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参数资料
| 型号： | LTC3221EDC#TRMPBF |
| 厂商： | Linear Technology |
| 文件页数： | 2/12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
ABSOLUTE
(Note 1)
AXI U RATI GS
PACKAGE/ORDER I FOR ATIO
V IN , ? S ? H ? D ? N, FB ............................................. – 0.3V to 6V
TOP VIEW
V OUT to GND............................................. – 0.3V to 5.5V
V OUT Short-Circuit Duration ............................ Inde?nite
Operating Temperature Range (Note 2) .. – 40°C to 85°C
Storage Temperature Range.................. – 65°C to 125°C
C + 1
C – 2
SHDN/FB* 3
7
6 V OUT
5 V IN
4 GND
Maximum Junction Temperature .......................... 125°C
T JMAX = 125°C, θ JA = 80°C/W
EXPOSED PAD IS GND (PIN 7) MUST BE SOLDERED TO PCB
* ? S ? H ? D ? N ON LTC3221-3.3;LTC3221-5 FB ON LTC3221
ORDER PART NUMBER
LTC3221EDC
LTC3221EDC-3.3
LTC3221EDC-5
DC PART MARKING
LCCP
LBQP
LCCN
Order Options Tape and Reel: Add #TR
Lead Free: Add #PBF Lead Free Tape and Reel: Add #TRPBF
Lead Free Part Marking: http://www.linear.com/leadfree/
Consult LTC Marketing for parts speci?ed with wider operating temperature ranges.
ELECTRICAL CHARACTERISTICS The ● denotes the speci?cations which apply over the full operating
temperature range, otherwise speci?cations are at T A = 25°C. V IN = 2.5V (LTC3221-3.3/LTC3221) or 3V (LTC3221-5), ? S ? H ? D ? N = V 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
V IN
Input Supply Voltage
●
1.8
4.4
V
V OUT
Output Voltage
1.8V ≤ V IN ≤ 4.4V, I OUT ≤ 25mA
2V ≤ V IN < 4.4V, I OUT ≤ 60mA
●
3.168
3.3
3.432
V
I CC
V R
η
I SC
Operating Supply Current
Output Ripple
Ef?ciency
Output Short-Circuit Current
I OUT = 0mA
V IN = 2V, I OUT = 60mA, C OUT = 4.7μF (Note 3)
V IN = 2V, I OUT = 60mA (Note 3)
V OUT = 0V
●
●
8
35
82
120
15
240
μA
mV P-P
%
mA
LTC3221-5
V IN
Input Supply Voltage
●
2.7
5.5
V
V OUT
Output Voltage
2.7V ≤ V IN ≤ 5.5V, I OUT < 25mA
3V ≤ V IN ≤ 5.5V, I OUT < 60mA
●
4.8
5
5.2
V
I CC
V R
η
I SC
Operating Supply Current
Output Ripple
Ef?ciency
Output Short-Circuit Current
I OUT = 0mA
V IN = 3V, I OUT = 60mA, C OUT = 4.7μF (Note 3)
V IN = 3V, I OUT = 60mA (Note 3)
V OUT = 0V
●
●
8
45
82
120
15
240
μA
mV P-P
%
mA
LTC3221
V IN
Input Supply Voltage
●
1.8
5.5
V
V FB
Feedback Voltage
●
1.181
1.23
1.279
V
R OL
I CC
I FB
Open-Loop Impedance
Operating Supply Current
FB Input Current
V IN = 1.8V, V OUT = 3V (Note 4)
I OUT = 0mA
FB = 1.33V, V IN = 2V
●
●
●
–100
10
5
20
12
100
Ω
μA
nA
3221f
2
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