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ISL9021IRUYZ-T

P1-P3P4-P6P7-P9P10-P10
1
FN6867.2
ISL9021
250mA Single LDO with Low I
Q
, Low
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
ISL9021
(6 LD 1.6x1.6 µTDFN)
TOP VIEW
ISL9021
(4 BALL 1.155x0.975 WLCSP)
TOP VIEW
Features
• High Performance LDO with 250mA guaranteed
continuous output current
• 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
an ESR range of 5mΩ to 400mΩ
• ±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
Package and 1.6mmx1.6mm 6 Ld µTDFN
• Pb-free (RoHS compliant)
Applications
• PDAs, Cell Phones and Smart Phones
• Portable Instruments, MP3 Players
• Handheld Devices including Medical Handhelds
1
2
3
4
5
6
VIN
GND
NC
VO
NC
EN
VIN
EN
GND
VOUT
A1 B1
A2
B2
Datasheet January 14, 2010
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
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.
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FN6867.2
January 14, 2010
Ordering Information
PART NUMBER PART
MARKING
V
O
Voltage
(Note 2)
TEMP RANGE
(°C)
PACKAGE
Tape & Reel
(Pb-free)
PACKAGE
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 µTDFN L6.1.6x1.6
ISL9021IRU2Z-T (Notes 1, 4) S9 2.1 -40 to +85 6 Ld µTDFN L6.1.6x1.6
ISL9021IRU3Z-T (Notes 1, 4) S3 1.3 -40 to +85 6 Ld µTDFN L6.1.6x1.6
ISL9021IRU4Z-T (Notes 1, 4) S0 1.0 -40 to +85 6 Ld µTDFN L6.1.6x1.6
ISL9021IRUBZ-T (Notes 1, 4) S4 1.5 -40 to +85 6 Ld µTDFN L6.1.6x1.6
ISL9021IRUCZ-T (Notes 1, 4) S6 1.8 -40 to +85 6 Ld µTDFN L6.1.6x1.6
ISL9021IRUFZ-T (Notes 1, 4) T0 2.5 -40 to +85 6 Ld µTDFN L6.1.6x1.6
ISL9021IRUGZ-T (Notes 1, 4) T2 2.7 -40 to +85 6 Ld µTDFN L6.1.6x1.6
ISL9021IRUJZ-T (Notes 1, 4) T3 2.8 -40 to +85 6 Ld µTDFN L6.1.6x1.6
ISL9021IRUKZ-T (Notes 1, 4) T4 2.85 -40 to +85 6 Ld µTDFN L6.1.6x1.6
ISL9021IRUMZ-T (Notes 1, 4) T5 3.0 -40 to +85 6 Ld µTDFN L6.1.6x1.6
ISL9021IRUNZ-T (Notes 1, 4) R8 3.3 -40 to +85 6 Ld µTDFN L6.1.6x1.6
ISL9021IRUPZ-T (Notes 1, 4) S7 1.85 -40 to +85 6 Ld µTDFN L6.1.6x1.6
ISL9021IRURZ-T (Notes 1, 4) T1 2.6 -40 to +85 6 Ld µTDFN L6.1.6x1.6
ISL9021IRUSZ-T (Notes 1, 4) S5 1.6 -40 to +85 6 Ld µTDFN L6.1.6x1.6
ISL9021IRUTZ-T (Notes 1, 4) S8 1.9 -40 to +85 6 Ld µTDFN L6.1.6x1.6
ISL9021IRUWZ-T (Notes 1, 4) S2 1.2 -40 to +85 6 Ld µTDFN L6.1.6x1.6
ISL9021IRUYZ-T (Notes 1, 4) R9 0.9 -40 to +85 6 Ld µTDFN 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.
ISL9021
3
FN6867.2
January 14, 2010
Absolute Maximum Ratings Thermal Information
Supply Voltage (VIN) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +6.5V
All Other Pins . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3 to (VIN + 0.3)V
Recommended Operating Conditions
Ambient Temperature Range (T
A
) . . . . . . . . . . . . . . .-40°C to +85°C
Supply Voltage (V
IN
) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.5 to 5.5V
Thermal Resistance (Typical, Note 5) θ
JA
(°C/W)
4 Ball WLCSP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135.64
6 Lead µTDFN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 140
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
CAUTION: Do not operate at or near the maximum ratings listed for extended periods of time. Exposure to such conditions may adversely impact product reliability and
result in failures not covered by warranty.
NOTE:
5. θ
JA
is measured in free air with the component mounted on a high effective thermal conductivity test board with “direct attach” features. See
Tech Brief TB379.
Electrical Specifications T
A
= -40°C to +85°C; V
IN
= (V
O
+ 0.5V) to 5.5V with a minimum V
IN
of 1.5V; C
IN
= 1µF; C
O
= 1µF; Parameters
with MIN and/or MAX limits are 100% tested at +25°C, unless otherwise specified. Temperature limits
established by characterization and are not production tested.
PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT
DC CHARACTERISTICS
Supply Voltage V
IN
1.5 5.5 V
V
IN
Undervoltage Lockout
Threshold
V
UVLO+
V
IN
Rising 1.425 1.5 V
V
UVLO-
V
IN
Falling 1.3 1.375 V
Ground Current I
DD
Output Enabled; I
O
= 0; V
IN
= 1.5V to 5.5V 35 50 µA
Shutdown Current I
DDS
V
IN
= 5.5V, EN = Low, I
O
= 0 0.1 1.0 µA
Output Voltage Accuracy V
IN
= V
O
+ 0.5V to 5.5V, I
O
= 1mA to 150mA, T
J
= +25°C -0.8 +0.8 %
V
IN
= V
O
+ 0.5V to 5.5V, I
O
= 1mA to 150mA, T
J
= -40°C to +125°C -1.8 +1.8
Maximum Output Current I
MAX
Continuous 250 mA
Internal Current Limit I
LIM
260 mA
Dropout Voltage (Notes 6, 7) V
DO
I
O
= 250mA; V
O
> 1.8V 150 250 mV
Thermal Shutdown Temperature T
SD
160 °C
Thermal Shutdown Hysteresis 20 °C
AC CHARACTERISTICS
Ripple Rejection (Note 6) V
IN
= 4.5V, V
O
= 3.3V @ 1kHz 60 dB
V
IN
= 4.5V, V
O
= 3.3V @ 10kHz 75 dB
V
IN
= 4.5V, V
O
= 3.3V @ 1MHz 50 dB
Output Noise Voltage (Note 6) V
IN
= 4.2V, T
A
= +25°C, BW = 10Hz to 100kHz, I
O
= 10mA 8.5*V
O
µV
RMS
DEVICE START-UP CHARACTERISTICS
Device Enable Time t
EN
Time from assertion of the EN pin to when the output voltage
reaches 95% of the V
O
(nom)
250 600 µs
LDO Soft-start Ramp Rate t
SSR
Slope of linear portion of LDO output voltage ramp during start-up 30 60 µs/V
EN LOGIC CHARACTERISTICS
Input Low Voltage V
IL
0.4 V
Input High Voltage V
IH
1.1 V
Input Leakage Current I
IL,
I
IH
0.1 µA
NOTES:
6. Limits established by characterization and are not production tested.
7. Dropout voltage is measured as V
IN
- V
O
, when V
O
is 4% lower than the value of V
O
; when V
IN
= V
O
+ 0.5V.
ISL9021
P1-P3P4-P6P7-P9P10-P10

ISL9021IRUYZ-T

Mfr. #:
Buy ISL9021IRUYZ-T
Manufacturer:
Renesas / Intersil
Description:
LDO Voltage Regulators LDO W/LW NOISE HI PSRR LW IQ 1 6 X 1 6
Lifecycle:
New from this manufacturer.
Delivery:
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