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ADP5037ACPZ-R7 数据手册 - ADI（亚德诺）
制造商:
ADI（亚德诺）
分类:
DC/DC转换器
封装:
LFCSP-24
描述:
Analog DevicesAnalog Devices 的这些多输出调节器构成其电源管理系列的一部分。 此系列调节器提供完整的电源解决方案和高度集成的电源 IC。 这些设备实现可靠的电源解决方案，用于射频、高速和精密模拟产品，所有产品均采用紧凑型封装。 它们还特别适合用于 FPGA 和处理器。 Analog Devices 的多输出调节器具有 I²C 控制，可实现电压调节、排序和监控。 因此，它们可提高转换效率。它们结合以下功能，例如： \- 降压 \- 升压 \- 降压-升压开关调节器 \- 电池充电器 \- 自主背光控制 \- 低噪声 LDO 调节器 \- 实时时钟 ### 多输出稳压器，Analog Devices
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引脚图在P7P27Hot
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焊接温度在P6
功能描述在P1P7P27
技术参数、封装参数在P1P3P4P5P6
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ADP5037ACPZ-R7数据手册
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Data Sheet ADP5037
Rev. D | Page 5 of 28
Parameter Symbol Test Conditions/Comments Min Typ Max Unit
VOLTAGE FEEDBACK
V
FB3
, V
FB4
0.491 0.5 0.509 V
DROPOUT VOLTAGE
4
V
DROPOUT
V
OUT3
= V
OUT4
= 5.2 V, I
OUT3
= I
OUT4
= 300 mA
50
mV
V
OUT3
= V
OUT4
= 3.3 V, I
OUT3
= I
OUT4
= 300 mA 75 140 mV
V
OUT3
= V
OUT4
= 2.5 V, I
OUT3
= I
OUT4
= 300 mA 100 mV
V
OUT3
= V
OUT4
= 1.8 V, I
OUT3
= I
OUT4
= 300 mA 180 mV
CURRENT-LIMIT THRESHOLD
5
I
LIMIT3
, I
LIMIT4
335 600 mA
ACTIVE PULL-DOWN R
PDWN-L
Channel disabled 600 Ω
OUTPUT NOISE
Regulator LDO1 NOISE
LDO1
10 Hz to 100 kHz, V
IN3
= 5 V, V
OUT3
= 2.8 V 100 µV rms
Regulator LDO2 NOISE
LDO2
10 Hz to 100 kHz, V
IN4
= 5 V, V
OUT4
= 1.2 V 60 µV rms
POWER SUPPLY REJECTION
RATIO
PSRR
Regulator LDO1 10 kHz, V
IN3
= 3.3 V, V
OUT3
= 2.8 V, I
OUT3
= 1 mA 60 dB
100 kHz, V
IN3
= 3.3 V, V
OUT3
= 2.8 V, I
OUT3
= 1 mA
62
dB
1 MHz, V
IN3
= 3.3 V, V
OUT3
= 2.8 V, I
OUT3
= 1 mA 63 dB
Regulator LDO2 10 kHz, V
IN4
= 1.8 V, V
OUT4
= 1.2 V, I
OUT4
= 1 mA 54 dB
100 kHz, V
IN4
= 1.8 V, V
OUT4
= 1.2 V, I
OUT4
= 1 mA 57 dB
1 MHz, V
IN4
= 1.8 V, V
OUT4
= 1.2 V, I
OUT4
= 1 mA 64 dB
1
All limits at temperature extremes are guaranteed via correlation using standard statistical quality control (SQC).
2
This is the input current into VIN3/VIN4, which is not delivered to the output load.
3
Based on an endpoint calculation using 1 mA and 300 mA loads.
4
Dropout voltage is defined as the input-to-output voltage differential when the input voltage is set to the nominal output voltage. This applies only to output voltages
above 1.7 V.
5
Current-limit threshold is defined as the current at which the output voltage drops to 90% of the specified typical value. For example, the current limit for a 3.0 V
output voltage is defined as the current that causes the output voltage to drop to 90% of 3.0 V, or 2.7 V.
INPUT AND OUTPUT CAPACITOR, RECOMMENDED SPECIFICATIONS
T
A
= −40°C to +125°C, unless otherwise specified.
Table 5.
Parameter Symbol Min Typ Max Unit
NOMINAL INPUT AND OUTPUT CAPACITOR RATINGS
BUCK1, BUCK2 Input Capacitor Ratings C
MIN1
, C
MIN2
4.7 40 µF
BUCK1, BUCK2 Output Capacitor Ratings
C
MIN1
, C
MIN2
10
40
µF
LDO
1
Input and Output Capacitor Ratings C
MIN3
, C
MIN4
1.0 µF
CAPACITOR ESR R
ESR
0.001 1 Ω
1
The minimum input and output capacitance should be greater than 0.70 µF over the full range of operating conditions. The full range of operating conditions in the
application must be considered during device selection to ensure that the minimum capacitance specification is met. X7R- and X5R-type capacitors are recommended;
Y5V and Z5U capacitors are not recommended for use because of their poor temperature and dc bias characteristics.
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