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參數(shù)資料
| 型號： | LT1938IDD#PBF |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 4 A SWITCHING REGULATOR, 3300 kHz SWITCHING FREQ-MAX, PDSO10 |
| 封裝： | 3 X 3 MM, LEAD FREE, PLASTIC, MO-229WEED-2, DFN-10 |
| 文件頁數(shù)： | 12/24頁 |
| 文件大?。?/td> | 260K |
| 代理商： | LT1938IDD#PBF |
LT1938
2
1938fa
ELECTRICAL ChARACTERISTICS
VIN, RUN/SS Voltage.................................................25V
BOOST Pin Voltage ...................................................50V
BOOST Pin Above SW Pin.........................................25V
FB, RT, VC Voltage .......................................................5V
BIAS, PG, BD Voltage................................................25V
Operating Junction Temperature Range (Note 2)
LT1938E............................................. –40°C to 125°C
LT1938I.............................................. –40°C to 125°C
Storage Temperature Range................... –65°C to 150°C
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Minimum Input Voltage
●
3
3.6
V
Quiescent Current from VIN
VRUN/SS = 0.2V
0.01
0.5
A
VBIAS = 3V, Not Switching
●
0.4
0.8
mA
VBIAS = 0, Not Switching
1.2
2.0
mA
Quiescent Current from BIAS
VRUN/SS = 0.2V
0.01
0.5
A
VBIAS = 3V, Not Switching
●
0.85
1.5
mA
VBIAS = 0, Not Switching
0
0.1
mA
Minimum Bias Voltage
2.7
3
V
Feedback Voltage
●
1.25
1.24
1.265
1.28
1.29
V
FB Pin Bias Current (Note 3)
●
30
100
nA
FB Voltage Line Regulation
4V < VIN < 25V
0.002
0.02
%/V
The ● denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. VIN = 10V, VRUN/SS = 10V, VBOOST = 15V, VBIAS = 3.3V unless otherwise
noted. (Note 2)
AbSOLUTE MAxIMUM RATINgS
(Note 1)
PIN CONFIgURATION
TOP VIEW
DD PACKAGE
10-LEAD (3mm × 3mm) PLASTIC DFN
10
9
6
7
8
4
5
3
11
2
1
RT
VC
FB
BIAS
PG
BD
BOOST
SW
VIN
RUN/SS
TJMAX = 125°C, θJA = 45°C/W, θJC = 10°C/W
EXPOSED PAD (PIN 11) IS GND, MUST BE SOLDERED TO PCB
ORDER INFORMATION
LEAD FREE FINISH
TAPE AND REEL
PART MARKING*
PACKAGE DESCRIPTION
TEMPERATURE RANGE
LT1938EDD#PBF
LT1938EDD#TRPBF
LDFT
10-Lead (3mm × 3mm) Plastic DFN
–40°C to 125°C
LT1938IDD#PBF
LT1938IDD#TRPBF
LDFT
10-Lead (3mm × 3mm) Plastic DFN
–40°C to 125°C
Consult LTC Marketing for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container.
Consult LTC Marketing for information on non-standard lead based finish parts.
For more information on lead free part marking, go to: http://www.linear.com/leadfree/
For more information on tape and reel specifications, go to: http://www.linear.com/tapeandreel/
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LT1939 | 制造商:LINER 制造商全稱:Linear Technology 功能描述:Monolithic 2A Step-Down Regulator Plus Linear Regulator/Controller |
| LT1939EDD#PBF | 功能描述:IC REG DL BUCK/LINEAR 12DFN RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - 線性 + 切換式 系列:- 標(biāo)準(zhǔn)包裝:2,500 系列:- 拓?fù)?降壓（降壓）同步（3），線性（LDO）（2） 功能:任何功能 輸出數(shù):5 頻率 - 開關(guān):300kHz 電壓/電流 - 輸出 1:控制器 電壓/電流 - 輸出 2:控制器 電壓/電流 - 輸出 3:控制器 帶 LED 驅(qū)動器:無 帶監(jiān)控器:無 帶序列發(fā)生器:是 電源電壓:5.6 V ~ 24 V 工作溫度:-40°C ~ 85°C 安裝類型:* 封裝/外殼:* 供應(yīng)商設(shè)備封裝:* 包裝:* |
| LT1939EDD#TRPBF | 功能描述:IC REG DL BUCK/LINEAR 12DFN RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - 線性 + 切換式 系列:- 標(biāo)準(zhǔn)包裝:2,500 系列:- 拓?fù)?降壓（降壓）同步（3），線性（LDO）（2） 功能:任何功能 輸出數(shù):5 頻率 - 開關(guān):300kHz 電壓/電流 - 輸出 1:控制器 電壓/電流 - 輸出 2:控制器 電壓/電流 - 輸出 3:控制器 帶 LED 驅(qū)動器:無 帶監(jiān)控器:無 帶序列發(fā)生器:是 電源電壓:5.6 V ~ 24 V 工作溫度:-40°C ~ 85°C 安裝類型:* 封裝/外殼:* 供應(yīng)商設(shè)備封裝:* 包裝:* |
| LT1939EDD-PBF | 制造商:LINER 制造商全稱:Linear Technology 功能描述:Monolithic 2A Step-Down Regulator Plus Linear Regulator/Controller |
| LT1939EDD-TRPBF | 制造商:LINER 制造商全稱:Linear Technology 功能描述:Monolithic 2A Step-Down Regulator Plus Linear Regulator/Controller |
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