Synchronous Regulator with Bypass Mode, TINYBOOST, 2.5 MHz, 1500 mA FAN48630J www.onsemi.com Description The FAN48630J allows systems to take advantage of new battery chemistries that can supply significant energy when the battery voltage is lower than the required voltage for system power ICs. By combining builtin power transistors, synchronous rectification, and low supply current this IC provides a compact solution for systems using advanced LiIon battery chemistries. WLCSP16 1.78x1.78x0.586 CASE 567SY The FAN48630J is a boost regulator designed to provide a minimum output voltage (V ) from a singlecell LiIon battery, even OUT(MIN) when the battery voltage is below system minimum. Output voltage MARKING DIAGRAM regulation is guaranteed to a maximum load current of 1500 mA. Quiescent current in Shutdown Mode is less than 3 A, which 1 2K K maximizes battery life. The regulator transitions smoothly between Pin1 Mark Bypass and normal Boost Mode. The device can be forced into Bypass XY Z Mode to reduce quiescent current. The FAN48630J is available in a 16 bump, 0.4 mm pitch, 12 = Alphanumeric Device Marking WaferLevel ChipScale Package (WLCSP). KK = Lot Rune Code X = Alphabetical Year Code Features Y= 2weeks Date Code Z = Assembly Plant Code 3 External Components: 0.47 H Inductor and 0603 Case Size Input and Output Capacitors ORDERING INFORMATION Input Voltage Range: 2.35 V to 5.5 V See detailed ordering and shipping information on page 2 of Fixed Output Voltage Option: 3.15 V/3.6 V this data sheet. Up to 96% Efficient True Bypass Operation when V > Target V IN OUT Internal Synchronous Rectifier VIN VOUT SoftStart with True Load Disconnect + C Battery IN C OUT SYSTEM 0.47 F Forced Bypass Mode LO AD 47 F 0.47 SW PGND V Control to Optimize Target V SEL OUT FAN48630 VSEL ShortCircuit Protection AGND EN Low Operating Quiescent Current PG BYP 16Bump, 0.4 mm Pitch WLCSP Applications Figure 1. Typical Application Boost for LowVoltage Liion Batteries, Brownout Prevention, Boosted Audio, USB OTG, and LTE / 3G RF Power Cell Phones, Smart Phones, Portable Instruments Semiconductor Components Industries, LLC, 2015 1 Publication Order Number: October, 2019 Rev. 2 FAN48630J/D L1FAN48630J Table 1. ORDERING INFORMATION Output Voltage Operating Device Temperature Marking Part Number V /V Package Shipping SELO SEL1 FAN48630BUC31JX 3.15 V/3.60 V 40 to 85C WLCSP Tape & Reel JH For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging Specifications Brochure, BRD8011/D. TYPICAL APPLICATION Q3B Q3A VIN C IN Q3 Bypass Control Q1B Q1A SW VOUT Q1 C OUT Q2 Synchronous Rectifier Control GND VSEL EN Modulator Logic and Control BYP PG Figure 2. Typical Application Block Diagram Table 2. RECOMMENDED COMPONENTS Component Description Vendor Parameter Typ. Unit L1 0.47 H, 30% Toko: DFE201612C L 0.47 H DFR201612C Cyntec: PIFE20161B C 4.7 F, 10%, 6.3 V, X5R, 0603 (1608) Murata: GRM188R60J475K C 4.7 F IN TDK: C1608X5R0J475K C 47 F, 20%, 6.3 V, X5R, 0603 (1608) Samsung: CL10A476MQ8CZNE C 47 OUT www.onsemi.com 2 L1