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參數資料
| 型號： | LT1076IT-5#TR |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類： | 穩壓器 |
| 英文描述： | 3.2 A SWITCHING REGULATOR, 120 kHz SWITCHING FREQ-MAX, PZFM5 |
| 封裝： | PLASTIC, TO-220, 5 PIN |
| 文件頁數： | 1/8頁 |
| 文件大?。?/td> | 108K |
| 代理商： | LT1076IT-5#TR |
LT1076-5
1
10765fc
TYPICAL APPLICATION
FEATURES
APPLICATIONS
DESCRIPTION
5V Step-Down
Switching Regulator
The LT1076-5 is a 2A xed 5V output monolithic bipolar
switching regulator which requires only a few external parts
for normal operation. The power switch, all oscillator and
control circuitry, all current limit components, and an output
monitor are included on the chip. The topology is a classic
positive “buck” conguration but several design innova-
tions allow this device to be used as a positive-to-negative
converter, a negative boost converter, and as a yback con-
verter. The switch output is specied to swing 40V below
ground, allowing the LT1076-5 to drive a tapped inductor
in the buck mode with output currents up to 4A.
The LT1076-5 uses a true analog multiplier in the feedback
loop. This makes the device respond nearly instantaneously
to input voltage uctuations and makes loop gain indepen-
dent of input voltage. As a result, dynamic behavior of the
regulator is signicantly improved over previous designs.
On-chip pulse by pulse current limiting makes the LT1076-
5 nearly bust-proof for output overloads or shorts. The
input voltage range as a buck converter is 8V to 60V, but
a self-boot feature allows input voltages as low as 5V in
the inverting and boost congurations.
The LT1076-5 is available in a low cost 5- and 7-lead TO-
220 packages with frequency pre-set at 100kHz and current
limit at 2.6A. See Application Note 44 for design details.
Basic Positive Buck Converter
n Fixed 5V Output
n 2A On-Board Switch
n 100kHz Switching Frequency
n 2% Output Voltage Tolerance Over Temperature
n Greatly Improved Dynamic Behavior
n Available in Low Cost 5- and 7-Lead Packages
n Only 9.5mA Quiescent Current
n Operates Up to 60V Input
n 5V Output Buck Converter
n Tapped Inductor Buck Converter with 4A Output at
5V
n Positive-to-Negative Converter
, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.
All other trademarks are the property of their respective owners.
LT1076-5
VSW
SENSE
VC
GND
R3
1.5k
C2
0.033
μF
C3
200
μF
100
μH**
MBR340*
MBR330P MAY BE USED
FOR VIN ≤ 25V
COILTRONICS #100-1-52
HURRICANE #HL-AG210LL
VALUE MAY BE REDUCED TO 50
μH
FOR OUTPUT LOADS BELOW 1.5A
8V TO 40V
C1
500
μF
25V
LT1076-5 TA01
VIN
5V
≤1.8A
*
**
+
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相關代理商/技術參數 |
參數描述 |
|---|---|
| LT1076ITPBF | 制造商:Linear Technology 功能描述:Switching Regulator Step-Down 2A TO220-5 |
| LT1076MK | 制造商:Linear Technology 功能描述: |
| LT1077ACN8 | 功能描述:IC PREC OP-AMP MICRPWR SNGL 8DIP RoHS:否 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標準包裝:2,500 系列:- 放大器類型:通用 電路數:2 輸出類型:滿擺幅 轉換速率:350 V/µs 增益帶寬積:180MHz -3db帶寬:320MHz 電流 - 輸入偏壓:12.5µA 電壓 - 輸入偏移:800µV 電流 - 電源:15mA 電流 - 輸出 / 通道:85mA 電壓 - 電源，單路/雙路(±):2.5 V ~ 12.6 V，±1.25 V ~ 6.3 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:8-TSSOP，8-MSOP（0.118"，3.00mm 寬） 供應商設備封裝:8-MSOP 包裝:帶卷 (TR) |
| LT1077ACN8#PBF | 功能描述:IC PREC OP-AMP MICRPWR SNGL 8DIP RoHS:是 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標準包裝:2,500 系列:- 放大器類型:通用 電路數:4 輸出類型:- 轉換速率:0.6 V/µs 增益帶寬積:1MHz -3db帶寬:- 電流 - 輸入偏壓:45nA 電壓 - 輸入偏移:2000µV 電流 - 電源:1.4mA 電流 - 輸出 / 通道:40mA 電壓 - 電源，單路/雙路(±):3 V ~ 32 V，±1.5 V ~ 16 V 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:14-TSSOP（0.173"，4.40mm 寬） 供應商設備封裝:14-TSSOP 包裝:帶卷 (TR) 其它名稱:LM324ADTBR2G-NDLM324ADTBR2GOSTR |
| LT1077AIN8 | 功能描述:IC PREC OP-AMP MICRPWR SNGL 8DIP RoHS:否 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標準包裝:73 系列:Over-The-Top® 放大器類型:通用 電路數:4 輸出類型:滿擺幅 轉換速率:0.07 V/µs 增益帶寬積:200kHz -3db帶寬:- 電流 - 輸入偏壓:1nA 電壓 - 輸入偏移:285µV 電流 - 電源:50µA 電流 - 輸出 / 通道:25mA 電壓 - 電源，單路/雙路(±):2 V ~ 44 V，±1 V ~ 22 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:16-WFDFN 裸露焊盤 供應商設備封裝:16-DFN-EP（5x3） 包裝:管件 |
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