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ISL80112

更新时间： 2024-09-16 14:57:15
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瑞萨 - RENESAS /
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17页 1089K
描述
Ultra Low Dropout 2A Low Input Voltage NMOS LDOs

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ISL80112 数据手册

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DATASHEET  
ISL80111, ISL80112, ISL80113  
Ultra Low Dropout 1A, 2A, 3A Low Input Voltage NMOS LDOs  
FN7841  
Rev.4.01  
Jun 12, 2020  
The ISL80111, ISL80112, and ISL80113 are ultra low dropout  
Features  
LDOs providing the optimum balance between performance, size  
and power consumption in size constrained designs for data  
communication, computing, storage and medical applications.  
These LDOs are specified for 1A, 2A, and 3A of output current and  
• Ultra low dropout: 75mV at 3A, (typical)  
• Excellent V PSRR: 70dB at 1kHz (typical)  
IN  
• ±1.6% assured V  
accuracy for -40ºC < T < +125ºC  
OUT  
J
are optimized for low voltage conversions. Operating with a V of  
IN  
• Very fast load transient response  
0.7V to 3.6V and with a legacy 2.9V to 5.5V on the BIAS, the V  
OUT  
is adjustable from 0.5V to 3.3V. With a V PSRR greater than  
40dB at 100kHz makes these LDOs an ideal choice in noise  
IN  
• Extensive protection and reporting features  
• V range: 0.7V to 3.6V, V  
IN  
range: 0.5V to 3.3V  
OUT  
sensitive applications. The guaranteed ±1.6% V  
accuracy  
OUT  
overall conditions lend these parts to supplying an accurate  
voltage to the latest low voltage digital ICs.  
• Small 10 Ld 3x3 DFN package  
Applications  
An enable input allows the part to be placed into a low quiescent  
current shutdown mode. A submicron CMOS process is utilized for  
this product family to deliver best-in-class analog performance  
and overall value for applications in need of input voltage  
conversions typically below 2.5V. It also has the superior load  
transient regulation unique to a NMOS power stage. These LDOs  
consume significantly lower quiescent current as a function of  
load compared to bipolar LDOs.  
• Noise-sensitive instrumentation and medical systems  
• Data acquisition and data communication systems  
• Storage, telecommunications and server equipment  
• Low voltage DSP, FPGA and ASIC core power supplies  
• Post-regulation of switched mode power supplies  
Related Literature  
For a full list of related documents, visit our website:  
• ISL80111, ISL80112, and ISL80113 device pages  
100  
90  
80  
70  
60  
50  
40  
30  
20  
10  
0
3A  
2A  
1A  
ISL80111, ISL80112, ISL80113  
1.0V  
1.2V ±5%  
1
2
9
VOUT  
VOUT  
VOUT  
VIN  
VIN  
VIN  
C
10µF  
C
10  
IN  
OUT  
10µF  
3.3V ±10%  
VBIAS  
4
VBIAS  
6
3
C
PGOOD  
PG  
BIAS  
1µF  
R
3
1.0kΩ  
7
ADJ  
ENABLE  
EN  
R
4
GND  
1.0kΩ  
5
OPEN-DRAIN COMPATIBLE  
-40  
25  
85  
°
125  
TEMPERATURE ( C)  
FIGURE 2. DROPOUT VOLTAGE OVER-TEMP AND I  
FIGURE 1. TYPICAL APPLICATION SCHEMATIC  
OUT  
100  
80  
60  
40  
20  
0
1.015  
1.010  
1.005  
1.000  
0.995  
0.990  
0.985  
I
= 1A  
OUT  
I
= 0A  
OUT  
I
= 2A  
OUT  
I
= 3A  
OUT  
BIAS = 5V  
V
V
C
= 3.3V  
IN  
OUT  
OUT  
= 2.5V  
= 10µF  
-40  
0
25  
85  
125  
100  
1k  
10k  
FREQUENCY (Hz)  
100k  
1M  
TEMPERATURE (°C)  
FIGURE 3. V PSRR vs LOAD CURRENT (ISL80113)  
IN  
FIGURE 4. V  
vs TEMPERATURE  
ADJ  
FN7841 Rev.4.01  
Jun 12, 2020  
Page 1 of 16  
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