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參數(shù)資料
| 型號(hào)： | LT1617 |
| 廠商： | Linear Technology Corporation |
| 英文描述： | Micropower Inverting DC/DC Converters in SOT-23(微功耗反相DC/DC變換器（SOT-23封裝）) |
| 中文描述： | 微倒轉(zhuǎn)DC / DC轉(zhuǎn)換器采用SOT - 23（微功耗反相直流/直流變換器（采用SOT - 23封裝）） |
| 文件頁數(shù)： | 1/8頁 |
| 文件大?。?/td> | 136K |
| 代理商： | LT1617 |
1
LT1617/LT1617-1
Micropower Inverting
DC/DC Converters
TYPICAL APPLICATIO
N
U
APPLICATIU
DESCRIPTIOU
The LT
1617/LT1617-1 are micropower inverting DC/DC
converters in a 5-lead SOT-23 package. The LT1617 is
designed for higher power systems with a 350mA current
limit and an input voltage range of 1.2V to 15V, whereas
the LT1617-1 is intended for lower power and single-cell
applications with a 100mA current limit and an extended
input voltage range of 1V to 15V. Otherwise, the two
devices are functionally equivalent. Both devices feature a
quiescent current of only 20
μ
A at no load, which further
reduces to 0.5
μ
A in shutdown. A current limited, fixed off-
time control scheme conserves operating current, result-
ing in high efficiency over a broad range of load current.
The 36V switch allows high voltage outputs up to –34V to
be easily generated without the use of costly transformers.
The LT1617’s low off-time of 400ns permits the use of
tiny, low profile inductors and capacitors to minimize
footprint and cost in space-conscious portable applications.
, LTC and LT are registered trademarks of Linear Technology Corporation.
FEATURES
in SOT-23
I
Low Quiescent Current:
20
μ
A in Active Mode
<1
μ
A in Shutdown Mode
I
Operates with V
IN
as Low as 1V
I
Low V
CESAT
Switch: 250mV at 300mA
I
Uses Small Surface Mount Components
I
High Output Voltage: Up to –34V
I
Tiny 5-Lead SOT-23 Package
I
LCD Bias
I
Handheld Computers
I
Battery Backup
I
Digital Cameras
1-Cell Li-Ion to –15V Inverting Converter
Efficiency
V
IN
SW
NFB
LT1617
V
IN
2.5V TO 4.2V
L1
22
μ
H
D1
SHDN
24.9k
267k
C2
4.7
μ
F
–15V
12mA
1617/-1 TA01
GND
C1
4.7
μ
F
C1: TAIYO YUDEN LMK316BJ475
C2: TAIYO YUDEN EMK316BJ475
C3: TAIYO YUDEN TMK316BJ224
L1, L2: MURATA LQH3C220K34
D1: MOTOROLA MBR0530
L2
22
μ
H
4
3
2
1
5
C3
0.22
μ
F
LOAD CURRENT (mA)
0.1
1
10
30
E
80
75
70
65
60
55
50
1617/-1 TA01a
V
IN
= 4.2V
V
IN
= 2.5V
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LT1618EMS | Constant-Current/ Constant-Voltage 1.4MHz Step-Up DC/DC Converter |
| LT1618 | Constant-Current/ Constant-Voltage 1.4MHz Step-Up DC/DC Converter(恒定電流/恒定電壓，1.4MHz,步升DC/DC變換器) |
| LT1619 | Low Voltage Current Mode PWM Controller |
| LT1619ES8 | Low Voltage Current Mode PWM Controller |
| LT1619EMS8 | Low Voltage Current Mode PWM Controller |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LT1617-1 | 制造商:LINER 制造商全稱:Linear Technology 功能描述:Inverting Micropower DC/DC Converter with Schottky in ThinSOT Package |
| LT1617ES5 | 制造商:LINER 制造商全稱:Linear Technology 功能描述:Micropower Inverting DC/DC Converters in SOT-23 |
| LT1617ES5#PBF | 制造商:Linear Technology 功能描述: 制造商:Linear Technology 功能描述:SP-SWREG/Monolithic, CUT TAPE Micropower Inverting DC/DC Converters in SOT-23 制造商:Linear Technology 功能描述:IC, DC/DC CONVERTER, 5-SOT-23, Primary Input Voltage:12V, No. of Outputs:1, Output Voltage:34V, Output Current:350mA, No. of Pins:5, Operating Temperature Min:-40C, Operating Temperature Max:85C, MSL:MSL 1 - Unlimited , RoHS Compliant: Yes |
| LT1617ES5#PBF | 制造商:Linear Technology 功能描述:IC DC/DC CONVERTER 制造商:Linear Technology 功能描述:IC, DC/DC CONVERTER, 5-SOT-23 |
| LT1617ES5#TR | 功能描述:IC REG INV ADJ 0.35A TSOT23-5 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:500 系列:- 類型:切換式電容器（充電泵），反相 輸出類型:固定 輸出數(shù):1 輸出電壓:-3V 輸入電壓:2.3 V ~ 5.5 V PWM 型:Burst Mode? 頻率 - 開關(guān):900kHz 電流 - 輸出:100mA 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:SOT-23-6 細(xì)型，TSOT-23-6 包裝:帶卷 (TR) 供應(yīng)商設(shè)備封裝:TSOT-23-6 其它名稱:LTC1983ES6-3#TRMTR |
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