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参数资料
| 型号： | LTC3221EDC#TRMPBF |
| 厂商： | Linear Technology |
| 文件页数： | 3/12页 |
| 文件大小： | 0K |
| 描述： | IC REG SWITCHED CAP DBL ADJ 6DFN |
| 标准包装： | 500 |
| 类型： | 切换式电容器（充电泵），倍增器 |
| 输出类型： | 可调式 |
| 输出数： | 1 |
| 输出电压： | 可调 |
| 输入电压： | 1.8 V ~ 5.5 V |
| PWM 型： | Burst Mode? |
| 频率 - 开关： | 600kHz |
| 电流 - 输出： | 60mA |
| 同步整流器： | 无 |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 6-WFDFN 裸露焊盘 |
| 包装： | 带卷 (TR) |
| 供应商设备封装： | 6-DFN-EP（2x2） |
LTC3221/
LTC3221-3.3/LTC3221-5
otherwise speci?cations are at = The = 2.5V the speci?cations which 3V over the full S V ? H ? D ? N = temperature range, ●
ELECTRICAL CHARACTERISTICS 25°C. V IN denotes (LTC3221-3.3/LTC3221) or apply (LTC3221-5), ? operating IN ,
C FLY = 1μF, C IN = 2.2μF, C OUT = 2.2μF, unless otherwise speci?ed.
SYMBOL PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
LTC3221-3.3/LTC3221-5
I ? S ? H ? D ? N
V IH
V IL
Shutdown Supply Current
? S ? H ? D ? N Input Threshold (High)
? S ? H ? D ? N Input Threshold (Low)
V OUT = 0V, ? S ? H ? D ? N = 0V
●
●
●
1.3
1
0.4
μA
V
V
I IH
I IL
? S ? H ? D ? N Input Current (High)
? S ? H ? D ? N Input Current (Low)
? S ? H ? D ? N = V IN
? S ? H ? D ? N = 0V
●
●
–1
–1
1
1
μA
μA
LTC3221/LTC3221-3.3/LTC3221-5
f OSC
V UVLO
Switching Frequency
UVLO Threshold
V OUT = 2.5V
600
1
kHz
V
Note 1: Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
Note 2: The LTC3221EDC-X is guaranteed to meet performance
speci?cations from 0°C to 70°C. Speci?caiton over the –40°C to 85°C
operating temperature range are assured by design, characterization and
correlation with statisitical process controls.
Note 3: Guaranteed by design, not subject to test.
Note 4: R OL = (2V IN – V OUT )/I OUT .
TYPICAL PERFOR A CE CHARACTERISTICS
800
750
700
Oscillator Frequency vs
Supply Voltage
800
750
700
Oscillator Frequency vs
Temperature
0.9
0.8
? S ? H ? D ? N Threshold Voltage vs
Supply Voltage
LOW-TO-HIGH THRESHOLD
650
650
V IN = 4.5V
0.7
600
550
600
550
V IN = 2.5V
V IN = 1.8V
0.6
HIGH-TO-LOW THRESHOLD
500
450
500
450
0.5
400
1.5
2.0
2.5 3.0 3.5
4.0
4.5
400
–50
–25
0 25
50
75
100
125
0.4
1.5
2.0
2.5 3.0 3.5
4.0
4.5
SUPPLY VOLTAGE (V)
3221 G01
TEMPERATURE ( ° C)
3221 G02
SUPPLY VOLTAGE (V)
3221 G03
0.9
? S ? H ? D ? N LO-to-HI Threshold vs
Temperature
0.9
? S ? H ? D ? N HI-to-LO Threshold vs
Temperature
150
Short-Circuit Current vs
Supply Voltage
0.8
0.8
V IN = 3.2V
130
T A = –45°C
0.7
V IN = 3.2V
0.7
V IN = 2.5V
110
T A = 90°C
V IN = 2.5V
T A = 25°C
0.6
0.6
V IN = 1.8V
90
V IN = 1.8V
0.5
0.5
70
0.4
–50
–25
0 25
50
75
100
125
0.4
–50
–25
0 25
50
75
100
125
50
1.5
2.0
2.5 3.0 3.5
4.0
4.5
TEMPERATURE ( ° C)
3221 G04
TEMPERATURE ( ° C)
3221 G05
SUPPLY VOLTAGE (V)
3221 G06
3221f
3
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