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參數資料
| 型號： | LTC1517-5 |
| 廠商： | 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的穩壓電荷泵采用5引腳SOT - 23封裝 |
| 文件頁數： | 1/8頁 |
| 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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相關代理商/技術參數 |
參數描述 |
|---|---|
| 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 類別:集成電路 (IC) >> PMIC - 穩壓器 - DC DC 開關穩壓器 系列:- 標準包裝:2,500 系列:- 類型:升壓（升壓） 輸出類型:可調式 輸出數:1 輸出電壓:1.24 V ~ 30 V 輸入電壓:1.5 V ~ 12 V PWM 型:電流模式，混合 頻率 - 開關:600kHz 電流 - 輸出:500mA 同步整流器:無 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:8-SOIC（0.154"，3.90mm 寬） 包裝:帶卷 (TR) 供應商設備封裝:8-SOIC |
| LTC1517CS5-3.3#TRM | 功能描述:IC REG SWITCHED CAP 3.3V SOT23-5 RoHS:否 類別:集成電路 (IC) >> PMIC - 穩壓器 - DC DC 開關穩壓器 系列:- 標準包裝:2,500 系列:- 類型:升壓（升壓） 輸出類型:可調式 輸出數:1 輸出電壓:1.24 V ~ 30 V 輸入電壓:1.5 V ~ 12 V PWM 型:電流模式，混合 頻率 - 開關:600kHz 電流 - 輸出:500mA 同步整流器:無 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:8-SOIC（0.154"，3.90mm 寬） 包裝:帶卷 (TR) 供應商設備封裝:8-SOIC |
| LTC1517CS5-3.3#TRMPBF | 功能描述:IC REG SWITCHED CAP 3.3V SOT23-5 RoHS:是 類別:集成電路 (IC) >> PMIC - 穩壓器 - DC DC 開關穩壓器 系列:- 標準包裝:2,500 系列:- 類型:升壓（升壓） 輸出類型:可調式 輸出數:1 輸出電壓:1.24 V ~ 30 V 輸入電壓:1.5 V ~ 12 V PWM 型:電流模式，混合 頻率 - 開關:600kHz 電流 - 輸出:500mA 同步整流器:無 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:8-SOIC（0.154"，3.90mm 寬） 包裝:帶卷 (TR) 供應商設備封裝:8-SOIC |
| LTC1517CS5-3.3#TRPBF | 功能描述:IC REG SWITCHED CAP 3.3V SOT23-5 RoHS:是 類別:集成電路 (IC) >> PMIC - 穩壓器 - DC DC 開關穩壓器 系列:- 標準包裝:2,500 系列:- 類型:升壓（升壓） 輸出類型:可調式 輸出數:1 輸出電壓:1.24 V ~ 30 V 輸入電壓:1.5 V ~ 12 V PWM 型:電流模式，混合 頻率 - 開關:600kHz 電流 - 輸出:500mA 同步整流器:無 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:8-SOIC（0.154"，3.90mm 寬） 包裝:帶卷 (TR) 供應商設備封裝:8-SOIC |
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