參數(shù)資料
型號(hào): LT3957EUHE#TRPBF
廠商: LINEAR TECHNOLOGY CORP
元件分類: 穩(wěn)壓器
英文描述: SWITCHING REGULATOR, PQCC36
封裝: 5 X 6 MM, LEAD FREE, PLASTIC, QFN-36
文件頁(yè)數(shù): 25/28頁(yè)
文件大?。?/td> 359K
代理商: LT3957EUHE#TRPBF
LT3957
6
3957f
INTVCC Line Regulation
INTVCC Dropout Voltage
vs Current, Temperature
INTVCC vs Temperature
INTVCC Minimum Output
Current Limit vs VIN
INTVCC Load Regulation
TYPICAL PERFORMANCE CHARACTERISTICS T
A ≈ TJ = 25°C, unless otherwise noted.
TEMPERATURE (°C)
–50
5.0
INTV
CC
(V)
5.1
5.2
5.3
5.4
0
50
75
–25
25
100
125
3957 G13
1
0
10
20
40
60
10
100
90
80
30
50
70
TJ = 125°C
INTVCC = 3V
VIN (V)
3957 G14
INTV
CC
CURRENT
(mA)
INTVCC LOAD (mA)
0
4.8
5.0
5.1
5.2
5.3
30
50
60
4.9
10
20
40
3957 G15
INTV
CC
VOLTAGE
(V)
VIN = 6V
VIN (V)
0
INT
V
CC
VOL
TAGE
(V)
5.25
5.20
10
15
25
5
20
30
35
40
5.15
5.10
5.30
3957 G16
INTVCC LOAD (mA)
0
DROPOUT
VOL
TAGE
(mV)
600
400
500
200
300
5
101520
100
0
700
3957 G17
125°C
25°C
0°C
–40°C
75°C
VIN = 5V
Internal Switch On-Resistance
vs Temperature
TEMPERATURE (°C)
–50
ON-RESIST
ANCE
(mΩ)
35
40
45
30
25
–25
25
0
50
75
100
125
10
5
0
20
50
15
3957 G18
Internal Switch On-Resistance
vs INTVCC
SEPIC Typical Start-Up
Waveforms
SEPIC FBX Frequency Foldback
Waveforms During Overcurrent
INTVCC (V)
3
ON-RESIST
ANCE
(mΩ)
27.8
28.0
27.6
27.4
27.2
45
7
68
27.0
26.8
26.6
28.2
3957 G19
5ms/DIV
SEE TYPICAL APPLICATION: 5V TO 16V INPUT,
12V OUTPUT SEPIC CONVERTER
VOUT
5V/DIV
IL1A + IL1B
2A/DIV
3957 G20
VIN = 12V
50μs/DIV
VOUT
10V/DIV
VSW
20V/DIV
IL1A + IL1B
5A/DIV
3957 G21
VIN = 12V
SEE TYPICAL APPLICATION: 5V TO 16V INPUT,
12V OUTPUT SEPIC CONVERTER
相關(guān)PDF資料
PDF描述
LT3957IUHE#PBF SWITCHING REGULATOR, PQCC36
LT3958IUHE#PBF SWITCHING REGULATOR, PQCC36
LT3958EUHE#PBF SWITCHING REGULATOR, PQCC36
LT3958EUHE#TRPBF SWITCHING REGULATOR, PQCC36
LT4180MPGN#PBF POWER SUPPLY SUPPORT CKT, PDSO24
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LT3957IUHE#PBF 功能描述:IC REG MULTI CONFIG ADJ 36VQFN 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:2,500 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,1.5V,1.8V,2.5V 輸入電壓:2.7 V ~ 20 V PWM 型:- 頻率 - 開(kāi)關(guān):- 電流 - 輸出:50mA 同步整流器:是 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:10-TFSOP,10-MSOP(0.118",3.00mm 寬)裸露焊盤 包裝:帶卷 (TR) 供應(yīng)商設(shè)備封裝:10-MSOP 裸露焊盤
LT3957IUHE#TRPBF 功能描述:IC REG MULTI CONFIG ADJ 36VQFN 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:2,500 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,1.5V,1.8V,2.5V 輸入電壓:2.7 V ~ 20 V PWM 型:- 頻率 - 開(kāi)關(guān):- 電流 - 輸出:50mA 同步整流器:是 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:10-TFSOP,10-MSOP(0.118",3.00mm 寬)裸露焊盤 包裝:帶卷 (TR) 供應(yīng)商設(shè)備封裝:10-MSOP 裸露焊盤
LT3957IUHEPBF 制造商:LINER 制造商全稱:Linear Technology 功能描述:Boost, Flyback, SEPIC and Inverting Converter with 5A, 40V Switch
LT3957IUHETRPBF 制造商:LINER 制造商全稱:Linear Technology 功能描述:Boost, Flyback, SEPIC and Inverting Converter with 5A, 40V Switch
LT3958 制造商:LINER 制造商全稱:Linear Technology 功能描述:Monolithic High Voltage Isolated Flyback Converter No External Start-Up Resistor