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參數(shù)資料
| 型號(hào)： | LT1076MK |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | Synchronous 4-Bit Binary Counters 16-SOIC 0 to 70 |
| 中文描述： | 3.2 A SWITCHING REGULATOR, 125 kHz SWITCHING FREQ-MAX, MBFM4 |
| 封裝： | METAL CAN, TO-3, 4 PIN |
| 文件頁數(shù)： | 1/4頁 |
| 文件大?。?/td> | 170K |
| 代理商： | LT1076MK |
1
LT1076-5
S
FEATURE
U
A
O
PPLICATI
TYPICAL
Basic Positive Buck Converter
5V Step-Down
Switching Regulator
D
The LT1076-5 is a 2A fixed 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” configuration but several design
innovations allow this device to be used as a positive-to-
negative converter, a negative boost converter, and as a
flyback converter. The switch output is specified 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 instanta-
neously to input voltage fluctuations and makes loop gain
independent of input voltage. As a result, dynamic behav-
ior of the regulator is significantly 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 configurations.
The LT1076-5 is available in a low cost 5-lead TO-220
package with frequency pre-set at 100kHz and current
limit at 2.6A. See Application Note 44 for design details.
U
ESCRIPTIO
I
Fixed 5V Output
I
2A On-Board Switch
I
100kHz Switching Frequency
I
2% Output Voltage Tolerance Over Temperature
I
Greatly Improved Dynamic Behavior
I
Available in Low Cost 5-Lead Package
I
Only 9.5mA Quiescent Current
I
Operates Up to 60V Input
I
5V Output Buck Converter
I
Tapped Inductor Buck Converter with 4A Output
at 5V
I
Positive-to-Negative Converter
U
S
A
O
PPLICATI
LT1076-5
V
SW
SENSE
V
C
GND
R3
1.5k
C2
0.033
μ
F
C3
200
μ
F
+
100
μ
H**
MBR340*
MBR330P MAY BE USED
FOR V
IN
≤
25V
COILTRONICS #100-1-52
HURRICANE #HL-AG210LL
VALUE MAY BE REDUCED TO 50
μ
H
FOR OUTPUT LOADS BELOW 1.5A
8V TO 40V
+
C1
500
μ
F
25V
LT1076-5 TA01
V
IN
5V
≤
1.8A
*
**
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LT1076HVIR | GT 19C 19#12 SKT PLUG |
| LT1076-5 | Circular Connector; MIL SPEC:MIL-C-26482, Series I, Solder; Body Material:Aluminum; Series:PT08; Number of Contacts:12; Connector Shell Size:14; Connecting Termination:Solder; Circular Shell Style:Right Angle Plug |
| LT1076HV-5 | RADIATION HARDENED HIGH EFFICIENCY, 5 AMP SWITCHING REGULATORS |
| LT1076HVC-5 | RADIATION HARDENED HIGH EFFICIENCY, 5 AMP SWITCHING REGULATORS |
| LT1076HVCK | RADIATION HARDENED HIGH EFFICIENCY, 5 AMP SWITCHING REGULATORS |
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