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参数资料
| 型号： | LT3493EDCB#TRM |
| 厂商： | LINEAR TECHNOLOGY CORP |
| 元件分类： | 稳压器 |
| 英文描述： | 2.2 A SWITCHING REGULATOR, 815 kHz SWITCHING FREQ-MAX, PDSO6 |
| 封装： | 2 X 3 MM, PLASTIC, MO-229, DFN-6 |
| 文件页数： | 1/20页 |
| 文件大小： | 588K |
| 代理商： | LT3493EDCB#TRM |
LT3493
1
3493fb
TYPICAL APPLICATION
FEATURES
APPLICATIONS
DESCRIPTION
1.2A, 750kHz Step-Down
Switching Regulator in
2mm × 3mm DFN
n Automotive Battery Regulation
n Industrial Control Supplies
n Wall Transformer Regulation
n Distributed Supply Regulation
n Battery-Powered Equipment
L, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.
All other trademarks are the property of their respective owners.
3.3V Step-Down Converter
Efciency
n Wide Input Range: 3.6V to 36V Operating,
40V Maximum
n 1.2A Output Current
n Fixed Frequency Operation: 750kHz
n Output Adjustable Down to 780mV
n Short-Circuit Robust
n Uses Tiny Capacitors and Inductors
n Soft-Start
n Internally Compensated
n Low Shutdown Current: <2μA
n Low VCESAT Switch: 330mV at 1A
n Thermally Enhanced, Low Prole DFN Package
The LT
3493 is a current mode PWM step-down DC/DC
converter with an internal 1.75A power switch. The wide
operating input range of 3.6V to 36V (40V maximum)
makes the LT3493 ideal for regulating power from a wide
variety of sources, including unregulated wall transform-
ers, 24V industrial supplies and automotive batteries.
Its high operating frequency allows the use of tiny, low
cost inductors and ceramic capacitors, resulting in low,
predictable output ripple.
Cycle-by-cycle current limit provides protection against
shorted outputs and soft-start eliminates input current
surge during start-up. The low current (<2μA) shutdown
mode provides output disconnect, enabling easy power
management in battery-powered systems.
VIN
4.2V TO 36V
ON OFF
0.1μF 10μH
32.4k
10μF
3493 TA01a
22pF
1μF
10k
VOUT
3.3V
1.2A, VIN > 12V
0.95A, VIN > 5V
VIN
BOOST
GND
FB
SHDN
SW
LT3493
LOAD CURRENT (A)
EFFICIENCY
(%)
70
80
3493 TA01b
60
50
0.4
0.8
1.2
0.2
0
0.6
1.0
90
65
75
55
85
VIN = 12V
VOUT = 3.3V
L = 10μH
相关PDF资料 |
PDF描述 |
|---|---|
| LT3493EDCB#TR | 2.2 A SWITCHING REGULATOR, 815 kHz SWITCHING FREQ-MAX, PDSO6 |
| LT3513EUHF#TRPBF | 3.5 A SWITCHING REGULATOR, 2220 kHz SWITCHING FREQ-MAX, PQCC38 |
| LT3513EUHF#PBF | 3.5 A SWITCHING REGULATOR, 2220 kHz SWITCHING FREQ-MAX, PQCC38 |
| LT3513IUHF#TRPBF | 3.5 A SWITCHING REGULATOR, 2220 kHz SWITCHING FREQ-MAX, PQCC38 |
| LT3573EMSE#TRPBF | 1.85 A SWITCHING REGULATOR, 1000 kHz SWITCHING FREQ-MAX, PDSO16 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| LT3493EDCBTRMPBF | 制造商:Linear Technology 功能描述:Sw. Regulator 1.2A 750kHz Step-Down DFN6 |
| LT3493EDCB-TRPBF | 制造商:LINER 制造商全称:Linear Technology 功能描述:1.2A, 750kHz Step-Down Switching Regulator in 2mm × 3mm DFN |
| LT3493IDCB | 制造商:LINER 制造商全称:Linear Technology 功能描述:1.2A, 750kHz Step-Down Switching Regulator in 2mm × 3mm DFN |
| LT3493IDCB#PBF | 制造商:Linear Technology 功能描述:BUCK SW REG 1.4A 750KHZ 6D 制造商:Linear Technology 功能描述:DC-DC CONVERTER BUCK 750KHZ 制造商:Linear Technology 功能描述:BUCK, SW REG, 1.4A, 750KHZ, 6DFN 制造商:Linear Technology 功能描述:DC-DC CONVERTER, BUCK, 750KHZ, 1.2A, DFN-6; Primary Input Voltage:36V; No. of Outputs:1; Output Voltage:780mV; Output Current:1.2A; No. of Pins:6; Operating Temperature Min:-40C; Operating Temperature Max:125C; Package / Case:6-DFN;RoHS Compliant: Yes |
| LT3493IDCB#PBF | 制造商:Linear Technology 功能描述:DC-DC CONVERTER, BUCK, 750KHZ, 1.2A, DFN |
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