参数资料
| 型号： | LT1528CT |
| 厂商： | Linear Technology |
| 文件页数： | 6/12页 |
| 文件大小： | 0K |
| 描述： | IC REG LDO 3.3V/ADJ 3A TO220-5 |
| 产品培训模块： | More Information on LDOs |
| 标准包装： | 50 |
| 稳压器拓扑结构： | 正，固定式和可调式 |
| 输出电压： | 3.3V，3.3 V ~ 14.15 V |
| 输入电压： | 3.9 V ~ 15 V |
| 电压 - 压降（标准）： | 0.57V @ 3A |
| 稳压器数量： | 1 |
| 电流 - 输出： | 3A |
| 电流 - 限制（最小）： | 3.2A |
| 工作温度： | 0°C ~ 125°C |
| 安装类型： | 通孔 |
| 封装/外壳： | TO-220-5 成形引线 |
| 供应商设备封装： | TO-220-5 |
| 包装： | 管件 |
LT1528
TYPICAL PERFORMANCE CHARACTERISTICS
80
Ripple Rejection
0
Load Regulation
70
60
–5
V IN = V OUT (NOMINAL) + 1V
ΔI LOAD = 1mA TO 3A
50
40
30
20
10
C OUT = 4 × 47μF
SOLID TANTALUM
C OUT = 47μF
SOLID TANTALUM
I OUT = 1.5A
V IN = 6V + 50mV RMS RIPPLE
–10
–15
–20
–25
0
10
100
1k 10k
100k
1M
–30
–50 –25
0
25
50
75
100
125
FREQUENCY (Hz)
Transient Response
1528 TPC19
TEMPERATURE (°C)
Transient Response
1528 TPC20
100
50
0
–50
–100
3
2
1
V IN = 5V
C IN = 3.3μF
C OUT = 47μF
100
50
0
–50
–100
3
2
1
V IN = 5V
C IN = 3.3μF
C OUT = 4 × 47μF
0
0
20 40 60 80 100 120 140 160 180 200
0
0
20 40 60 80 100 120 140 160 180 200
TIME (μs)
1528 TPC21
PIN FUNCTIONS
OUTPUT (Pin 1): The OUTPUT pin supplies power to the
load. A minimum output capacitor of 3.3μF is required
to prevent oscillations. Larger values will be needed to
achieve the transient performance required by high speed
microprocessors. See the Applications Information sec-
tion for more on output capacitance and reverse output
characteristics.
SENSE (Pin 2): The SENSE pin is the input to the error
ampli?er. Optimum regulation will be obtained at the point
where the SENSE pin is connected to the OUTPUT pin. For
most applications the SENSE pin is connected directly to
the OUTPUT pin at the regulator. In critical applications
small voltage drops caused by the resistance (R P ) of PC
TIME (μs)
1528 TPC22
normally degrade regulation, may be eliminated by con-
necting the SENSE pin to the OUTPUT pin at the load as
shown in Figure 1 (Kelvin Sense Connection). Note that
the voltage drop across the external PC traces will add
to the dropout voltage of the regulator. The SENSE pin
bias current is 150μA at the nominal regulated output
voltage. See SENSE Pin Current vs Temperature in the
Typical Performance Characteristics section. This pin is
internally clamped to – 0.6V (one V BE ).
The SENSE pin can also be used with a resistor divider
to achieve output voltages above 3.3V. See the Applica-
tions Information section for information on adjustable
operation.
traces between the regulator and the load, which would
1528fb
6
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LT1528CT#PBF | 功能描述:IC REG LDO 3.3V/ADJ 3A TO220-5 RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - 线性 系列:- 标准包装:1 系列:- 稳压器拓扑结构:正，固定式 输出电压:8V 输入电压:10.5 V ~ 23 V 电压 - 压降（标准）:1.7V @ 40mA 稳压器数量:1 电流 - 输出:100mA（最小值） 电流 - 限制（最小）:- 工作温度:0°C ~ 125°C 安装类型:表面贴装 封装/外壳:8-SOIC（0.154"，3.90mm 宽） 供应商设备封装:8-SOIC 包装:剪切带 (CT) 产品目录页面:1075 (CN2011-ZH PDF) 其它名称:296-24390-1 |
| LT1528CTPBF | 制造商:Linear Technology 功能描述:LDO Regulator 3.3V 3A Fast TO220-5 |
| LT1529 | 制造商:Linear Technology 功能描述: |
| LT1529-3.3 | 制造商:LINER 制造商全称:Linear Technology 功能描述:3A Low Dropout Regulators with Micropower Quiescent Current and Shutdown |
| LT1529-5 | 制造商:LINER 制造商全称:Linear Technology 功能描述:3A Low Dropout Regulators with Micropower Quiescent Current and Shutdown |
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