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參數資料
| 型號： | LT1615 |
| 廠商： | Linear Technology Corporation |
| 英文描述： | Micropower Step-Up DC/DC Convertersin SOT-23 |
| 中文描述： | 微功率升壓直流/直流Convertersin的SOT - 23 |
| 文件頁數： | 1/8頁 |
| 文件大小： | 104K |
| 代理商： | LT1615 |
1
LT1615/LT1615-1
Micropower Step-Up
DC /DC C onverters
in SOT-23
The LT
1615/LT1615-1 are micropower step-up DC/DC
converters in a 5-lead SOT-23 package. The LT1615 is
designed for higher power systems with a 350mA current
limit and an input voltage range of 1.2V to 15V, whereas
the LT1615-1 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 in a simple boost topology without the
use of costly transformers. The LT1615’s low off-time of
400ns permits the use of tiny, low profile inductors and
capacitors to minimize footprint and cost in space-con-
scious portable applications.
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
Tiny 5-Lead SOT-23 Package
I
Uses Small Surface Mount Components
I
High Output Voltage: Up to 34V
I
LCD Bias
I
Handheld Computers
I
Battery Backup
I
Digital Cameras
, LTC and LT are registered trademarks of Linear Technology Corporation.
1-Cell Li-Ion to 20V Converter for LCD Bias
V
IN
SW
FB
LT1615
V
IN
2.5V TO 4.2V
L1
10
μ
H
D1
SHDN
R2
130k
R1
2M
C2
1
μ
F
20V
12mA
C1: TAIYO YUDEN LMK316BJ475
C2: TAIYO YUDEN TMK316BJ105
D1: MOTOROLA MBR0530
L1: MURATA LQH3C100K24
1615/-1 TA01
GND
C1
4.7
μ
F
Efficiency
LOAD CURRENT (mA)
0.1
0.3
E
1
3
10
30
1615
/-1
TA01a
85
80
75
70
65
60
55
50
V
IN
= 4.2V
V
IN
= 2.5V
V
IN
= 3.3V
APPLICATIOU
FEATURES
TYPICAL APPLICATIO
U
DESCRIPTIO
U
相關PDF資料 |
PDF描述 |
|---|---|
| LT1617-1 | Micropower Inverting DC/DC Converters in SOT-23 |
| LT1617ES5 | Micropower Inverting DC/DC Converters in SOT-23 |
| LT1617ES5-1 | Micropower Inverting DC/DC Converters in SOT-23 |
| LT1681 | Dual Transistor Synchronous Forward Controller |
| LT1681ESW | Dual Transistor Synchronous Forward Controller |
相關代理商/技術參數 |
參數描述 |
|---|---|
| LT1615/LT1615-1 | 制造商:LINER 制造商全稱:Linear Technology 功能描述:4A, 2MHz Dual Phase Step-Up DC/DC Converter in 3mm 3mm DFN |
| LT1615-1 | 制造商:LINER 制造商全稱:Linear Technology 功能描述:Quad DCDC Converter for Triple Outputs TFT Supply Plus LED Driver |
| LT1615ES5 | 制造商:Linear Technology 功能描述:Swithed-Mode Power Supply Controller, Voltage Mode Type, Bi-Polar, 6 Pin, Plastic, TSOP |
| LT1615ES5#PBF | 制造商:Linear Technology 功能描述:Conv DC-DC Single Step Up 1.2V to 15V 5-Pin TSOT-23 制造商:Linear Technology 功能描述:IC STEP-UP DC/DC CONVERTER 5-SOT-23 制造商:Linear Technology 功能描述:IC, STEP-UP DC/DC CONVERTER, 5-SOT-23 制造商:Linear Technology 功能描述:IC, STEP-UP 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 |
| LT1615ES5#TR | 功能描述:IC REG BOOST ADJ 0.35A TSOT23-5 RoHS:否 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 開關穩(wěn)壓器 系列:- 標準包裝: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:1 輸出電壓:-3V 輸入電壓:2.3 V ~ 5.5 V PWM 型:Burst Mode? 頻率 - 開關: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 細型，TSOT-23-6 包裝:帶卷 (TR) 供應商設備封裝:TSOT-23-6 其它名稱:LTC1983ES6-3#TRMTR |
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