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LT3024EDE Datasheet

  • LT3024EDE

  • Dual 100mA/500mA Low Dropout, Low Noise, Micropower Regulato...

  • 16頁

  • LINER

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LT3024
Dual 100mA/500mA
Low Dropout, Low Noise,
Micropower Regulator
FEATURES
s
s
s
s
s
s
s
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s
DESCRIPTIO
s
s
s
s
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Low Noise: 20碌V
RMS
(10Hz to 100kHz)
Low Quiescent Current: 30碌A(chǔ)/Output
Wide Input Voltage Range: 1.8V to 20V
Output Current: 100mA/500mA
Very Low Shutdown Current: <0.1
碌
A
Low Dropout Voltage: 300mV at 100mA/500mA
Adjustable Outputs from 1.22V to 20V
Stable with 1碌F/3.3碌F Output Capacitor
Stable with Aluminum, Tantalum or
Ceramic Capacitors
Reverse-Battery Protected
No Reverse Current
No Protection Diodes Needed
Overcurrent and Overtemperature Protected
Thermally Enhanced 16-Lead TSSOP and 12-Lead
(4mm
脳
3mm) DFN Packages
APPLICATIO S
s
s
s
s
s
Cellular Phones
Pagers
Battery-Powered Systems
Frequency Synthesizers
Wireless Modems
, LTC and LT are registered trademarks of Linear Technology Corporation.
The LT
廬
3024 is a dual, micropower, low noise, low drop-
out regulator. With an external 0.01碌F bypass capacitor,
output noise drops to 20碌V
RMS
over a 10Hz to 100kHz
bandwidth. Designed for use in battery-powered systems,
the low 30碌A(chǔ) quiescent current per output makes it an
ideal choice. In shutdown, quiescent current drops to less
than 0.1碌A(chǔ). Shutdown control is independent for each
output, allowing for flexibility in power management. The
device is capable of operating over an input voltage range
of 1.8V to 20V. The device can supply 100mA of output
current from Output 2 with a dropout voltage of 300mV.
Output 1 can supply 500mA of output current with a
dropout voltage of 300mV. Quiescent current is well
controlled in dropout.
The LT3024 regulator is stable with output capacitors as
low as 1碌F for the 100mA output and 3.3碌F for the 500mA
output. Small ceramic capacitors can be used without the
series resistance required by other regulators.
Internal protection circuitry includes reverse-battery pro-
tection, current limiting, thermal limiting and reverse
current protection. The device is available as an adjustable
device with a 1.22V reference voltage. The LT3024 regu-
lator is available in the thermally enhanced 16-lead TSSOP
and 12-lead, low profile (4mm
脳
3mm
脳
0.75mm) DFN
packages.
TYPICAL APPLICATIO
IN
V
IN
3.7V TO
20V
1碌F
SHDN1
SHDN2
BYP1
ADJ1
OUT1
3.3V/2.5V Low Noise Regulators
0.01碌F
10碌F
3.3V AT 500mA
20碌V
RMS
NOISE
10Hz to 100kHz Output Noise
422k
LT3024
OUT2
0.01碌F
BYP2
ADJ2
GND
249k
2.5V AT 100mA
20碌V
RMS
NOISE
V
OUT
100碌V/DIV
261k
10碌F
249k
3024 TA01a
U
20碌V
RMS
3024 TA01b
U
U
3024f
1

LT3024EDE 產(chǎn)品屬性

  • LT3024

  • More Information on LDOs

  • 91

  • 集成電路 (IC)

  • PMIC - 穩(wěn)壓器 - 線性

  • -

  • 正，可調(diào)式

  • 1.22 V ~ 20 V

  • 1.8 V ~ 20 V

  • 0.3V @ 500mA，0.3V @ 100mA

  • 2

  • 500mA，100mA

  • 520mA，110mA

  • -40°C ~ 125°C

  • 表面貼裝

  • 12-WFDFN 裸露焊盤

  • 12-DFN（4x3）

  • 管件

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