参数资料
型号: ADP1740-1.5-EVALZ
厂商: Analog Devices Inc
文件页数: 1/20页
文件大小: 0K
描述: BOARD EVAL FOR ADP1740-1.5
标准包装: 1
每 IC 通道数: 1 - 单
输出电压: 1.5V
电流 - 输出: 2A
输入电压: 1.6 ~ 3.6 V
稳压器类型: 正,固定式
工作温度: -40°C ~ 125°C
板类型: 完全填充
已供物品:
已用 IC / 零件: ADP1740

2 A, Low V IN , Low Dropout
Linear Regulator
Data Sheet
FEATURES
TYPICAL APPLICATION CIRCUITS
Maximum output current: 2 A
Input voltage range: 1.6 V to 3.6 V
V IN = 1.8V
V OUT = 1.5V
Low shutdown current: 2 μA
Low dropout voltage: 160 mV @ 2 A load
Initial accuracy: ±1%
4.7μF
16
VIN
1 VIN
15 14 13
VIN VOUT VOUT
VOUT 12
4.7μF
Accuracy over line, load, and temperature: ±2%
7 fixed output voltage options with soft start:
0.75 V to 2.5 V (ADP1740)
Adjustable output voltage options with soft start:
100k?
PG
2 VIN
3 VIN
4 EN
ADP1740
TOP VIEW
(Not to Scale)
VOUT 11
VOUT 10
SENSE 9
0.75 V to 3.3 V (ADP1741)
High PSRR
PG
5
GND
6
SS
7
NC
8
65 dB @ 1 kHz
65 dB @ 10 kHz
54 dB @ 100 kHz
23 μV rms at 0.75 V output
10nF
Figure 1. ADP1740 with Fixed Output Voltage, 1.5 V
Stable with small 4.7 μF ceramic output capacitor
Excellent load and line transient response
V IN = 1.8V
V OUT = 0.5V(1 + R1/R2)
Current-limit and thermal overload protection
4.7μF
16
15
14
13
4.7μF
Power-good indicator
Logic-controlled enable
VIN
1 VIN
VIN VOUT VOUT
VOUT 12
Reverse current protection
100k?
2 VIN
ADP1741
VOUT 11
TOP VIEW
APPLICATIONS
Server computers
PG
3 VIN
4 EN
(Not to Scale)
VOUT 10
ADJ 9
R1
Memory components
Telecommunications equipment
PG
5
GND
6
SS
7
NC
8
R2
Network equipment
DSP/FPGA/microprocessor supplies
Instrumentation equipment/data acquisition systems
GENERAL DESCRIPTION
The ADP1740/ADP1741 are low dropout (LDO) CMOS linear
regulators that operate from 1.6 V to 3.6 V and provide up to 2 A
of output current. These low V IN /V OUT LDOs are ideal for regu-
lation of nanometer FPGA geometries operating from 2.5 V down
to 1.8 V I/O rails, and for powering core voltages down to 0.75 V.
Using an advanced, proprietary architecture, the ADP1740/
ADP1741 provide high power supply rejection ratio (PSRR) and
low noise, and achieve excellent line and load transient response
with only a small 4.7 μF ceramic output capacitor.
The ADP1740 is available in seven fixed output voltage options.
The ADP1741 is an adjustable version that allows output
10nF
Figure 2. ADP1741 with Adjustable Output Voltage, 0.75 V to 3.3 V
voltages ranging from 0.75 V to 3.3 V via an external divider.
The ADP1740/ADP1741 allow an external soft start capacitor
to be connected to program the startup. A digital power-good
output allows power system monitors to check the health of the
output voltage.
The ADP1740/ADP1741 are available in a 16-lead, 4 mm ×
4 mm LFCSP, making them not only very compact solutions,
but also providing excellent thermal performance for applica-
tions that require up to 2 A of output current in a small, low
profile footprint.
Rev. F
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarks and registered trademarks are the property of their respective owners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700 ?2008–2013 Analog Devices, Inc. All rights reserved.
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