ISL9021IIFZ-T Intersil, ISL9021IIFZ-T Datasheet

IC REG LDO 2.5V 250MA 4-WLCSP

ISL9021IIFZ-T

Manufacturer Part Number
ISL9021IIFZ-T
Description
IC REG LDO 2.5V 250MA 4-WLCSP
Manufacturer
Intersil
Datasheet
1.ISL9021II1Z-T.pdf (10 pages)

Specifications of ISL9021IIFZ-T

Regulator Topology
Positive Fixed
Voltage - Output
2.5V
Voltage - Input
Up to 5.5V
Voltage - Dropout (typical)
0.15V @ 250mA
Number Of Regulators
1
Current - Output
250mA (Max)
Current - Limit (min)
260mA
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
4-WLCSP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
250mA Single LDO with Low I
Noise and High PSRR LDO
The ISL9021 is a single LDO providing high performance
low input voltage, high PSRR. It delivers guaranteed
continuous 250mA load current and is stable with 1µF to
4.7µF of output capacitance (±30%) with an ESR range of
5mΩ to 400mΩ.
The input voltage range for the ISL9021 is between 1.5V to
5.5V and the output voltage comes in many fixed voltage
options with ±1.8% accuracy over temperature, line and load
ranges. Other output voltage within the range of 0.9V to 3.3V
may be available upon request. The ISL9021 has typical
PSRR of 75dB @ 10kHz and 50dB @ 1MHz.
The reverse current protection feature prevents current from
flowing back to the power source when the output voltage is
pulled higher than the input.
The ISL9021 is offered in tiny 4-bump 1.155mmx0.975mm
WLCSP and 1.6mmx1.6mm 6 Ld µTDFN packages.
Pinouts
(4 BALL 1.155x0.975 WLCSP)
VIN
NC
GND
EN
(6 LD 1.6x1.6 µTDFN)
EN
3
1
2
TOP VIEW
TOP VIEW
A2
A1
ISL9021
ISL9021
®
1
B2
B1
6
5
4
Datasheet
VOUT
VIN
VO
NC
GND
Q
, Low
1-888-INTERSIL or 1-888-468-3774
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
Features
• High Performance LDO with 250mA guaranteed
• Input Voltage Range: 1.5V to 5.5V
• Output Voltage Range: 0.9V to 3.3V
• High PSRR: 75dB @ 10kHz, 50dB @ 1MHz
• Low Quiescent Current: 35µA
• Dropout Voltage: <150mV @ 250mA
• Stable with 1µF to 4.7µF Output Capacitance (±30%) with
• ±1.8% Output Accuracy Over-Temperature/Load/Line
• Soft-start Limits Input Current Surge During Enable
• Current Limit and Overheat Protection
• -40°C to +85°C Operating Temperature Range
• Available in 1.155mmx0.975mm 4-bump WLCSP
• Pb-free (RoHS compliant)
Applications
• PDAs, Cell Phones and Smart Phones
• Portable Instruments, MP3 Players
• Handheld Devices including Medical Handhelds
continuous output current
an ESR range of 5mΩ to 400mΩ
Package and 1.6mmx1.6mm 6 Ld µTDFN
January 14, 2010
All other trademarks mentioned are the property of their respective owners.
|
Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright Intersil Americas Inc. 2009, 2010. All Rights Reserved
ISL9021
FN6867.2

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ISL9021IIFZ-T Summary of contents

Page 1

... CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures. | 1-888-INTERSIL or 1-888-468-3774 All other trademarks mentioned are the property of their respective owners. ISL9021 FN6867.2 Intersil (and design registered trademark of Intersil Americas Inc. Copyright Intersil Americas Inc. 2009, 2010. All Rights Reserved ...

Page 2

... ISL9021II2Z-T (Notes 1, 3) 0212 ISL9021II3Z-T (Notes 1, 3) 0213 ISL9021II4Z-T (Notes 1, 3) 0214 ISL9021IIBZ-T (Notes 1, 3) 021B ISL9021IICZ-T (Notes 1, 3) 021C ISL9021IIFZ-T (Notes 1, 3) 021F ISL9021IIGZ-T (Notes 1, 3) 021G ISL9021IIJZ-T (Notes 1, 3) 021J ISL9021IIKZ-T (Notes 1, 3) 021K ISL9021IIMZ-T (Notes 1, 3) 021M ISL9021IINZ-T (Notes 1, 3) ...

Page 3

... Thermal Resistance (Typical, Note 5) 4 Ball WLCSP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Lead µTDFN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Junction Temperature Range . . . . . . . . . . . . . . . . .-40°C to +125°C Operating Temperature Range . . . . . . . . . . . . . . . . .-40°C to +85°C Storage Temperature Range . . . . . . . . . . . . . . . . . .-65°C to +150°C Pb-Free Reflow Profile .see link below http://www.intersil.com/pbfree/Pb-FreeReflow.asp = (V + 0.5V) to 5.5V with a minimum TEST CONDITIONS V ...

Page 4

Typical Operating Performance ROOM TEMP T = +45° -25° -40° 1.5 2.5 3.5 INPUT VOLTAGE (V) FIGURE 1. QUIESCENT CURRENT vs INPUT VOLTAGE (V ...

Page 5

Typical Operating Performance 3.50 3.45 3.40 +25°C 3.35 3.30 3.25 3.20 -40°C 3.15 3.10 3.05 3.00 3.5 4.0 4.5 V (V) IN FIGURE 7. LINE REGULATION vs TEMPERATURE (V = 3.3V) OUT 1.00 0.95 +25°C 0.90 0.85 -40°C 0.80 0.75 ...

Page 6

Typical Operating Performance FIGURE 13. POWER SUPPLY REJECTION vs FREQUENCY Pin Descriptions PIN NAME VIN IC Supply/LDO Input. Connect a 1µF capacitor to GND. GND System ground pin. EN LDO Enable. When this signal goes high, the LDO is turned ...

Page 7

Block Diagram VIN EN TEMP SENSOR 7 ISL9021 PASS ELEMENT SHORT-CIRCUIT CONTROL PROTECTION LOGIC THERMAL PROTECTION SOFT-START VOLTAGE AND + REFERENCE GENERATOR BANDGAP VOUT GND FN6867.2 January 14, 2010 ...

Page 8

Functional Description The ISL9021 is a high performance low-dropout regulator (LDO) with 250mA sourcing capability. The extra low ground current makes this part a good choice for handheld product applications. The device also incorporates overcurrent, thermal shutdown, reverse current protections, ...

Page 9

... Accordingly, the reader is cautioned to verify that data sheets are current before placing orders. Information furnished by Intersil is believed to be accurate and reliable. However, no responsibility is assumed by Intersil or its subsidiaries for its use; nor for any infringements of patents or other rights of third parties which may result from its use ...

Page 10

Package Outline Drawing L6.1.6x1.6 6 LEAD ULTRA THIN DUAL FLAT NO-LEAD COL PLASTIC PACKAGE (UTDFN COL) Rev 1, 11/07 1.60 6 PIN 1 INDEX AREA (4X) 0.15 TOP VIEW ( ...

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