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参数资料
| 型号： | LTC1517-5 |
| 厂商： | Linear Technology Corporation |
| 英文描述： | Micropower, Regulated 5V Charge Pump in a 5-Pin SOT-23 Package |
| 中文描述： | 微功耗，5V的稳压电荷泵采用5引脚SOT - 23封装 |
| 文件页数： | 1/8页 |
| 文件大小： | 211K |
| 代理商： | LTC1517-5 |
1
LTC1517-3.3
Micropower, Regulated
3.3V Charge Pump in a
5-Pin SOT-23 Package
FEATURES
I
Ultralow Power: I
CC
= 6
μ
A Typ
I
Short-Circuit/Thermal Protected
I
3.3V
±
4% Regulated Output
I
V
IN
Range: 2V to 4.4V
I
Output Current: 8mA (V
IN
≥
2V)
DESCRIPTIO
N
U
The LTC
1517-3.3 is a micropower charge pump DC/DC
converter that produces a regulated 3.3V output. The input
voltage range is 2V to 4.4V, allowing a single cell lithium
battery to produce a regulated 3.3V output over the entire life
of the battery. Extremely low operating current (typically 6
μ
A
with no load) and low external parts count (one 0.1
μ
F flying
capacitor and two small bypass capacitors at V
IN
and V
OUT
)
make the part ideally suited for small, light load battery-
powered applications. The total printed circuit board area of
the application circuit shown below is only 0.045in
2
.
The part operates as a Burst Mode
TM
switched-capacitor
voltage doubler to produce a regulated output. The part has
thermal shutdown capability and can survive a continuous
short circuit from V
OUT
to GND. The device is available in a
5-pin SOT-23 package.
15mA (V
IN
≥
2.5V)
I
No Inductors
I
Ultrasmall Application Circuit (0.045in
2
)
I
700kHz Switching Frequency
I
Available in 5-Pin SOT-23
I
Cellular Telephones
I
Battery-Operated Equipment
I
Local Power Supplies
I
Handheld Instruments
I
PCMCIA Supplies
APPLICATIO
S
U
, LTC and LT are registered trademarks of Linear Technology Corporation.
Burst Mode is a trademark of Linear Technology Corporation.
TYPICAL APPLICATIO
N
U
3.3
μ
F
1517-3.3 TA01
1
2
3
4
5
0.1
μ
F
6.8
μ
F
V
OUT
= 3.3V
±
4%
I
OUT
= 8mA (V
IN
≥
2V)
I
OUT
= 15mA (V
IN
≥
2.5V)
V
IN
2V TO 4.4V
V
IN
GND
LTC1517-3.3
V
OUT
C1
+
C1
–
OUTPUT CURRENT (mA)
0
O
40
1517 G05
10
20
30
3.40
3.35
3.30
3.25
3.20
T
= 25
°
C
C1 = 0.1
μ
F
C
OUT
= 6.8
μ
F
V
IN
= 2V
V
IN
= 2.5V
Typical Output Voltage
vs Output Current
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LTC1517CS5-3.3 | 制造商:Linear Technology 功能描述:Charge Pump STPUP 3.3V 15mA 5-Pin TSOT-23 |
| LTC1517CS5-3.3#TR | 功能描述:IC REG SWITCHED CAP 3.3V SOT23-5 RoHS:否 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 开关稳压器 系列:- 标准包装:2,500 系列:- 类型:升压（升压） 输出类型:可调式 输出数:1 输出电压:1.24 V ~ 30 V 输入电压:1.5 V ~ 12 V PWM 型:电流模式，混合 频率 - 开关:600kHz 电流 - 输出:500mA 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:8-SOIC（0.154"，3.90mm 宽） 包装:带卷 (TR) 供应商设备封装:8-SOIC |
| LTC1517CS5-3.3#TRM | 功能描述:IC REG SWITCHED CAP 3.3V SOT23-5 RoHS:否 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 开关稳压器 系列:- 标准包装:2,500 系列:- 类型:升压（升压） 输出类型:可调式 输出数:1 输出电压:1.24 V ~ 30 V 输入电压:1.5 V ~ 12 V PWM 型:电流模式，混合 频率 - 开关:600kHz 电流 - 输出:500mA 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:8-SOIC（0.154"，3.90mm 宽） 包装:带卷 (TR) 供应商设备封装:8-SOIC |
| LTC1517CS5-3.3#TRMPBF | 功能描述:IC REG SWITCHED CAP 3.3V SOT23-5 RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 开关稳压器 系列:- 标准包装:2,500 系列:- 类型:升压（升压） 输出类型:可调式 输出数:1 输出电压:1.24 V ~ 30 V 输入电压:1.5 V ~ 12 V PWM 型:电流模式，混合 频率 - 开关:600kHz 电流 - 输出:500mA 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:8-SOIC（0.154"，3.90mm 宽） 包装:带卷 (TR) 供应商设备封装:8-SOIC |
| LTC1517CS5-3.3#TRPBF | 功能描述:IC REG SWITCHED CAP 3.3V SOT23-5 RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 开关稳压器 系列:- 标准包装:2,500 系列:- 类型:升压（升压） 输出类型:可调式 输出数:1 输出电压:1.24 V ~ 30 V 输入电压:1.5 V ~ 12 V PWM 型:电流模式，混合 频率 - 开关:600kHz 电流 - 输出:500mA 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:8-SOIC（0.154"，3.90mm 宽） 包装:带卷 (TR) 供应商设备封装:8-SOIC |
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