参数资料
型号: ADP124ARHZ-3.3-R7
厂商: ANALOG DEVICES INC
元件分类: 固定正电压单路输出LDO稳压器
英文描述: 5.5V INPUT, 500 MA, LOW QUIESCENT CURRENT, CMOS LINEAR REGULATOR W/31 FIXED-OUTPUT VOLTAGES No of Pins: 8 Temperature Range: Ind
中文描述: 3.3 V FIXED POSITIVE LDO REGULATOR, 0.23 V DROPOUT, PDSO8
封装: ROHS COMPLIANT, MO-187AAT, MSOP-8
文件页数: 1/20页
文件大小: 648K
代理商: ADP124ARHZ-3.3-R7
5.5 V Input, 500 mA, Low Quiescent
Current, CMOS Linear Regulators
ADP124/ADP125
Rev. A
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Tel: 781.329.4700
Fax: 781.461.3113
2009–2010 Analog Devices, Inc. All rights reserved.
FEATURES
Input voltage supply range: 2.3 V to 5.5 V
500 mA maximum output current
Fixed and adjustable output voltage versions
1% initial accuracy
Up to 31 fixed-output voltage options available
from 1.75 V to 3.3 V
Adjustable-output voltage range from 0.8 V to 5.0 V
Very low dropout voltage: 130 mV
Low quiescent current: 45 A
Low shutdown current: <1 A
Excellent PSRR performance: 60 dB at 100 kHz
Excellent load/line transient response
Optimized for small 1.0 μF ceramic capacitors
Current limit and thermal overload protection
Logic controlled enable
Compact 8-lead exposed paddle MSOP and LFCSP packages
APPLICATIONS
Digital camera and audio devices
Portable and battery-powered equipment
Automatic meter reading (AMR) meters
GPS and location management units
Medical instrumentation
Point of load power
TYPICAL APPLICATION CIRCUITS
2
4
1
5
8
VOUT = 3.3V
VIN = 5.5V
VOUT
VIN
VOUT
SENSE
NC
GND
VIN
EN
C2
C1
ADP124
OFF
ON
7
3
6
08476-
001
Figure 1. ADP124 with Fixed Output Voltage
2
4
1
5
8
VOUT = 3.3V
VIN = 5.5V
VOUT
VIN
ADJ
NC
GND
VIN
EN
C2
R1
R2
C1
ADP125
7
3
6
08476-
002
OFF
ON
Figure 2. ADP 125 with Adjustable Output Voltage
GENERAL DESCRIPTION
The ADP124/ADP125 are low quiescent current, low dropout
linear regulators. They are designed to operate from an input
voltage between 2.3 V and 5.5 V and to provide up to 500 mA
of output current. The low 130 mV dropout voltage at a 500 mA
load improves efficiency and allows operation over a wide input
voltage range.
The low 210 μA of quiescent current with a 500 mA load makes the
ADP124/ADP125 ideal for battery-operated portable equipment.
The ADP124 is capable of 31 fixed-output voltages from 1.75 V
to 3.3 V. The ADP125 is the adjustable version of the device and
allows the output voltage to be set between 0.8 V and 5.0 V by
an external voltage divider.
The ADP124/ADP125 are specifically designed for stable operation
with tiny 1 F ceramic input and output capacitors to meet the
requirements of high performance, space constrained applications.
The ADP124/ADP125 have an internal soft start that gives a
constant start-up time of 350 s. Short-circuit protection and
thermal overload protection circuits prevent damage in adverse
conditions. The ADP124/ADP125 are available in 8-lead
exposed paddle MSOP and LFCSP packages. When compared
with the standard MSOP and LFCSP packages, the exposed
paddle MSOP and LFCSP packages have lower thermal resistance
JA). The lower thermal resistance package allows the ADP124/
ADP125 to meet the needs of a variety of portable applications
while minimizing the rise in junction temperature.
相关PDF资料
PDF描述
ADP125ARHZ 5.5V INPUT, 500 MA, LOW QUIESCENT CURRENT, CMOS LINEAR REGULATOR W/EXTERNAL VOLTAGE DIVIDER No of Pins: 8 Temperature Range: Ind
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ADS-119MC 1-CH 12-BIT FLASH METHOD ADC, PARALLEL ACCESS, CDIP24
相关代理商/技术参数
参数描述
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