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參數(shù)資料
| 型號(hào)： | LTC3025 |
| 廠商： | Linear Technology Corporation |
| 英文描述： | 500mA, Low Voltage, Very Low Dropout Linear Regulator |
| 中文描述： | 500mA的，低電壓，非常低壓差線性穩(wěn)壓器 |
| 文件頁數(shù)： | 1/16頁 |
| 文件大小： | 235K |
| 代理商： | LTC3025 |
1
LT3021/LT3021-1.2/
LT3021-1.5/LT3021-1.8
500mA, Low Voltage,
Very Low Dropout
Linear Regulator
3021fa
TEMPERATURE (
°
C)
–50
M
1.1
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
3021 TA02
25
0
–25
50
75
125
100
I
L
= 500mA
APPLICATIU
FEATURES
TYPICAL APPLICATIO
U
DESCRIPTIO
U
■
V
IN
Range: 0.9V to 10V
■
Dropout Voltage: 160mV Typical
■
Output Current: 500mA
■
Adjustable Output (V
REF
= V
OUT(MIN)
= 200mV)
■
Fixed Output Voltages: 1.2V, 1.5V, 1.8V
■
Stable with Low ESR, Ceramic Output Capacitors
(3.3
μ
F Minimum)
■
0.2% Load Regulation from 0mA to 500mA
■
Quiescent Current: 120
μ
A (Typ)
■
3
μ
A Typical Quiescent Current in Shutdown
■
Current Limit Protection
■
Reverse-Battery Protection
■
No Reverse Current
■
Thermal Limiting with Hysteresis
■
16-Pin DFN (5mm
×
5mm) and 8-Lead
SO Packages
1.8V to 1.5V, 500mA VLDO Regulator
■
Low Current Regulators
■
Battery-Powered Systems
■
Cellular Phones
■
Pagers
■
Wireless Modems
The LT
3021 is a very low dropout voltage (VLDO
TM
) linear
regulator that operates from input supplies down to 0.9V.
This device supplies 500mA of output current with a
typical dropout voltage of 160mV. The LT3021 is ideal for
low input voltage to low output voltage applications,
providing comparable electrical efficiency to that of a
switching regulator.
The LT3021 regulator optimizes stability and transient
response with low ESR, ceramic output capacitors as
small as 3.3
μ
F. Other LT3021 features include 0.05%
typical line regulation and 0.2% typical load regulation. In
shutdown, quiescent current typically drops to 3
μ
A.
Internal protection circuitry includes reverse-battery pro-
tection, current limiting, thermal limiting with hysteresis,
and reverse-current protection. The LT3021 is available as
an adjustable output device with an output range down to
the 200mV reference. Three fixed output voltages, 1.2V,
1.5V and 1.8V, are also available.
The LT3021 regulator is available in the low profile
(0.75mm) 16-pin (5mm
×
5mm) DFN package with ex-
posed pad and the 8-lead SO package.
, LTC and LT are registered trademarks of Linear Technology Corporation. VLDO is a
trademark of Linear Technology Corporation. All other trademarks are the property of their
respective owners.
IN
SHDN
SENSE
3.3
μ
F
3021 TA01
OUT
V
IN
1.8V
GND
LT3021-1.5
V
1.5V
500mA
3.3
μ
F
Minimum Input Voltage
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LT3021 | 500mA, Low Voltage, Very Low Dropout Linear Regulator |
| LT3021-1.2 | 500mA, Low Voltage, Very Low Dropout Linear Regulator |
| LT3021-1.5 | 500mA, Low Voltage, Very Low Dropout Linear Regulator |
| LT3021-1.8 | 500mA, Low Voltage, Very Low Dropout Linear Regulator |
| LT3021EDH | 500mA, Low Voltage, Very Low Dropout Linear Regulator |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LTC3025-1 | 制造商:LINER 制造商全稱:Linear Technology 功能描述:500mA Micropower VLDO Linear Regulators Fast Transient Recovery |
| LTC3025-1_1 | 制造商:LINER 制造商全稱:Linear Technology 功能描述:500mA Micropower VLDO Linear Regulators Fast Transient Recovery |
| LTC3025-2 | 制造商:LINER 制造商全稱:Linear Technology 功能描述:500mA Micropower VLDO Linear Regulators Fast Transient Recovery |
| LTC3025-3 | 制造商:LINER 制造商全稱:Linear Technology 功能描述:500mA Micropower VLDO Linear Regulators Fast Transient Recovery |
| LTC3025-4 | 制造商:LINER 制造商全稱:Linear Technology 功能描述:500mA Micropower VLDO Linear Regulators Fast Transient Recovery |
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