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參數(shù)資料
| 型號(hào)： | LT1935ES5 |
| 廠商： | Linear Integrated Systems |
| 英文描述： | 1.2MHz Boost DC/DC Converter in ThinSOT with 2A Switch |
| 中文描述： | 采用ThinSOT 1.2MHz的升壓具有2A開(kāi)關(guān)直流/直流轉(zhuǎn)換器 |
| 文件頁(yè)數(shù)： | 1/8頁(yè) |
| 文件大小： | 189K |
| 代理商： | LT1935ES5 |
1
LT1935
1935f
DESCRIPTIOU
FEATURES
APPLICATIU
TYPICAL APPLICATIO
U
1.2MHz Boost DC/DC
Converter in ThinSOT
with 2A Switch
■
1.2MHz Switching Frequency
■
High Output Voltage: Up to 38V
■
Wide Input Range: 2.3V to 16V
■
Low V
CESAT
Switch: 180mV at 2A
■
Soft-Start
■
Uses Small Surface Mount Components
■
5V at 1A from 3.3V Input
■
12V at 600mA from 5V Input
■
Low Shutdown Current: <1
μ
A
■
Pin-for-Pin Compatible with the LT1613 and LT1930
■
Low Profile (1mm) SOT-23 (ThinSOT
TM
) Package
The LT
1935 is the industry’s highest power SOT-23
switching regulator. Its unprecedented 2A, 40V internal
switch allows high output currents to be generated in a
small footprint. Intended for space-conscious applica-
tions, the LT1935 switches at 1.2MHz, allowing the use of
tiny, low profile inductors and capacitors 2mm or less in
height. The NPN switch achieves a V
CESAT
of just 180mV
at 2A independent of supply voltage, resulting in high
efficiency even at maximum power levels from a 3V input.
A constant frequency, internally compensated, current
mode PWM architecture results in low, predictable output
noise that is easy to filter. Low ESR ceramic capacitors can
be used on the output, further reducing noise to the
millivolt level. The high voltage switch on the LT1935 is
rated at 40V, making the device ideal for boost converters
up to 38V as well as for single-ended primary inductance
converter (SEPIC) and flyback designs. The device can
generate 5V at up to 1A from a 3.3V supply or 5V at 550mA
from four alkaline cells in a SEPIC design.
The LT1935 is available in a 5-lead SOT-23 package.
Figure 1. 5V to 12V, 600mA Step-Up DC/DC Converter
■
Digital Cameras
■
Battery Backup
■
LCD Bias
■
Local 5V or 12V Supply
■
PC Cards
■
xDSL Power Supply
■
TFT-LCD Bias Supply
, LTC and LT are registered trademarks of Linear Technology Corporation.
ThinSOT is a trademark of Linear Technology Corporation.
GND
V
IN
SW
SHDN
FB
V
IN
5V
D1
L1
4.2
μ
H
84.5k
LT1935
1935 F01
10
μ
F
4.7
μ
F
10k
V
12V
600mA
D1: ON SEMI MBRM120
L1: SUMIDA CDRH5D28-4R2
ON OFF
LOAD CURRENT (mA)
0
E
600
1935 F01b
200
100
300
500
700
400
90
85
80
75
70
65
60
55
50
V
IN
= 5V
V
IN
= 3.3V
Efficiency, V
OUT
= 12V
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LT1935ES5#PBF | 制造商:Linear Technology 功能描述:Conv DC-DC Single Step Up 2.3V to 16V 5-Pin TSOT-23 制造商:Linear Technology 功能描述:DC-DC CONVERTER BOOST 1.2MHZ 制造商:Linear Technology 功能描述:DC-DC CONVERTER, BOOST, 1.2MHZ, SOT-23-5; Primary Input Voltage:16V; No. of Outputs:1; Output Current:3.2A; No. of Pins:5; Operating Temperature Min:-40C; Operating Temperature Max:85C; Operating Temperature Range:-40C to +85C ;RoHS Compliant: Yes 制造商:Linear Technology 功能描述:DC-DC CONVERTER, BOOST, 1.2MHZ, SOT-23-5; Primary Input Voltage:16V; No. of Outputs:1; Output Voltage:38V; Output Current:3.2A; No. of Pins:5; Operating Temperature Min:-40C; Operating Temperature Max:85C; Package / Case:5-TSOT-23 ;RoHS Compliant: Yes |
| LT1935ES5#TR | 功能描述:IC REG BST FLYBK SEPIC TSOT23-5 RoHS:否 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 開(kāi)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(kāi)關(guān):600kHz 電流 - 輸出:500mA 同步整流器:無(wú) 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 |
| LT1935ES5#TRM | 功能描述:IC REG BST FLYBK SEPIC TSOT23-5 RoHS:否 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 開(kāi)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(kāi)關(guān):600kHz 電流 - 輸出:500mA 同步整流器:無(wú) 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 |
| LT1935ES5#TRMPBF | 功能描述:IC REG BST FLYBK SEPIC TSOT23-5 RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 開(kāi)關(guān)穩(wěn)壓器 系列:- 標(biāo)準(zhǔn)包裝:250 系列:- 類型:降壓（降壓） 輸出類型:固定 輸出數(shù):1 輸出電壓:1.2V 輸入電壓:2.05 V ~ 6 V PWM 型:電壓模式 頻率 - 開(kāi)關(guān):2MHz 電流 - 輸出:500mA 同步整流器:是 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:6-UFDFN 包裝:帶卷 (TR) 供應(yīng)商設(shè)備封裝:6-SON（1.45x1） 產(chǎn)品目錄頁(yè)面:1032 (CN2011-ZH PDF) 其它名稱:296-25628-2 |
| LT1935ES5#TRMPBF | 制造商:Linear Technology 功能描述:DC/DC Converter IC 制造商:Linear Technology 功能描述:IC, BOOST DC/DC CONVERTER, 5-TSOT-23 |
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