ADP5034 Series
Dual 3 MHz, 1200mA Buck Regulator with Two 300 mA LDOs
Manufacturer: Analog Devices Inc./Maxim Integrated
Catalog
Dual 3 MHz, 1200mA Buck Regulator with Two 300 mA LDOs
| Part | Voltage - Output 1 (Min) | Current - Output 1 | Voltage - Output 1 (Max) | w/Supervisor | Mounting Type | Frequency - Switching | Topology | Package Name | Voltage - Output 2 (Minimum) | Voltage - Output 2 (Maximum) | Current - Output 2 | Voltage (Output 3) (Max) | Voltage (Output 3) (Min) | Current (Output 3) | w/LED Driver | Operating Temperature (Max) | Operating Temperature (Min) | Package Width | Package Features | Package Length | Voltage - Supply (Minimum) | Voltage - Supply (Maximum) | Number of Outputs | w/Sequencer | Package / Case | Voltage - Output 1 | Voltage (Output 3) | Voltage - Output 2 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 Analog Devices Inc./Maxim Integrated | 800 mV | 1.2 A | 3.8 V | No | Surface Mount | 3 MHz | Linear (LDO) (2) Step-Down (Buck) Synchronous (2) | 28-TSSOP 28-TSSOP-EP | 0.8 V | 3.8 V | 1.2 A | 5.2 V | 0.8 V | 300 mA | No | 125 °C | -40 °C | 4.4 mm | Exposed Pad | 0.173 in | 1.7 V | 5.5 V | 4 | No | ||||
 Analog Devices Inc./Maxim Integrated | 800 mV | 1.2 A | 3.8 V | No | Surface Mount | 3 MHz | Linear (LDO) (2) Step-Down (Buck) Synchronous (2) | 28-TSSOP 28-TSSOP-EP | 0.8 V | 3.8 V | 1.2 A | 5.2 V | 0.8 V | 300 mA | No | 125 °C | -40 °C | 4.4 mm | Exposed Pad | 0.173 in | 1.7 V | 5.5 V | 4 | No | ||||
Analog Devices Inc./Maxim Integrated | 800 mV | 1.2 A | 3.8 V | No | Surface Mount | 3 MHz | Linear (LDO) (2) Step-Down (Buck) Synchronous (2) | 28-TSSOP 28-TSSOP-EP | 0.8 V | 3.8 V | 1.2 A | 5.2 V | 0.8 V | 300 mA | No | 125 °C | -40 °C | 4.4 mm | Exposed Pad | 0.173 in | 1.7 V | 5.5 V | 4 | No | ||||
 Analog Devices Inc./Maxim Integrated | 800 mV | 1.2 A | 3.8 V | No | Surface Mount | 3 MHz | Linear (LDO) (2) Step-Down (Buck) Synchronous (2) | 28-TSSOP 28-TSSOP-EP | 0.8 V | 3.8 V | 1.2 A | 5.2 V | 0.8 V | 300 mA | No | 125 °C | -40 °C | 4.4 mm | Exposed Pad | 0.173 in | 1.7 V | 5.5 V | 4 | No | ||||
 Analog Devices Inc./Maxim Integrated | 800 mV | 1.2 A | 3.8 V | No | Surface Mount | 3 MHz | Linear (LDO) (2) Step-Down (Buck) Synchronous (2) | 24-LFCSP-WQ | 0.8 V | 3.8 V | 1.2 A | 4.75 V | 0.8 V | 300 mA | No | 125 °C | -40 °C | 4 mm | 4 mm | 1.7 V | 5.5 V | 4 | No | 24-WFQFN Exposed Pad CSP | ||||
 Analog Devices Inc./Maxim Integrated | 800 mV | 1.2 A | 3.8 V | No | Surface Mount | 3 MHz | Linear (LDO) (2) Step-Down (Buck) Synchronous (2) | 24-LFCSP-WQ | 0.8 V | 3.8 V | 1.2 A | 5.2 V | 0.8 V | 300 mA | No | 125 °C | -40 °C | 4 mm | 4 mm | 1.7 V | 5.5 V | 4 | No | 24-WFQFN Exposed Pad CSP | ||||
Analog Devices Inc./Maxim Integrated | 800 mV | 1.2 A | 3.8 V | No | Surface Mount | 3 MHz | Linear (LDO) (2) Step-Down (Buck) Synchronous (2) | 24-LFCSP-WQ | 0.8 V | 3.8 V | 1.2 A | 4.75 V | 0.8 V | 300 mA | No | 125 °C | -40 °C | 4 mm | 4 mm | 1.7 V | 5.5 V | 4 | No | 24-WFQFN Exposed Pad CSP | ||||
Analog Devices Inc./Maxim Integrated | 800 mV | 1.2 A | 3.8 V | No | Surface Mount | 3 MHz | Linear (LDO) (2) Step-Down (Buck) Synchronous (2) | 24-LFCSP-WQ | 0.8 V | 3.8 V | 1.2 A | 5.2 V | 0.8 V | 300 mA | No | 125 °C | -40 °C | 4 mm | 4 mm | 1.7 V | 5.5 V | 4 | No | 24-WFQFN Exposed Pad CSP | ||||
Analog Devices Inc./Maxim Integrated | 1.2 A | No | Surface Mount | 3 MHz | Linear (LDO) (2) Step-Down (Buck) Synchronous (2) | 24-LFCSP-WQ | 1.2 A | 300 mA | No | 125 °C | -40 °C | 4 mm | 4 mm | 1.7 V | 5.5 V | 4 | No | 24-WFQFN Exposed Pad CSP | 1.2 V | 2.8 V | 3.3 V |
Description
AI
The ADP5034 combines two high performance buck regulators and two low dropout (LDO) regulators in a small, 24-lead 4 mm × 4 mm LFCSP (QFN) 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 is around the nominal value. 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 capaci-tor requirement. The low quiescent current, low dropout voltage, and wide input voltage range of the ADP5034 LDOs extend the battery life of portable devices. The ADP5034 LDOs maintain power supply rejection greater than 60 dB for frequencies as high as 10 kHz while operating with a low headroom voltage.Regulators in the ADP5034 are activated though dedicated enable pins. The default output voltages can be externally set in the adjustable version, or factory programmable in the fixed voltage version, and can be set to a wide range of preset valuesAPPLICATIONSPower for processors, ASICS, FPGAs, and RF chipsetsPortable instrumentation and medical devicesSpace constrained devices