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ADP5024

Analog Devices
Part Number ADP5024
Manufacturer Analog Devices
Description Regulators
Published Mar 1, 2013
Detailed Description Data Sheet Dual 3 MHz, 1200 mA Buck Regulators with One 300 mA LDO ADP5024 FEATURES Main input voltage range: 2.3 V to...
Datasheet PDF File ADP5024 PDF File

ADP5024
ADP5024


Overview
Data Sheet Dual 3 MHz, 1200 mA Buck Regulators with One 300 mA LDO ADP5024 FEATURES Main input voltage range: 2.
3 V to 5.
5 V Two 1200 mA buck regulators and one 300 mA LDO 24-lead, 4 mm × 4 mm LFCSP package Regulator accuracy: ±1.
8% Factory programmable or external adjustable VOUTx 3 MHz buck operation with forced PWM and automatic PWM/PSM modes BUCK1/BUCK2: output voltage range from 0.
8 V to 3.
8 V LDO: output voltage range from 0.
8 V to 5.
2 V LDO: input supply voltage from 1.
7 V to 5.
5 V LDO: high PSRR and low output noise APPLICATIONS Power for processors, ASICS, FPGAs, and RF chipsets Portable instrumentation and medical devices Space constrained devices GENERAL DESCRIPTION The ADP5024 combines two high performance buck regulators and one low dropout (LDO) regulator in a small, 24-lead, 4 mm × 4 mm LFCSP 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.
Table 1.
Family Models Model Channels ADP5023 2 Buck, 1 LDO ADP5024 2 Buck, 1 LDO ADP5034 2 Buck, 2 LDOs ADP5037 2 Buck, 2 LDOs ADP5033 2 Buck, 2 LDOs with 2 EN pins Maximum Current 800 mA, 300 mA 1.
2 A, 300 mA 1.
2 A, 300 mA 800 mA, 300 mA 800 mA, 300 mA Package LFCSP (CP-24-10) LFCSP (CP-24-10) LFCSP (CP-24-10), TSSOP (RE-28-1) LFCSP (CP-24-10) WLCSP (CB-16-8) The two bucks operate out of phase to reduce the input capacitor requirement.
The low quiescent current, low dropout voltage, and wide input voltage range of the LDO extends the battery life of portable devices.
The ADP5024 LDO maintains power supply rejection greater...


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