Features and Benefits
- Input voltage range: 2.3 V to 5.5 V
- Two 800 mA buck regulators and two 300 mA LDOs
- Tiny, 16-ball, 2 mm × 2 mm WLCSP package
- Regulator accuracy: ±1.8%
- Factory programmable VOUTx
- 3 MHz buck operation with forced PWM and auto PWM/PSM modes
- BUCK1/BUCK2: output voltage range from 0.8 V to 3.3 V
- LDO1/LDO2: output voltage range from 0.8 V to 3.3V
- LDO1/LDO2: low input supply voltage from 1.7 V to 5.5 V
- LDO1/LDO2: high PSRR and low output noise
The ADP5033 combines two high performance buck regulators and two low dropout regulators (LDO) in a tiny, 16-ball, 2 mm × 2 mm WLCSP to meet demanding performance and board space requirements.
The high switching frequency of the buck regulators enables tiny multilayer external components and minimizes the board space. When the MODE pin is set high, the buck regulators operate in forced PWM mode. When the MODE pin is set low, the buck regulators operate in PWM mode when the load current is above a predefined threshold. When the load current falls below a predefined threshold, the regulator operates in power save mode (PSM), improving the light load efficiency. The two bucks operate out of phase to reduce the input capacitor requirement and noise. The low quiescent current, low dropout voltage, and wide input voltage range of the ADP5033 LDO extend the battery life of portable devices. The ADP5033 LDOs maintain power supply rejection greater than 60 dB for frequencies as high as 10 kHz while operating with a low headroom voltage.
The two bucks operate out of phase to reduce the input capacitor requirement and noise.
The low quiescent current, low dropout voltage, and wide input voltage range of the ADP5033 LDO extend the battery life of portable devices. The ADP5033 LDOs maintain power supply rejection greater than 60 dB for frequencies as high as 10 kHz while operating with a low headroom voltage.
The regulators in the ADP5033 are activated by the ENA and ENB pins. The specific channels controlled by ENA and ENB are set by factory programming. A high voltage level applied to the enable pins activates the regulators. The default output voltages are factory programmable and can be set to a wide range of options.
- Power for processors, ASICS, FPGAs, and RF chipsets
- Portable instrumentation and medical devices
- Space constrained devices
Product Lifecycle Recommended for New Designs
This product has been released to the market. The data sheet contains all final specifications and operating conditions. For new designs, ADI recommends utilization of these products.
Evaluation Kits (1)
The ADP5033 evaluation board is a two-step-down regulator with a two-LDO solution that enables evaluation of the ADP5033. The evaluation board is available in standard voltage options.
The ADP5033 uses a proprietary high speed, current mode, constant frequency PWM control scheme for excellent stability and transient response. To ensure the longest battery life in portable applications, the ADP5033 features a power save mode (PSM) that reduces the switching frequency under light load conditions, as well as the option to change the mode to fixed PWM operation. The 3 MHz switching frequency minimizes the size of the external components.
The low quiescent current, low dropout voltage, and wide input voltage range of the ADP5033 LDO extends the battery life of portable devices.
Documentation & Resources
Tools & Simulations
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Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.