参数资料
型号: ADP1111ARZ
厂商: Analog Devices Inc
文件页数: 3/15页
文件大小: 0K
描述: IC REG BUCK BOOST INV ADJ 8SOIC
标准包装: 98
类型: 降压(降压),升压(升压),反相
输出类型: 可调式
输出数: 1
输出电压: 1.2 V ~ 30 V
输入电压: 2 V ~ 30 V
频率 - 开关: 72kHz
电流 - 输出: 200mA
同步整流器:
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 8-SOIC(0.154",3.90mm 宽)
包装: 管件
供应商设备封装: 8-SO
ADP1111
ABSOLUTE MAXIMUM RATINGS
PIN DESCRIPTIONS
Parameter
Supply Voltage
SW1 Pin Voltage
SW2 Pin Voltage
Feedback Pin Voltage (ADP1111)
Switch Current
Maximum Power Dissipation
Operating Temperature Range
ADP1111A
Storage Temperature Range
Lead Temperature (Soldering, 10 sec)
Rating
36 V
50 V
?0.5 V to V IN
5.5 V
1.5 A
500 mW
0°C to 70°C
?65°C to +150°C
300°C
Mnemonic
I LIM
V IN
SW1
SW2
Function
For normal conditions this pin is connected to V IN .
When lower current is required, a resistor should be
connected between I LIM and V IN . Limiting the switch
current to 400 mA is achieved by connecting a 220 Ω
resistor.
Input Voltage.
Collector Node of Power Transistor. For step-down
con-figuration, connect to V IN . For step-up configu-
ration, connect to an inductor/diode.
Emitter Node of Power Transistor. For step-down
configuration, connect to inductor/diode. For step-up
configuration, connect to ground. Do not allow this
TYPICAL APPLICATION
GND
pin to go more than a diode drop below ground.
Ground.
3V
INPUT
I LIM
SUMIDA
CD54-220K
22μH
V IN
MBRS120T3
5V
100mA
AO
SET
Auxiliary Gain (GB) Output. The open collector can
sink 300 μA. It can be left open if unused.
Gain Amplifier Input. The amplifier ’s positive input is
connected to SET pin and its negative input is con-
SW1
nected to the 1.25 V reference. It can be left open if
10μF
(OPTIONAL)
ADP1111AR-5
SENSE
GND
SW2
33μF
FB/SENSE
unused.
On the ADP1111 (adjustable) version this pin is con-
nected to the comparator input. On the ADP1111-3.3,
ADP1111-5 and ADP1111-12, the pin goes directly
to the internal application resistor that sets output
Figure 1. 3 V to 5 V Step-Up Converter
ESD CAUTION
voltage.
PIN CONFIGURATIONS
8-Lead Plastic DIP
(N-8)
8-Lead Plastic SOIC
(SO-8)
I LIM 1
8 FB (SENSE)*
I LIM 1
8 FB (SENSE)*
V IN
SW1 3 (Not to Scale) 6 A0
V IN
SW1 3 (Not to Scale) 6 A0
2 ADP1111 7 SET
TOP VIEW
2 ADP1111 7 SET
TOP VIEW
REV. A
3
SW2 4
*FIXED VERSIONS
5 GND
SW2 4
*FIXED VERSIONS
5 GND
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