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參數(shù)資料
| 型號(hào)： | LTC1682IMS8-5 |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | Doubler Charge Pumps with Low Noise Linear Regulator |
| 中文描述： | SWITCHED CAPACITOR REGULATOR, 620 kHz SWITCHING FREQ-MAX, PDSO8 |
| 封裝： | PLASTIC, MSOP-8 |
| 文件頁數(shù)： | 1/12頁 |
| 文件大小： | 186K |
| 代理商： | LTC1682IMS8-5 |
1
LTC1682/LTC1682-3.3/LTC1682-5
Doubler Charge Pumps with
Low Noise Linear Regulator
I
Low Output Noise: 60
μ
V
RMS
(100kHz BW)
I
Adjustable or Fixed Boosted Output
I
Adjustable Output Voltage Range: 2.5V to 5.5V
I
Fixed Output Voltages: 3.3V, 5V
I
Wide Input Voltage Range: 1.8V to 4.4V
I
Uses Small Ceramic Capacitors
I
No Inductors Required
I
Output Current up to 50mA
I
550kHz Switching Frequency
I
Low Operating Current: 150
μ
A
I
Low Shutdown Current: 1
μ
A
I
Internal Thermal Shutdown and Current Limiting
I
Available in 8-Pin MSOP and SO Packages
The LTC
1682/LTC1682-3.3/LTC1682-5 are doubler charge
pumps with an internal low noise, low dropout (LDO) linear
regulator. These parts are designed to provide a low noise
boosted supply voltage for powering noise sensitive devices
such as high frequency VCOs in wireless applications.
An internal doubler charge pump converts a 1.8V to 4.4V
input to a boosted output, while the internal LDO regulator
converts the boosted voltage to a low noise regulated output.
The adjustable version allows the user to set V
OUT
via external
resistors connected to FB. The regulator is capable of supply-
ing up to 50mA of output current. Shutdown reduces the
supply current to < 5
μ
A, removes the load from V
IN
by
disabling the regulator and discharges V
OUT
to ground
through a 100
switch.
The LTC1682 LDO regulator is stable with only 2
μ
F on the
output. Small ceramic capacitors can be used, reducing PC
board area.
The LTC1682/LTC1682-3.3/LTC1682-5 are short-circuit and
over temperature protected. The parts are available in 8-pin
MSOP and SO packages.
, LTC and LT are registered trademarks of Linear Technology Corporation.
Open-Loop Close-In Phase Noise
CENTER = 902MHz
SPAN = 100kHz
SWP = 10 sec
RES BW = 1kHz
VBW = 30Hz
REF = 0dBm
1682 TA02
4.2V VCO Power Supply, V
IN
= 2.5V to 4.4V
I
VCO Power Supplies in Cellular Phones
I
2-Way Pagers
I
Wireless PCMCIA Cards
I
Portable Medical Instruments
I
Low Power Data Acquisition
I
Remote Transmitters
AMPLITUDE
10dB/DIV
FEATURES
DESCRIPTIOU
APPLICATIU
TYPICAL APPLICATIO
U
36k
SHUTDOWN
1
V
OUT
15k
100k
4.7
μ
F
0.22
μ
F
V
IN
2.5V TO
4.4V
4.7
μ
F
4.2V
2
3
4
8
7
6
5
SHDN
FB
GND
CPO
C
+
V
IN
C
–
1682 TA01
LTC1682
VCO
MURATA
MQE001-902
M
1
μ
F
4.7
μ
F
1000pF
1k
B
P
C
1000pF
1000pF
4.7
μ
F
V
C
f
902MHz
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LTC1682IS8 | Replaced by TLV5618A : Dual 12-Bit DAC, Pgrmable 8-SOIC |
| LTC1682IS8-3.3 | Replaced by TLV5618A : Dual 12-Bit DAC, Pgrmable 8-SOIC |
| LTC1682IS8-5 | Doubler Charge Pumps with Low Noise Linear Regulator |
| LTC1682 | Doubler Charge Pumps with Low Noise Linear Regulator(可調(diào)輸出，帶低噪聲線性穩(wěn)壓器的倍壓器電荷泵) |
| LTC1682-5 | Doubler Charge Pumps with Low Noise Linear Regulator(5V輸出，帶低噪聲線性穩(wěn)壓器的倍壓器電荷泵) |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LTC1682IMS8-5#PBF | 功能描述:IC REG MULTI CONFIG 5V 8MSOP RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 開關(guān)穩(wěn)壓器 系列:- 標(biāo)準(zhǔn)包裝:2,500 系列:- 類型:升壓（升壓） 輸出類型:可調(diào)式 輸出數(shù):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(guān):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(yīng)商設(shè)備封裝:8-SOIC |
| LTC1682IMS8-5#TR | 功能描述:IC REG MULTI CONFIG 5V 8MSOP RoHS:否 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 開關(guān)穩(wěn)壓器 系列:- 標(biāo)準(zhǔn)包裝:2,500 系列:- 類型:升壓（升壓） 輸出類型:可調(diào)式 輸出數(shù):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(guān):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(yīng)商設(shè)備封裝:8-SOIC |
| LTC1682IMS8-5#TRPBF | 功能描述:IC REG MULTI CONFIG 5V 8MSOP RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 開關(guān)穩(wěn)壓器 系列:- 標(biāo)準(zhǔn)包裝:2,500 系列:- 類型:升壓（升壓） 輸出類型:可調(diào)式 輸出數(shù):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(guān):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(yīng)商設(shè)備封裝:8-SOIC |
| LTC1682IS8 | 功能描述:IC REG MULTI CONFIG ADJ 8SOIC RoHS:否 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 開關(guān)穩(wěn)壓器 系列:- 標(biāo)準(zhǔn)包裝:2,500 系列:- 類型:升壓（升壓） 輸出類型:可調(diào)式 輸出數(shù):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(guān):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(yīng)商設(shè)備封裝:8-SOIC |
| LTC1682IS8#PBF | 功能描述:IC REG MULTI CONFIG ADJ 8SOIC RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 開關(guān)穩(wěn)壓器 系列:- 標(biāo)準(zhǔn)包裝:2,500 系列:- 類型:升壓（升壓） 輸出類型:可調(diào)式 輸出數(shù):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(guān):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(yīng)商設(shè)備封裝:8-SOIC |
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