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ADP5037

Analog Devices
Part Number ADP5037
Manufacturer Analog Devices
Description 800 mA Buck Regulators
Published Jul 30, 2013
Detailed Description Data Sheet FEATURES Main input voltage range: 2.3 V to 5.5 V Two 800 mA buck regulators and two 300 mA LDOs 24-lead, 4 m...
Datasheet PDF File ADP5037 PDF File

ADP5037
ADP5037

Overview
Data Sheet FEATURES Main input voltage range: 2.
3 V to 5.
5 V Two 800 mA buck regulators and two 300 mA LDOs 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 auto PWM/PSM 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 Dual 3 MHz, 800 mA Buck Regulators with Two 300 mA LDOs ADP5037 load is above a predefined threshold, the buck regulators operate in PWM mode.
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 ADP5023 ADP5024 ADP5034 ADP5037 ADP5033 Channels 2 Buck, 1 LDO 2 Buck, 1 LDO 2 Buck, 2 LDOs 2 Buck, 2 LDOs 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) APPLICATIONS Power for processors, ASICS, FPGAs, and RF chipsets Portable instrumentation and medical devices Space constrained devices GENERAL DESCRIPTION The ADP5037 combines two high performance buck regulators and two low dropout (LDO) regulators 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 and the AVIN CAVIN 0.
1µF 2.
3V TO 5.
5V VIN1 C1 4.
7µF ON OFF EN1 EN1 BUCK1 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 ADP5037 LDOs extend the battery life of portabl...


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