PDF ADP5133 Data sheet ( Hoja de datos )

Número de pieza	ADP5133
Descripción	800 mA Buck Regulators
Fabricantes	Analog Devices
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No Preview Available ! Data Sheet Dual 3 MHz, 800 mA Buck Regulators in WLCSP ADP5133 FEATURES Input voltage range: 2.3 V to 5.5 V Two 800 mA buck regulators Tiny, 16-ball, 2 mm × 2 mm WLCSP 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 APPLICATIONS Power for processors, ASICs, FPGAs, and RF chipsets Portable instrumentation and medical devices Space constrained devices GENERAL DESCRIPTION The ADP5133 combines two high performance buck regulators 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 and the buck regulators operate in PWM mode, the load current is above a predefined threshold. When the load current falls below a predefined threshold, the regulators operate 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 regulators in the ADP5133 are activated through dedicated enable pins. The output voltages can be externally set through a resistor feedback network. Table 1. Related Devices Model ADP5023 ADP5024 ADP5034 Channels 2 Bucks, 1 LDO 2 Bucks, 1 LDO 2 Bucks, 2 LDOs ADP5037 ADP5033 ADP5040 ADP5041 ADP5133 ADP5134 2 Bucks, 2 LDOs 2 Bucks, 2 LDOs with 2 ENx pins 1 Buck, 2 LDOs 1 Buck, 2 LDOs with supervisory, watchdog, manual reset 2 Bucks with 2 ENx pins 2 Bucks, 2 LDOs with precision enable and power-good output Maximum Current 800 mA, 300 mA 1.2 A, 300 mA 1.2 A, 300 mA 800 mA, 300 mA 800 mA, 300 mA 1.2 A, 300 mA 1.2 A, 300 mA 800 mA 1.2 A, 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) LFCSP (CP-20-10) LFCSP (CP-20-10) WLCSP (CB-16-8) LFCSP (CP-24-7) 2.3V TO 5.5V TYPICAL APPLICATION CIRCUIT ADP5133 C1 4.7µF VIN1 BUCK1 VOUT1 SW1 FB1 L1 1µH R1 ON OFF EN1 PGND1 R2 VOUT1 @ 800mA C3 10µF C2 4.7µF ON OFF VIN2 EN2 BUCK2 MODE FPWM AUTO VOUT2 SW2 L2 1µH FB2 R3 PGND2 R4 VOUT2 @ 800mA C4 10µF AGND Figure 1. Rev. 0 Document Feedback Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibilityisassumedbyAnalogDevices for itsuse,nor foranyinfringementsofpatentsor other rights of third parties that may result from its use. Specifications subject to change without notice. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners. One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781.329.4700 ©2014 Analog Devices, Inc. All rights reserved. Technical Support www.analog.com 1 page ADP5133 Data Sheet BUCK1 AND BUCK2 SPECIFICATIONS VIN1 = VIN2 = 2.3 V to 5.5 V; TJ = −40°C to +125°C for minimum/maximum specifications, and TA = 25°C for typical specifications, unless otherwise noted. All limits at temperature extremes are guaranteed via correlation using standard statistical quality control (SQC). Table 3. Parameter INPUT CHARACTERISTICS Input Voltage Range OUTPUT CHARACTERISTICS Output Voltage Accuracy Line Regulation Load Regulation VOLTAGE FEEDBACK PSM CURRENT THRESHOLD PSM to PWM Operation OPERATING SUPPLY CURRENT BUCK1 Only BUCK2 Only BUCK1 and BUCK2 Symbol VIN1, VIN2 ∆VOUT1/VOUT1, ∆VOUT2/VOUT2 (∆VOUT1/VOUT1)/∆VIN1, (∆VOUT2/VOUT2)/∆VIN2 (∆VOUT1/VOUT1)/∆IOUT1, (∆VOUT2/VOUT2)/∆IOUT2 VFB1, VFB2 IPSM IIN Test Conditions/Comments PWM mode, ILOAD1 = ILOAD2 = 0 mA to 800 mA PWM mode; ILOAD1 = ILOAD2 = 0 mA PWM mode ILOAD = 0 mA to 800 mA, PWM mode MODE = ground ILOAD1 = 0 mA, device not switching, all other channels disabled ILOAD2 = 0 mA, device not switching, all other channels disabled ILOAD1 = ILOAD2 = 0 mA, device not switching Min Typ Max Unit 2.3 5.5 V −1.8 +1.8 % −0.05 %/V −0.1 %/A 0.491 0.5 0.509 V 100 mA 44 µA 75 µA 87 µA SWx CHARACTERISTICS SWx On Resistance Current Limit ACTIVE PULL-DOWN OSCILLATOR FREQUENCY RPFET RNFET ILIMIT1, ILIMIT2 RPDWN-B fSW PFET at VIN1 = 5 V PFET at VIN1 = 3.6 V NFET at VIN1 = 5 V NFET at VIN1 = 3.6 V PFET switch peak current limit VIN1 = VIN2 = 3.6 V, channels disabled 1100 2.5 145 180 110 125 1350 75 3.0 235 295 190 220 3.5 mΩ mΩ mΩ mΩ mA Ω MHz INPUT AND OUTPUT CAPACITOR, RECOMMENDED SPECIFICATIONS TA = −40°C to +125°C, unless otherwise specified. Table 4. Parameter NOMINAL INPUT AND OUTPUT CAPACITOR RATINGS BUCK1, BUCK2 Input Capacitor Rating BUCK1, BUCK2 Output Capacitor Rating CAPACITOR ESR Symbol CMIN1, CMIN2 CMIN1, CMIN2 CESR Min 4.7 10 0.001 Typ Max Unit 40 µF 40 µF 1Ω Rev. 0 \| Page 4 of 24 5 Page ADP5133 T VOUT 1 ISW 2 SW 4 CH1 50mV CH2 500mA CH4 2.00V M 400ns A CH2 T 28.40% 220mA Figure 21. Typical Waveforms, VOUT1 = 3.3 V, IOUT1 = 30 mA, PWM Mode T VOUT 1 ISW 2 SW 4 CH1 50mV CH2 500mA CH4 2.00V M 400ns A CH2 T 28.40% 220mA Figure 22. Typical Waveforms, VOUT2 = 1.8 V, IOUT2 = 30 mA, PWM Mode T VIN VOUT 1 SW 3 CH1 50.0mV CH3 1.00V CH4 2.00V M 1.00ms T 30.40% A CH3 4.80V Figure 23. Buck1 Response to Line Transient, Input Voltage from 4.5 V to 5.0 V, VOUT1 = 3.3 V, PWM Mode T VIN VOUT 1 SW Data Sheet 43 CH1 50.0mV CH3 1.00V CH4 2.00V M 1.00ms T 30.40% A CH3 4.80V Figure 24. BUCK2 Response to Line Transient, VIN = 4.5 V to 5.0 V, VOUT2 = 1.8 V, PWM Mode T SW 4 VOUT 1 IOUT 2 CH1 50.0mV CH2 50.0mA CH4 5.00V M 20.0µs A CH2 356mA T 60.000µs Figure 25. BUCK1 Response to Load Transient, IOUT1 from 1 mA to 50 mA, VOUT1 = 3.3 V, Auto PWM/PSM Mode T SW 4 VOUT 1 IOUT 2 CH1 50.0mV CH2 50.0mA CH4 5.00V M 20.0µs A CH2 T 22.20% 379mA Figure 26. BUCK2 Response to Load Transient, IOUT2 from 1 mA to 50 mA, VOUT2 = 1.8 V, Auto PWM/PSM Mode Rev. 0 \| Page 10 of 24 11 Page

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