameter is guaranteed by correlation and is not tested
Note 4: Supply current in normal operation is dominated by the current
needed to charge and discharge the external FET gates. This will vary with
the LTC1430 operating frequency, operating voltage and the external FETs
used.
Note 5: The I LIM amplifier can sink but cannot source current. Under
normal (not current limited) operation, the I LIM output current will be zero.
directly.
3
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