- 您现在的位置：买卖IC网 > PDF目录377707 > LT1573CS8 (LINEAR TECHNOLOGY CORP) Low Dropout PNP Regulator Driver PDF资料下载
参数资料
| 型号： | LT1573CS8 |
| 厂商： | LINEAR TECHNOLOGY CORP |
| 元件分类： | 基准电压源/电流源 |
| 英文描述： | Low Dropout PNP Regulator Driver |
| 中文描述： | 1.27 V-6.8 V ADJUSTABLE POSITIVE LDO REGULATOR, PDSO8 |
| 封装： | 0.150 INCH, PLASTIC, SO-8 |
| 文件页数： | 1/16页 |
| 文件大小： | 200K |
| 代理商： | LT1573CS8 |
1
LT1573
Low Dropout
PNP Regulator Driver
Figure 1. 3.3V, 5A Microprocessor Supply
I
Low Cost Solution for High Current, Low Dropout
Regulators
I
Fast Transient Response Needs Much Less
Bulk Capacitance
I
Latching Overload Protection Minimizes
Heat Sink Size
I
Precision Output Voltage (1%)
I
Single Supply Operation: V
IN
= 2.8V to 10V
I
Small Surface Mount Package
I
Capable of Very Low Dropout Voltage (<0.2V)
I
Fixed or Adjustable Outputs
I
Shutdown
I
3.3V to 2.5V Regulators
I
Microprocessor Power Sources
I
Post Regulator for Switching Supplies
I
High Efficiency Linear Regulators
I
Ultralow Dropout Regulators
I
Low Voltage Linear Regulators
The LT
1573 is a regulator driver IC designed to provide
a low cost solution for applications requiring high current,
low dropout and fast transient response. When combined
with an external PNP power transistor, this device pro-
vides load current up to 5A with dropout voltages as low
as 0.35V. The LT1573 circuitry is designed for extremely
fast transient response. This greatly reduces bulk storage
capacitance when the regulator is used in applications
with fast, high current load transients.
To keep cost and complexity low, the LT1573 uses a new
time-delayed latching overcurrent protection technique
that requires no external current sense resistor. Base drive
is limited for instantaneous protection, and a time-delayed
latch protects the regulator from continuous short
circuits.
The LT1573 is available as an adjustable regulator with an
output range of 1.27V to 6.8V and with fixed output
voltages of 2.5V, 2.8V and 3.3V. Output accuracy is better
than 1% to meet the critical regulation requirement of fast
microprocessors. A special 8-pin, fused-lead surface mount
package is used to minimize regulator footprint and pro-
vide adequate heat sinking.
, LTC and LT are registered trademarks of Linear Technology Corporation.
COMP
V
OUT
V
IN
DRIVE
FB
LATCH
SHDN
GND
LT1573
+
C
TIME
C
OUT2
220
μ
F
TANT
C
OUT1
1
μ
CER
×
24
C
100pF
V
IN
5V
R
C
1k
R
D
24
V
3.3V
GND
1573 F01
R
B
50
R1
1.6k
R2
1k
LOAD
+
+
Q
MOTOROLA
D45H11
V
= 1.265V (1 + R1/R2)
FOR T < 45
°
C, C
OUT1
= 24
×
1
μ
F Y5V CERAMIC SURFACE MOUNT CAPACITORS.
FOR T > 45
°
C, C
= 24
×
1
μ
F X7R CERAMIC SURFACE MOUNT CAPACITORS.
PLACE C
OUT1
IN THE MICROPROCESSOR SOCKET CAVITY
C
IN
100
μ
F
TANT
Transient Response for
0.2A to 5A Output Load Step
10
μ
s/DIV
1573 F01a
50mV/DIV
2.5A/DIV
FEATURES
DESCRIPTIOU
APPLICATIU
TYPICAL APPLICATIO
U
相关PDF资料 |
PDF描述 |
|---|---|
| LT1573CS8-2.5 | Low Dropout PNP Regulator Driver |
| LT1573CS8-2.8 | Low Dropout PNP Regulator Driver |
| LT1573CS8-3.3 | Low Dropout PNP Regulator Driver |
| LT1573I | Low Dropout PNP Regulator Driver |
| LT1573IS8 | Low Dropout PNP Regulator Driver |
相关代理商/技术参数 |
参数描述 |
|---|---|
| LT1573CS8#PBF | 功能描述:IC REG CTRLR SGL POS ADJ 8-SOIC RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - 线性晶体管驱动器 系列:- 产品培训模块:More Information on LDOs 标准包装:2,500 系列:- 类型:正，固定式 输出数:2 输出电压:2.8V，3.3V 电流 - 电源:12mA 输入电压:5 V ~ 22 V 工作温度:0°C ~ 70°C 封装/外壳:16-SOIC（0.154"，3.90mm 宽） 供应商设备封装:16-SOIC 包装:带卷 (TR) |
| LT1573CS8#TR | 功能描述:IC REG CTRLR SGL POS ADJ 8SOIC RoHS:否 类别:集成电路 (IC) >> PMIC - 稳压器 - 线性晶体管驱动器 系列:- 产品培训模块:More Information on LDOs 标准包装:2,500 系列:- 类型:正，固定式 输出数:2 输出电压:2.8V，3.3V 电流 - 电源:12mA 输入电压:5 V ~ 22 V 工作温度:0°C ~ 70°C 封装/外壳:16-SOIC（0.154"，3.90mm 宽） 供应商设备封装:16-SOIC 包装:带卷 (TR) |
| LT1573CS8#TRPBF | 功能描述:IC REG CTRLR SGL POS ADJ 8-SOIC RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - 线性晶体管驱动器 系列:- 产品培训模块:More Information on LDOs 标准包装:2,500 系列:- 类型:正，固定式 输出数:2 输出电压:2.8V，3.3V 电流 - 电源:12mA 输入电压:5 V ~ 22 V 工作温度:0°C ~ 70°C 封装/外壳:16-SOIC（0.154"，3.90mm 宽） 供应商设备封装:16-SOIC 包装:带卷 (TR) |
| LT1573CS8-2.5 | 功能描述:IC REG CTRLR SGL 2.5V 8-SOIC RoHS:否 类别:集成电路 (IC) >> PMIC - 稳压器 - 线性晶体管驱动器 系列:- 产品培训模块:More Information on LDOs 标准包装:2,500 系列:- 类型:正，固定式 输出数:2 输出电压:2.8V，3.3V 电流 - 电源:12mA 输入电压:5 V ~ 22 V 工作温度:0°C ~ 70°C 封装/外壳:16-SOIC（0.154"，3.90mm 宽） 供应商设备封装:16-SOIC 包装:带卷 (TR) |
| LT1573CS8-2.5#PBF | 功能描述:IC REG CTRLR SGL 2.5V 8-SOIC RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - 线性晶体管驱动器 系列:- 产品培训模块:More Information on LDOs 标准包装:2,500 系列:- 类型:正，固定式 输出数:2 输出电压:2.8V，3.3V 电流 - 电源:12mA 输入电压:5 V ~ 22 V 工作温度:0°C ~ 70°C 封装/外壳:16-SOIC（0.154"，3.90mm 宽） 供应商设备封装:16-SOIC 包装:带卷 (TR) |
发布紧急采购，3分钟左右您将得到回复。