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参数资料
| 型号： | LTC3614EUDD#TRPBF |
| 厂商： | LINEAR TECHNOLOGY CORP |
| 元件分类： | 稳压器 |
| 英文描述： | 10.5 A SWITCHING REGULATOR, 2700 kHz SWITCHING FREQ-MAX, PQCC24 |
| 封装： | 3 X 5 MM, LEAD FREE, PLASTIC, QFN-24 |
| 文件页数： | 29/30页 |
| 文件大小： | 438K |
| 代理商： | LTC3614EUDD#TRPBF |
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LTC3614
8
3614fa
PIN FUNCTIONS
SRLIM/DDR (Pin 1): Slew Rate Limit. Tying this pin to
ground selects maximum slew rate. Minimum slew rate
is selected when the pin is open. Connecting a resistor
from SRLIM/DDR to ground allows the slew rate to be
continuously adjusted. If SRLIM/DDR is tied to SVIN, DDR
mode is selected. In DDR mode the slew rate limit is set
to maximum.
RT/SYNC (Pin 2): Oscillator Frequency. This pin provides
three ways of setting the constant switching frequency:
1. Connecting a resistor from RT/SYNC to ground will set
the switching frequency based on the resistor value.
2. Driving the RT/SYNC pin with an external clock signal
will synchronize the LTC3614 to the applied frequency.
The slope compensation is automatically adapted to the
external clock frequency.
3. Tying the RT/SYNC pin to SVIN enables the internal
2.25MHz oscillator frequency.
SGND (Pin 3): Signal Ground. All small-signal and compen-
sation components should connect to this ground, which
in turn should connect to PGND at a single point.
PVIN (Pins 4, 10, 11, 17): Power Input Supply. PVIN con-
nects to the source of the internal P-channel power MOSFET.
This pin is independent of SVIN and may be connected to
the same voltage or to a lower voltage supply.
SW (Pins 5, 6, 7, 8, 13, 14, 15, 16): Switch Node. Con-
nection to the inductor. These pins connect to the drains
of the internal power MOSFET switches.
NC (Pins 9, 12): Can be connected to ground or left
open.
SVIN (Pin 18): Signal Input Supply. This pin powers
the internal control circuitry and is monitored by the
undervoltage lockout comparator.
Start-Up from Shutdown with
Prebiased Output (Overvoltage)
(Forced Continuous Mode)
Output Voltage During Sinking
vs Input Voltage (VOUT = 1.8V,
0.47μH Inductor)
TYPICAL PERFORMANCE CHARACTERISTICS V
IN = 3.3V, RT/SYNC = SVIN unless otherwise noted.
VOUT
500mV/DIV
PGOOD
5V/DIV
IL
5A/DIV
50μs/DIV
3614 G31
PREBIASED VOUT = 2.2V
VOUT = 1.2V, IOUT = 0A
VMODE = 1.5V
INPUT VOLTAGE (V)
V
OUT
(V)
1.86
1.84
1.82
1.80
1.78
1.88
2.25
4
1.74
1.76
3.25
2.75
4.5
5.25
3614 G32
–3A, 2MHz, 120°C
–3A, 2MHz, 25°C
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LTC3614IUDD#PBF | 功能描述:IC REG BUCK SYNC ADJ 4A 24QFN RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 开关稳压器 系列:- 设计资源:Design Support Tool 标准包装:1 系列:- 类型:升压（升压） 输出类型:固定 输出数:1 输出电压:3V 输入电压:0.75 V ~ 2 V PWM 型:- 频率 - 开关:- 电流 - 输出:100mA 同步整流器:是 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:SOT-23-5 细型，TSOT-23-5 包装:剪切带 (CT) 供应商设备封装:TSOT-23-5 其它名称:AS1323-BTTT-30CT |
| LTC3614IUDD#TRPBF | 功能描述:IC REG BUCK SYNC ADJ 4A 24QFN RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 开关稳压器 系列:- 设计资源:Design Support Tool 标准包装:1 系列:- 类型:升压（升压） 输出类型:固定 输出数:1 输出电压:3V 输入电压:0.75 V ~ 2 V PWM 型:- 频率 - 开关:- 电流 - 输出:100mA 同步整流器:是 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:SOT-23-5 细型，TSOT-23-5 包装:剪切带 (CT) 供应商设备封装:TSOT-23-5 其它名称:AS1323-BTTT-30CT |
| LTC3614MPUDD#PBF | 制造商:Linear Technology 功能描述:IC REG BUCK SYNC ADJ 4A 24QFN |
| LTC3614MPUDD#TRPBF | 制造商:Linear Technology 功能描述:IC REG BUCK SYNC ADJ 4A 24QFN |
| LTC3615EFE#PBF | 功能描述:IC REG BUCK SYNC ADJ 3A 24TSSOP RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 开关稳压器 系列:- 设计资源:Design Support Tool 标准包装:1 系列:- 类型:升压（升压） 输出类型:固定 输出数:1 输出电压:3V 输入电压:0.75 V ~ 2 V PWM 型:- 频率 - 开关:- 电流 - 输出:100mA 同步整流器:是 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:SOT-23-5 细型，TSOT-23-5 包装:剪切带 (CT) 供应商设备封装:TSOT-23-5 其它名称:AS1323-BTTT-30CT |
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