ISL9021 Datasheet January 14, 2010 FN6867.2 250mA Single LDO with Low I , Low Features Q Noise and High PSRR LDO High Performance LDO with 250mA guaranteed continuous output current The ISL9021 is a single LDO providing high performance low input voltage, high PSRR. It delivers guaranteed Input Voltage Range: 1.5V to 5.5V continuous 250mA load current and is stable with 1F to Output Voltage Range: 0.9V to 3.3V 4.7F of output capacitance (30%) with an ESR range of 5m to 400m. High PSRR: 75dB 10kHz, 50dB 1MHz The input voltage range for the ISL9021 is between 1.5V to Low Quiescent Current: 35A 5.5V and the output voltage comes in many fixed voltage Dropout Voltage: <150mV 250mA options with 1.8% accuracy over temperature, line and load Stable with 1F to 4.7F Output Capacitance (30%) with ranges. Other output voltage within the range of 0.9V to 3.3V an ESR range of 5m to 400m may be available upon request. The ISL9021 has typical PSRR of 75dB 10kHz and 50dB 1MHz. 1.8% Output Accuracy Over-Temperature/Load/Line The reverse current protection feature prevents current from Soft-start Limits Input Current Surge During Enable flowing back to the power source when the output voltage is Current Limit and Overheat Protection pulled higher than the input. -40C to +85C Operating Temperature Range The ISL9021 is offered in tiny 4-bump 1.155mmx0.975mm Available in 1.155mmx0.975mm 4-bump WLCSP WLCSP and 1.6mmx1.6mm 6 Ld TDFN packages. Package and 1.6mmx1.6mm 6 Ld TDFN Pinouts Pb-free (RoHS compliant) ISL9021 (6 LD 1.6x1.6 TDFN) Applications TOP VIEW PDAs, Cell Phones and Smart Phones Portable Instruments, MP3 Players VIN 6 1 VO Handheld Devices including Medical Handhelds NC 5 2 NC EN 3 4 GND ISL9021 (4 BALL 1.155x0.975 WLCSP) TOP VIEW GND VOUT A2 B2 EN A1 B1 VIN CAUTION: These devices are sensitive to electrostatic discharge follow proper IC Handling Procedures. 1 1-888-INTERSIL or 1-888-468-3774 Intersil (and design) is a registered trademark of Intersil Americas Inc. Copyright Intersil Americas Inc. 2009, 2010. All Rights Reserved All other trademarks mentioned are the property of their respective owners. NOT RECOMMENDED FOR NEW DESIGNS RECOMMENDED REPLACEMENT PART ISL9021AISL9021 Ordering Information PACKAGE PART NUMBER PART V Voltage TEMP RANGE Tape & Reel PACKAGE O MARKING (Note 2) (C) (Pb-free) DWG. ISL9021II1Z-T (Notes 1, 3) 0211 1.1 -40 to +85 4 Ball WLCSP W2x2.4 ISL9021II2Z-T (Notes 1, 3) 0212 2.1 -40 to +85 4 Ball WLCSP W2x2.4 ISL9021II3Z-T (Notes 1, 3) 0213 1.3 -40 to +85 4 Ball WLCSP W2x2.4 ISL9021II4Z-T (Notes 1, 3) 0214 1.0 -40 to +85 4 Ball WLCSP W2x2.4 ISL9021IIBZ-T (Notes 1, 3) 021B 1.5 -40 to +85 4 Ball WLCSP W2x2.4 ISL9021IICZ-T (Notes 1, 3) 021C 1.8 -40 to +85 4 Ball WLCSP W2x2.4 ISL9021IIFZ-T (Notes 1, 3) 021F 2.5 -40 to +85 4 Ball WLCSP W2x2.4 ISL9021IIGZ-T (Notes 1, 3) 021G 2.7 -40 to +85 4 Ball WLCSP W2x2.4 ISL9021IIJZ-T (Notes 1, 3) 021J 2.8 -40 to +85 4 Ball WLCSP W2x2.4 ISL9021IIKZ-T (Notes 1, 3) 021K 2.85 -40 to +85 4 Ball WLCSP W2x2.4 ISL9021IIMZ-T (Notes 1, 3) 021M 3.0 -40 to +85 4 Ball WLCSP W2x2.4 ISL9021IINZ-T (Notes 1, 3) 021N 3.3 -40 to +85 4 Ball WLCSP W2x2.4 ISL9021IIPZ-T (Notes 1, 3) 021P 1.85 -40 to +85 4 Ball WLCSP W2x2.4 ISL9021IIRZ-T (Notes 1, 3) 021R 2.6 -40 to +85 4 Ball WLCSP W2x2.4 ISL9021IISZ-T (Notes 1, 3) 021S 1.6 -40 to +85 4 Ball WLCSP W2x2.4 ISL9021IITZ-T (Notes 1, 3) 021T 1.9 -40 to +85 4 Ball WLCSP W2x2.4 ISL9021IIWZ-T (Notes 1, 3) 021W 1.2 -40 to +85 4 Ball WLCSP W2x2.4 ISL9021IIYZ-T (Notes 1, 3) 021Y 0.9 -40 to +85 4 Ball WLCSP W2x2.4 ISL9021IRU1Z-T (Notes 1, 4) S1 1.1 -40 to +85 6 Ld TDFN L6.1.6x1.6 ISL9021IRU2Z-T (Notes 1, 4) S9 2.1 -40 to +85 6 Ld TDFN L6.1.6x1.6 ISL9021IRU3Z-T (Notes 1, 4) S3 1.3 -40 to +85 6 Ld TDFN L6.1.6x1.6 ISL9021IRU4Z-T (Notes 1, 4) S0 1.0 -40 to +85 6 Ld TDFN L6.1.6x1.6 ISL9021IRUBZ-T (Notes 1, 4) S4 1.5 -40 to +85 6 Ld TDFN L6.1.6x1.6 ISL9021IRUCZ-T (Notes 1, 4) S6 1.8 -40 to +85 6 Ld TDFN L6.1.6x1.6 ISL9021IRUFZ-T (Notes 1, 4) T0 2.5 -40 to +85 6 Ld TDFN L6.1.6x1.6 ISL9021IRUGZ-T (Notes 1, 4) T2 2.7 -40 to +85 6 Ld TDFN L6.1.6x1.6 ISL9021IRUJZ-T (Notes 1, 4) T3 2.8 -40 to +85 6 Ld TDFN L6.1.6x1.6 ISL9021IRUKZ-T (Notes 1, 4) T4 2.85 -40 to +85 6 Ld TDFN L6.1.6x1.6 ISL9021IRUMZ-T (Notes 1, 4) T5 3.0 -40 to +85 6 Ld TDFN L6.1.6x1.6 ISL9021IRUNZ-T (Notes 1, 4) R8 3.3 -40 to +85 6 Ld TDFN L6.1.6x1.6 ISL9021IRUPZ-T (Notes 1, 4) S7 1.85 -40 to +85 6 Ld TDFN L6.1.6x1.6 ISL9021IRURZ-T (Notes 1, 4) T1 2.6 -40 to +85 6 Ld TDFN L6.1.6x1.6 ISL9021IRUSZ-T (Notes 1, 4) S5 1.6 -40 to +85 6 Ld TDFN L6.1.6x1.6 ISL9021IRUTZ-T (Notes 1, 4) S8 1.9 -40 to +85 6 Ld TDFN L6.1.6x1.6 ISL9021IRUWZ-T (Notes 1, 4) S2 1.2 -40 to +85 6 Ld TDFN L6.1.6x1.6 ISL9021IRUYZ-T (Notes 1, 4) R9 0.9 -40 to +85 6 Ld TDFN L6.1.6x1.6 NOTES: 1. Please refer to TB347 for details on reel specifications. 2. For other output voltages, contact Intersil Marketing. 3. These Intersil Pb-free WLCSP and BGA packaged products employ special Pb-free material sets molding compounds/die attach materials and SnAgCu - e1 solder ball terminals, which are RoHS compliant and compatible with both SnPb and Pb-free soldering operations. Intersil Pb-free WLCSP and BGA packaged products are MSL classified at Pb-free peak reflow temperatures that meet or exceed the Pb-free requirements of IPC/JEDEC J STD-020. 4. These Intersil Pb-free plastic packaged products employ special Pb-free material sets molding compounds/die attach materials and NiPdAu plate - e4 termination finish, which is RoHS compliant and compatible with both SnPb and Pb-free soldering operations. Intersil Pb-free products are MSL classified at Pb-free peak reflow temperatures that meet or exceed the Pb-free requirements of IPC/JEDEC J STD-020. FN6867.2 2 January 14, 2010