The official website - Shenzhen Mingjiada Electronic Co., LTD
The ADP2230ACPZ is a dual-channel, 2 MHZ, 800 mA, synchronous low quiescent current step-down regulator launched by (ADI). The following are its core features:
Input voltage range: 2.3V to 6.5V
Fixed and adjustable output voltage options
Fixed output voltage pair options: 1.2V / 1.8V, 1.2V / 3.3V, 1.8V / 3.3V
Adjustable output voltage range: 0.8V to 6V
Minimum guaranteed continuous output current: 800 mA
The efficiency is as high as 94%
The low quiescent current of the two power supply channels is 15 μA
Save Mode (PSM
Low turn-off current: 0.1 μA (typical value
100% duty cycle, achieving low differential pressure operation
The SYNC pin switches the frequency option
2 MHz fixed pulse width modulation (PWM) mode
2 MHz PSM/PWM automatic conversion mode
External clock synchronization from 1.5 MHz to 2.5 MHz
Enable an input with a precision threshold for each output
180° phase-shifted PWM output can achieve the minimum VIN ripple
Current limiting and thermal shutdown (TSD) protection
Fast Output Discharge (QOD
10-pin, 3mm × 3mm × 0.75mm LFCSP package
Overview
The ADP2230ACPZ is an integrated device featuring two high-efficiency, low static current, 800 mA, step-down DC-DC converters, available in a compact 10-pin 3 mm × 3 mm LFCSP package. The entire solution only requires five small external components. When the ADP2230ACPZ uses three 0603 capacitors and two 2mm × 2mm inductors, the total area of the solution is approximately 48mm ², making it the smallest size solution to meet the requirements of various portable applications.
The ADP2230ACPZ step-down regulator adopts a proprietary high-speed current mode and constant-frequency PWM control scheme, featuring outstanding stability and transient response. To reduce the input current ripple, the step-down output operates in a phase-out mode. To ensure the longest battery life for portable applications, the ADP2230ACPZ offers a variable frequency power-saving mode that can reduce the switching frequency under low load conditions.
During the turn-off period of logic control, the input and output are disconnected, and the current drawn from the input source is less than 0.1 μA. The ADP2230ACPZ operates with an input voltage ranging from 2.3V to 6.5V, allowing it to be powered by multiple alkaline batteries, NiMH batteries, lithium batteries or other standard power sources.
The ADP2230ACPZ offers multiple options to set the operating frequency. To achieve maximum efficiency under light load, the ADP2230ACPZ can operate at a lower switching frequency in PSM mode and automatically switch to PWM mode as the load increases. When noise is more important than efficiency, the ADP2230 can be forced to operate in PWM mode only (2 MHz). The ADP2230ACPZ can also be synchronized with an external clock ranging from 1.5 MHz to 2.5 MHz via the SYNC pin. When using external clock synchronization control, the two step-down outputs are in phase with the applied clock signal.
The ADP2230ACPZ is equipped with built-in power switches, synchronous rectifiers and compensation components, which can significantly reduce the number of external devices and improve efficiency. Other important protection features include: under-voltage lockout, which is used to prevent deep battery discharge; Internal soft start is used to prevent input current overshoot during startup. It also features an integrated and switch-resistance type QOD function for automatic discharge of the output when the device is disabled. Short-circuit protection and thermal overload protection circuits can prevent devices from being damaged under adverse conditions.
Application scenarios
Portable and battery-powered devices
Automatic Meter Reader (WSN
POS devices and transaction processing devices
Mobile phone
Digital cameras and audio equipment
Medical instruments
Medium format tablet computer
Performance parameters
Product: ADP2230ACPZ
Function: Lower blood pressure
Output configuration: positive
Topology: Voltage reduction
Output type: Adjustable
Output number: 2
Voltage - Input (minimum) : 2.3V
Voltage - Input (maximum) : 6.5V
Voltage - Output (minimum value/fixed) : 0.8V
Voltage - Output (maximum value) : 6V
Current - Output: 800mA
Frequency - Switch: 2MHz
Synchronous rectifier: Yes
Operating temperature: -40°C to 85°C (TA)
Installation type: Surface mount type
Packaging/Housing: 10-LFCSP
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Official website: www.mjdic.com
