ADP1111: Micropower Step Up/Down Switching Regulator; Adjustable and Fixed 3.3 V, 5 V, 12 V
The ADP1111 is part of a family of step-up/step-down switching regulators that operates from an input voltage supply of 2 V to 12 V in step-up mode and up to 30 V in step-down mode. The ADP1111 can be ...More
ADP1111: Micropower Step Up/Down Switching Regulator; Adjustable and Fixed 3.3 V, 5 V, 12 V
Product Description
The ADP1111 is part of a family of step-up/step-down switching regulators that operates from an input voltage supply of 2 V to 12 V in step-up mode and up to 30 V in step-down mode. The ADP1111 can be programmed to operate in step-up/step-down or inverting applications with only 3 external components.
The fixed outputs are 3.3 V, 5 V and 12 V; and an adjustable version is also available. The ADP1111 can deliver 100 mA at 5 V from a 3 V input in step-up mode, or it can deliver 200 mA at 5 V from a 12 V input in step-down mode.
Maximum switch current can be programmed with a single resistor, and an open collector gain block can be arranged in multiple configuration for low battery detection, as a post linear regulator, undervoltage lockout, or as an error amplifier.
If input voltages are lower than 2 V, see the ADP1110.
Features
- Operates from 2 V to 30 V Input Voltage Range
- 72 kHz Frequency Operation
- Utilizes Surface Mount Inductors
- Very Few External Components Required
- Operates in Step-Up/Step-Down or
Inverting Mode
- Low Battery Detector
- User Adjustable Current Limit
- Internal 1 A Power Switch
- Fixed or Adjustable Output Voltage
- 8-Pin DIP or SO-8 Package
Diagrams
- Enlarge
- Обозначения и трафареты для печатной платы
Functional Block Diagram for ADP1111
Micropower Step Up/Down Switching Regulator; Adjustable and Fixed 3.3 V, 5 V, 12 V
Functional Block Diagram for ADP1111
ADP2504 - 1000 mA, 2.5 MHz Buck-Boost DC-to-DC Converter
ADP2503 - 600 mA, 2.5 MHz Buck-Boost DC-to-DC Converter
| Part# | Vin Range | Vout Preset Options | Vout Adj Options | Iout (max) | Isw (Peak) | Supply Current (max) | Switching Frequency | Step Down | Step Up | Inverting | Pkg | Product Description | Price* (1000-4999) | Pos Supply |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ADP1111 | 2V-30V | 12.0V, 3.3V, 5.0V | 1.2V to 30V, 1.2V to Vin | 1.5A | 1.5A | 110µA | 70 kHz | Yes | Yes | Yes | Plastic DIP-8, SOIC-8 | Micropower Step Up/Down/Inverting Switching Regulator; Adjustable or Fixed 3.3V, 5V, 12V | $2.05 | +2 to +30 |
| ADP1611 | 2.5V-5.5V | --- | Vin to 20V | 1.2A | 1.2A | 600µA | 1.2 MHz | - | Yes | - | MSOP-8 | 20 V,1.2 MHz Step-Up DC-to-DC Switching Converter | $1.14 | +2.5 to +5.5 |
| ADP1610 | 2.5V-5.5V | --- | Vin to 12V | 1.2A | 1.2A | 600µA | 700 kHz or 1.2 MHz | - | Yes | - | MSOP-8 | 1.2 MHz DC-DC Step-Up (Boost) Switching Converter w/ Integrated Power Switch | $1.27 | +2.5 to +5.5 |
| ADP2102 | 2.7V-5.5V | 0.8V, 1.0V, 1.25V, 1.2V, 1.375V, 1.5V, 1.875V, 1.8V | 0.8V to 3.3V | 0.6A | - | 99µA | 3 MHz | Yes | - | - | LFCSP-8 | 3 MHz Synchronous Step-Down DC-to-DC Converter | $1.23 | +2.7 to +5.5 |
| ADP3051 | 2.7V-5.5V | --- | 0.8V to 5.5V | 0.5A | - | 300µA | 550 kHz | Yes | - | - | MSOP-8 | 500 mA PWM Step-Down DC-DC Converter with Synchronous Rectifier | $2.65 | +2.7 to +5.5 |
| ADP2105 | 2.7V-5.5V | 1.2V, 1.5V, 1.8V, 3.3V | 0.8V to Vin | 1A | - | 30µA | 1.2 MHz | Yes | - | - | LFCSP-16 | 1A Synchronous Step-Down DC-DC Converter | $1.13 | +2.7 to +5.5 |
| ADP2106 | 2.7V-5.5V | 1.2V, 1.5V, 1.8V, 3.3V | 0.8V to Vin | 1.5A | - | 30µA | 1.2 MHz | Yes | - | - | LFCSP-16 | 1.5A Synchronous Step-Down DC-DC Converter | $1.25 | +2.7 to +5.5 |
| ADP2107 | 2.7V-5.5V | 1.2V, 1.5V, 1.8V, 3.3V | 0.8V to Vin | 2A | - | 30µA | 1.2 MHz | Yes | - | - | LFCSP-16 | 2A Synchronous Step-Down DC-DC Converter | $1.32 | +2.7 to +5.5 |
| ADP3050 | 3.6V-30V | 3.3V, 5.0V | 1.25V to 12V | 1.5A | - | 1.5mA | 200 kHz | Yes | Yes | Yes | SOIC-8 | 200 kHz, 1 Amp, High-Voltage Step-Down Switching Regulator | $1.80 | +3.6 to +30 |
* The pricing listed here is provided only for budgetary purposes as recommended list price in U.S.
Dollars in the United States ex factor per unit for the stated volume. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.
** Pricing is currently unavailable. Click on the product number to see the Product Page for additional information.
ADP1111 Model Options
Help
- "Pre-Release": модель микросхемы еще не запущена в серийное производство, однако можно получить образцы.
- Производство: модель производится, доступна для покупки и заказа образцов.
- Завершение продаж: запланировано снятие модели микросхемы с производства, но в течение некоторого ограниченного времени покупка еще возможна.
- Снято с производства: Микросхема снята с производства и не доступна для приобретения. Другие варианты, указанные в таблице, все еще производятся (если их статус любой, кроме "снято с производства")
Для более подробного описания корпуса и материалов - см. Package Site
- Коммерческое исполнение: 0…70°С
- Военное исполнение: от -55 до +125 градусов по Цельсию
- Индустриальное исполнение: диапазоны рабочих температур могут быть разные у разных моделей. См. техническое описание (datasheet)
- Automotive: -40 to +125 °С
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**Sample availability may be better than production availability. Please enter samples into your cart to check sample availability.


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