参数资料
型号: LTC1682CS8#TR
厂商: Linear Technology
文件页数: 3/12页
文件大小: 0K
描述: IC REG MULTI CONFIG ADJ 8SOIC
标准包装: 2,500
类型: 升压(升压),切换电容(充电泵),倍增器
输出类型: 可调式
输出数: 1
输出电压: 2.5 V ~ 5.5 V
输入电压: 1.8 V ~ 4.4 V
PWM 型: Burst Mode?
频率 - 开关: 550kHz
电流 - 输出: 90mA
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: 带卷 (TR)
供应商设备封装: 8-SOIC
LTC1682/LTC1682-3.3/LTC1682-5
ELECTRICAL CHARACTERISTICS The q denotes specifications that apply over the full operating temperature
range, otherwise specifications are T A = 25 ° C. SHDN = V IN = 3V; C1 = 0.22 μ F; C2, C3, C4 = 4.7 μ F, unless otherwise noted.
PARAMETER
CPO (Charge Pump Output)
Output Resistance
V OUT Dropout Voltage (Note 3)
V OUT Enable Time
V OUT Output Noise Voltage
V OUT Line Regulation
V OUT Load Regulation
CONDITIONS
V IN = 1.8V, I OUT = 10mA
V IN = 3V, I OUT = 10mA
V IN = 4.4V, I OUT = 10mA
LTC1682, I OUT = 10mA, V OUT = 2.57V (Note 5)
LTC1682/LTC1682-3.3, I OUT = 10mA, V OUT = 3.3V
LTC1682/LTC1682-5, I OUT = 10mA, V OUT = 5V
I OUT = 10mA
I OUT = 10mA, 10Hz ≤ f ≤ 100kHz, V OUT = 5V
LTC1682
I OUT = 10mA, 10Hz ≤ f ≤ 2.5MHz, V OUT = 5V
I OUT = 10mA, 10Hz ≤ f ≤ 100kHz, C FILT = 1nF
LTC1682-3.3
I OUT = 10mA, 10Hz ≤ f ≤ 2.5MHz, C FILT = 1nF
I OUT = 10mA, 10Hz ≤ f ≤ 100kHz, C FILT = 1nF
LTC1682-5
I OUT = 10mA, 10Hz ≤ f ≤ 2.5MHz, C FILT = 1nF
V IN = 3V to 4V, I OUT = 0mA (Note 6)
I OUT = 1mA to 10mA
q
q
q
q
q
q
q
q
MIN
TYP
18
13
11
100
75
50
2
88
800
58
500
64
600
5
3
MAX
30
20
17
160
120
90
20
10
UNITS
?
?
?
mV
mV
mV
ms
μ V RMS
μ V P-P
μ V RMS
μ V P-P
μ V RMS
μ V P-P
mV
mV
I OUT = 1mA to 50mA (Note 4)
10
mV
V OUT Shutdown Resistance
SHDN = 0V, Resistance Measured to Ground, V IN = 1.8V
SHDN = 0V, Resistance Measured to Ground, V IN = 4.4V
q
q
150
50
350
150
?
?
SHDN Input Threshold
SHDN Input Current
V IN = 1.8V to 4.4V
SHDN = V IN
SHDN = 0V
q
q
q
0.4
–1
–1
1
1.6
1
1
V
μ A
μ A
Note 1: Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
Note 2: The LTC1682C 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 is not tested at – 40 ° C and 85 ° C. The
LTC1682I is guaranteed to meet the extended temperature limits.
Note 3: Dropout voltage is the minimum input/output voltage required to
maintain regulation at the specified output current. In dropout the output
Note 4: Operating conditions are limited by maximum junction
temperature. The regulated output specification will not apply for all
possible combinations of input voltage and output current. When
operating at maximum input voltage, the output current range may be
limited. When operating at maximum output current, the input voltage
range may be limited.
Note 5: Limited by the LDO disable switch point of 1.45V IN .
Note 6: The LTC1682 is set to 5V. The feedback current is 25 μ A.
voltage will be equal to: V CPO – V DROPOUT (see Figure 4).
3
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