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ADP5034

Analog Devices
Part Number ADP5034
Manufacturer Analog Devices
Description 1200 mA Buck Regulators
Published Apr 12, 2012
Detailed Description Data Sheet Dual 3 MHz, 1200 mA Buck Regulators with Two 300 mA LDOs ADP5034 FEATURES regulators operate in PWM mode w...
Datasheet PDF File ADP5034 PDF File

ADP5034
ADP5034

Overview
Data Sheet Dual 3 MHz, 1200 mA Buck Regulators with Two 300 mA LDOs ADP5034 FEATURES regulators operate in PWM mode when the load is above a pre- Main input voltage range: 2.
3 V to 5.
5 V Two 1200 mA buck regulators and two 300 mA LDOs 24-lead, 4 mm × 4 mm LFCSP or 28-lead TSSOP package defined threshold.
When the load current falls below a predefined threshold, the regulator operates in power save mode (PSM), improving the light load efficiency.
Regulator accuracy: ±1.
8% Factory programmable or external adjustable VOUTx 3 MHz buck operation with forced PWM and auto PWM/PSM Table 1.
Family Models Model Channels Maximum Current Package modes BUCK1/BUCK2: output voltage range from 0.
8 V to 3.
8 V LDO1/LDO2: output voltage range from 0.
8 V to 5.
2 V LDO1/LDO2: input supply voltage from 1.
7 V to 5.
5 V LDO1/LDO2: high PSRR and low output noise ADP5023 2 Buck,1 LDO ADP5024 2 Buck,1 LDO ADP5034 2 Buck,2 LDOs 800 mA, 300 mA 1.
2 A, 300 mA 1.
2 A, 300 mA LFCSP (CP-24-10) LFCSP (CP-24-10) LFCSP (CP-24-10), TSSOP (RE-28-1) APPLICATIONS ADP5037 2 Buck,2 LDOs 800 mA, 300 mA LFCSP (CP-24-10) Power for processors, ASICS, FPGAs, and RF chipsets Portable instrumentation and medical devices ADP5033 2 Buck,2 LDOs with 800 mA, 2 EN pins 300 mA WLCSP (CB-16-8) Space constrained devices The two bucks operate out of phase to reduce the input capaci- GENERAL DESCRIPTION The ADP5034 combines two high performance buck regulators and two low dropout (LDO) regulators.
It is available in either a 24-lead 4 mm × 4 mm LFCSP or a 28-lead TSSOP package.
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.
The high switching frequency of the buck regulators enables tiny multilayer external components and minimizes the board space.
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