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参数资料
| 型号： | LT3724MPFE#TRPBF |
| 厂商： | Linear Technology |
| 文件页数： | 1/26页 |
| 文件大小： | 0K |
| 描述： | IC REG CTRLR BST INV PWM 16TSSOP |
| 标准包装： | 2,500 |
| PWM 型： | 电流模式 |
| 输出数： | 1 |
| 频率 - 最大： | 225kHz |
| 占空比： | 100% |
| 电源电压： | 4 V ~ 60 V |
| 降压： | 是 |
| 升压： | 是 |
| 回扫： | 无 |
| 反相： | 是 |
| 倍增器： | 无 |
| 除法器： | 无 |
| Cuk： | 无 |
| 隔离： | 无 |
| 工作温度： | -55°C ~ 125°C |
| 封装/外壳： | 16-TSSOP（0.173"，4.40mm）裸露焊盘 |
| 包装： | 带卷 (TR) |
LT3724
High Voltage, Current Mode
Switching Regulator Controller
Wide Input Range: 4V to 60V
Output Voltages up to 36V (Step-Down)
Burst Mode ? Operation: <100μA Supply Current
10μA Shutdown Supply Current
±1.3% Reference Accuracy
200kHz Fixed Frequency
Drives N-Channel MOSFET
Programmable Soft-Start
Programmable Undervoltage Lockout
Internal High Voltage Regulator for Gate Drive
Thermal Shutdown
Current Limit Unaffected by Duty Cycle
16-Pin Thermally Enhanced TSSOP Package
Industrial Power Distribution
12V and 42V Automotive and Heavy Equipment
High Voltage Single Board Systems
Distributed Power Systems
Avionics
Telecom Power
FEATURES
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APPLICATIONS
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TYPICAL APPLICATION
DESCRIPTION
The LT ? 3724 is a DC/DC controller used for medium power,
low part count, low cost, high efficiency supplies. It of-
fers a wide 4V-60V input range (7.5V minimum startup
voltage) and can implement step-down, step-up, inverting
and SEPIC topologies.
The LT3724 includes Burst Mode operation, which re-
duces quiescent current below 100μA and maintains
high efficiency at light loads. An internal high voltage bias
regulator allows for simple biasing and can be back driven
to increase efficiency.
Additional features include fixed frequency current mode
control for fast line and load transient response; a gate driver
capable of driving large N-channel MOSFETs; a precision
undervoltage lockout function; 10μA shutdown current;
short-circuit protection; and a programmable soft-start
function that directly controls output voltage slew rates at
startup which limits inrush current, minimizes overshoot
and facilitates supply sequencing.
L , LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and
Burst Mode is a trademark of Linear Technology Corporation. All other trademarks are the property
of their respective owners. Protected by U.S. Patents including 5731694, 6498466, 6611131.
10 ?
C SS
V IN
30V TO
60V
C IN
68μF
680pF
40.2k
120pF
4.99k
1M
68.1k
200k
93.1k
High Voltage Step-Down Regulator
V IN BOOST
0.22μF
TG Si7852
LT3724
SHDN SW
47μH
SS3H9
Burst_EN V CC
1μF
V FB PGND
V C SENSE +
1000pF
SGND SENSE –
0.025 ?
+
V OUT
24V
75W
C OUT
330μF
95
90
85
80
75
70
65
0.1
Efficiency and Power Loss
vs Load Current
EFFICIENC Y
LOSS
V IN = 48V
1
LOAD CURRENT (A)
12
10
8
6
4
2
0
10
3724 TA01a
3724 TA01b
3724fd
1
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LT3726EGN | 制造商:Linear Technology 功能描述: |
| LT373L | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Optoelectronic |
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