ISL9021AIINZ-EVZ_技术文档

250mA Single LDO with Low I , Low Noise and High

Q

PSRR LDO

ISL9021A

Features

The ISL9021A is a single LDO, which provides high

performance, low input voltage and 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.

• High performance LDO with 250mA guaranteed continuous

output current

• Input voltage range: 1.5V to 5.5V

• Output voltage range: 1.2V to 3.3V

• High PSRR: 75dB @ 10kHz, 50dB @ 1MHz

• Low quiescent current: 35µA

The input voltage range for the ISL9021A 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. The ISL9021A has typical PSRR of 75dB @ 10kHz and

50dB @ 1MHz.

• Dropout voltage: <150mV @ 250mA

• Stable with 1µF to 4.7µF output capacitance (±30%) with an

ESR range of 5mΩ to 400mΩ

The reverse current protection feature prevents current from

flowing back to the power source when the output voltage is

pulled higher than the input.

• ±1.8% output accuracy over-temperature/load/line

• Soft-start limits input current surge during enable

• Current limit and overheat protection

The ISL9021A is offered in tiny 4-bump 0.975mmx1.155mm

WLCSP and 1.6mmx1.6mm 6 Ld µTDFN packages.

• -40°C to +85°C operating temperature range

• Available in 0.975mmx1.155mm 4-bump WLCSP package

and 1.6mmx1.6mm 6 Ld µTDFN

Related Literature

• See FN6867, ISL9021 “250mA Single LDO with Low IQ, Low

Noise and High PSRR LDO”

• Pb-free (RoHS compliant)

Applications

• PDAs, cell phones and smart phones

• Portable instruments, MP3 players

• Handheld devices including medical handheld

ISL9021A

VO

VIN (1.5V TO 5.5V)

VOUT

VIN

ON

ENABLE

GND

EN

OFF

C1

C2

C1, C2: 1µF X5R CERAMIC CAPACITOR

FIGURE 1. TYPICAL APPLICATION

December 20, 2012

FN7845.3

CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.

Intersil (and design) is a trademark owned by Intersil Corporation or one of its subsidiaries.

All other trademarks mentioned are the property of their respective owners.

1

ISL9021A

Block Diagram

PASS ELEMENT

VIN

EN

VOUT

SHORT-CIRCUIT

TEMP

SENSOR

CONTROL

LOGIC

PROTECTION

THERMAL PROTECTION

SOFT-START

VOLTAGE

AND

REFERENCE

GENERATOR

+

BANDGAP

GND

Pin Configurations

Pin Descriptions

PIN µTDFN WLCSP

ISL9021A

(6 LD 1.6x1.6 µTDFN)

TOP VIEW

NAME PIN #

PIN #

DESCRIPTION

VIN

1

B1

IC Supply/LDO Input. Connect a 1µF

capacitor to GND.

6

5

4

VIN

NC

EN

1

2

3

VO

NC

GND

EN

2, 5

4

-

No Connect.

NC

A2

A1

System ground pin.

GND

3

LDO Enable. When this signal goes high,

the LDO is turned on.

ISL9021A

(4 BALL 0.975x1.155 WLCSP)

TOP VIEW

VO,

VOUT

6

-

B2

-

LDO Output. Connect a 1µF to 4.7µF

capacitor to GND.

PAD

For µTDFN package option only. Connect it

to the system ground.

GND

EN

VOUT

VIN

A2

A1

B2

B1

FN7845.3

December 20, 2012

2

ISL9021A

Ordering Information

PACKAGE

Tape & Reel

(Pb-free)

PART NUMBER

(Notes 1, 4)

PART

MARKING

V

VOLTAGE

(V)

TEMP RANGE

PKG.

DWG. #

O

(°C)

ISL9021AIINZ-T (Note 2)

ISL9021AIIUZ-T (Note 2)

ISL9021AIIMZ-T (Note 2)

ISL9021AIIKZ-T (Note 2)

ISL9021AIIFZ-T (Note 2)

ISL9021AIICZ-T (Note 2)

ISL9021AIIBZ-T (Note 2)

ISL9021AIIWZ-T (Note 2)

ISL9021AIRUNZ-T (Note 3)

ISL9021AIRUNZ-T7A (Note 3)

ISL9021AIRUMZ-T (Note 3)

ISL9021AIRUMZ-T7A (Note 3)

ISL9021AIRUKZ-T (Note 3)

ISL9021AIRUKZ-T7A (Note 3)

ISL9021AIRUJZ-T (Note 3)

ISL9021AIRUJZ-T7A (Note 3)

ISL9021AIRUFZ-T (Note 3)

ISL9021AIRUFZ-T7A (Note 3)

ISL9021AIRUCZ-T (Note 3)

ISL9021AIRUCZ-T7A (Note 3)

ISL9021AIRUBZ-T (Note 3)

ISL9021AIRUBZ-T7A (Note 3)

ISL9021AIRUWZ-T (Note 3)

ISL9021AIRUWZ-T7A (Note 3)

ISL9021AIRUYZ-T (Note 3)

ISL9021AIRUYZ-T7A (Note 3)

ISL9021AIINZ-EVZ

21AN

21AU

3.3

3.1

3.0

2.85

2.5

1.8

1.5

1.2

3.3

3.0

2.85

2.8

2.5

1.8

1.5

1.2

0.9

-40°C to +85°C

4 Ball 0.975x1.155 WLCSP

6 Ld µTDFN

W2x2.4

21AM

21AK

21AF

21AC

21AB

21AW

V6

W2x2.4

L6.1.6x1.6

V6

6 Ld µTDFN

V5

6 Ld µTDFN

V5

6 Ld µTDFN

V4

6 Ld µTDFN

V4

6 Ld µTDFN

V3

6 Ld µTDFN

V3

6 Ld µTDFN

V2

6 Ld µTDFN

V2

6 Ld µTDFN

V1

6 Ld µTDFN

V1

6 Ld µTDFN

V0

6 Ld µTDFN

V0

6 Ld µTDFN

V7

6 Ld µTDFN

V7

6 Ld µTDFN

V8

6 Ld µTDFN

V8

6 Ld µTDFN

Evaluation Board for ISL9021AIINZ

Evaluation Board for ISL9021AIIUZ

Evaluation Board for ISL9021AIIMZ

Evaluation Board for ISL9021AIIKZ

Evaluation Board for ISL9021AIIFZ

Evaluation Board for ISL9021AIICZ

Evaluation Board for ISL9021AIIBZ

Evaluation Board for ISL9021AIIWZ

ISL9021AIIUZ-EVZ

ISL9021AIIMZ-EVZ

ISL9021AIIKZ-EVZ

ISL9021AIIFZ-EVZ

ISL9021AIICZ-EVZ

ISL9021AIIBZ-EVZ

ISL9021AIIWZ-EVZ

ISL9021AIRUNZ-EVZ

Evaluation Board for ISL9021AIRUNZ

Evaluation Board for ISL9021AIRUMZ

Evaluation Board for ISL9021AIRUKZ

Evaluation Board for ISL9021AIRUJZ

ISL9021AIRUMZ-EVZ

ISL9021AIRUKZ-EVZ

ISL9021AIRUJZ-EVZ

FN7845.3

December 20, 2012

3

ISL9021A

Ordering Information(Continued)

PACKAGE

Tape & Reel

(Pb-free)

PART NUMBER

(Notes 1, 4)

PART

MARKING

V

VOLTAGE

(V)

TEMP RANGE

(°C)

PKG.

DWG. #

O

ISL9021AIRUFZ-EVZ

Evaluation Board for ISL9021AIRUFZ

Evaluation Board for ISL9021AIRUCZ

Evaluation Board for ISL9021AIRUBZ

Evaluation Board for ISL9021AIRUWZ

Evaluation Board for ISL9021AIRUYZ

ISL9021AIRUCZ-EVZ

ISL9021AIRUBZ-EVZ

ISL9021AIRUWZ-EVZ

ISL9021AIRUYZ-EVZ

NOTES:

1. Please refer to TB347 for details on reel specifications.

2. 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.

3. 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.

4. For Moisture Sensitivity Level (MSL), please see device information page for ISL9021A. For more information on MSL please see techbrief TB363.

FN7845.3

December 20, 2012

4

ISL9021A

Absolute Maximum Ratings

Thermal Information

Supply Voltage (VIN). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +6.5V

All Other Pins . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3 to (VIN + 0.3)V

Thermal Resistance (Typical)

4 Ball WLCSP (Note 5) . . . . . . . . . . . . . . . . .

6 Lead µTDFN (Notes 6, 7) . . . . . . . . . . . . .

θ

(°C/W)

135.64

230

θ

(°C/W)

N/A

93

JA

JC

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

Recommended Operating Conditions

Ambient Temperature Range (T ) . . . . . . . . . . . . . . . . . . . .-40°C to +85°C

A

Supply Voltage (V ) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.5 to 5.5V

IN

ESD Rating

Human Body Model. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5000V

Machine Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 250V

Charged Device Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2200V

Latch-Up Passed at +85°C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100mA

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.

NOTES:

5. θ is measured in free air with the component mounted on a high effective thermal conductivity test board with “direct attach” features. See Tech

JA

Brief TB379.

6. θ is measured with the component mounted on a high effective thermal conductivity test board in free air. See Tech Brief TB379 for details.

JA

7. For θ , the “case temp” location is taken at the package top center.

JC

Electrical Specifications T = -40°C to +85°C; V = (V + 0.5V) to 5.5V with a minimum V of 1.5V; C = 1µF; C = 1µF. Boldface

A

IN

O

IN

O

limits apply over the operating temperature range, -40°C to +85°C.

MIN

(Note 10)

MAX

(Note 10) UNIT

PARAMETER

DC CHARACTERISTICS

Supply Voltage

SYMBOL

TEST CONDITIONS

TYP

V

1.5

5.5

1.5

V

IN

V

Undervoltage Lockout

V

Rising

Falling

1.425

1.375

35

IN

UVLO+

IN

Threshold

V

1.3

V

UVLO-

Ground Current

I

Output Enabled; I = 0; V = 1.5V to 5.5V

IN

50

µA

%

DD

O

Shutdown Current

Output Voltage Accuracy

I

V

= 5.5V, EN = Low, I = 0

0.1

1.0

DDS

IN

O

= V + 0.5V to 5.5V, I = 1mA to 250mA, T = +25°C

-0.8

-1.8

250

260

+0.8

+1.8

O

J

= V + 0.5V to 5.5V, I = 1mA to 250mA, T = -40°C to +125°C

%

O

J

Maximum Output Current

Internal Current Limit

I

Continuous

mA

mV

°C

MAX

I

LIM

Dropout Voltage (Notes 8, 9)

Thermal Shutdown Temperature

Thermal Shutdown Hysteresis

AC CHARACTERISTICS

V

I

= 250mA; V > 1.8V

150

160

20

250

DO

SD

O

T

Ripple Rejection (Note 8)

V

= 4.5V, V = 3.3V @ 1kHz

60

75

50

dB

IN

O

= 4.5V, V = 3.3V @ 10kHz

O

= 4.5V, V = 3.3V @ 1MHz

O

Output Noise Voltage (Note 8)

= 4.2V, T = +25°C, BW = 10Hz to 100kHz, I = 10mA

8.5*V

µV

RMS

A

O

DEVICE START-UP CHARACTERISTICS

Device Enable Time

t

Time from assertion of the EN pin to when the output voltage

250

30

600

60

µs

EN

reaches 95% of the V (nom)

O

LDO Soft-start Ramp Rate

t

Slope of linear portion of LDO output voltage ramp during start-up

µs/V

SSR

FN7845.3

December 20, 2012

5

ISL9021A

Electrical Specifications T = -40°C to +85°C; V = (V + 0.5V) to 5.5V with a minimum V of 1.5V; C = 1µF; C = 1µF. Boldface

A

IN

O

IN

O

limits apply over the operating temperature range, -40°C to +85°C. (Continued)

MIN

(Note 10)

MAX

(Note 10) UNIT

PARAMETER

EN LOGIC CHARACTERISTICS

Input Low Voltage

SYMBOL

TEST CONDITIONS

TYP

V

0.4

0.1

V

IL

Input High Voltage

Input Leakage Current

NOTES:

V

1.1

IH

I

µA

IL, IH

8. Limits established by characterization and are not production tested.

9. Dropout voltage is measured as V - V , when V is 4% lower than the value of V

O

IN

O

10. 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.

Typical Operating Performance

45

40

35

30

25

20

15

10

5

45

40

35

30

25

20

15

10

5

T = +85°C

T = +45°C

T = +85°C

T = ROOM TEMP

T = +45°C

T = 0°C

T = -25°C

T = -40°C

0

1.5

2.5

3.5

4.5

5.5

1.5

2.5

3.5

4.5

5.5

INPUT VOLTAGE (V)

FIGURE 3. QUIESCENT CURRENT vs INPUT VOLTAGE

FIGURE 2. QUIESCENT CURRENT vs INPUT VOLTAGE

(V = 0.9V)

(V

= 1.85V)

OUT

1.95

1.90

1.85

1.80

1.75

1.70

1.65

1.60

50

40

30

20

10

0

T = ROOM TEMP

T = +45°C

T = +85°C

+25°C

-40°C

+85°C

T = 0°C

T = -25°C

T = -40°C

-10

3.5

4.0

4.5

5.0

5.5

6.0

0

50

100

150

200

250

300

INPUT VOLTAGE (V)

Io (mA)

FIGURE 5. LOAD REGULATION vs TEMPERATURE

(V = 1.85V)

FIGURE 4. QUIESCENT CURRENT vs INPUT VOLTAGE

(V = 3.3V)

OUT

FN7845.3

December 20, 2012

6

ISL9021A

Typical Operating Performance(Continued)

2.00

3.5

3.4

3.3

3.2

3.1

3.0

2.9

2.8

1.95

+25°C

1.90

+85°C

1.85

1.80

+85°C

-40°C

1.75

1.70

1.65

1.60

1.55

1.50

-40°C

0

50

100

150

Io (mA)

200

250

300

2.5

3.5

4.5

(V)

5.5

6.5

V

IN

FIGURE 7. LOAD REGULATION vs TEMPERATURE (V

= 3.3V)

FIGURE 6. LINE REGULATION vs TEMPERATURE (V

= 1.85V)

OUT

3.50

3.45

1.05

1.00

3.40

+25°C

0.95

+85°C

+25°C

3.35

3.30

3.25

3.20

3.15

3.10

3.05

3.00

+85°C

0.90

0.85

-40°C

0.80

-40°C

0.75

0.70

0.65

0.60

3.5

4.0

4.5

5.0

5.5

6.0

0

50

100

150

200

250

300

V

(V)

Io (mA)

IN

FIGURE 9. LOAD REGULATION vs TEMPERATURE (V

= 0.9V)

FIGURE 8. LINE REGULATION vs TEMPERATURE (V

= 3.3V)

OUT

V

= 2.7V

IN

1.00

C

= 1µF

OUT

V

= 1.85V

OUT

V

OUT

0.95

+25°C

+85°C

0.90

0.85

0.80

0.75

0.70

-40°C

I

OUT

I

= 1mA TO 250mA

OUT

3.0

3.5

4.0

4.5

(V)

5.0

5.5

6.0

V

IN

FIGURE 11. LOAD TRANSIENT RESPONSE

FIGURE 10. LINE REGULATION vs TEMPERATURE (V

= 0.9V)

OUT

FN7845.3

December 20, 2012

7

ISL9021A

Typical Operating Performance(Continued)

V

= 2.7V

IN

C

= 4.7µF

OUT

V

= 1.85V

OUT

V

OUT

I

OUT

I

= 1mA TO 250mA

OUT

FIGURE 12. LOAD TRANSIENT RESPONSE

FIGURE 13. ENABLE FUNCTION (V = 3.6V, V

IN

= 1.85V,

OUT

C

1µF)

OUT

-20

V

= 4.5VDC + 50mVAC

IN

-30

-40

-50

-60

-70

-80

-90

C

= 1µF

OUT

I

= 10mA

O

I

= 0A

1k

O

100

10k

100k

1M

FREQUENCY (Hz)

FIGURE 14. POWER SUPPLY REJECTION vs FREQUENCY

FN7845.3

December 20, 2012

8

ISL9021A

The ISL9021A’s reverse current protection is intended to block

reverse conduction if output voltage is higher than input voltage.

Functional Description

The ISL9021A 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, and soft-start features.

Input and Output Capacitors

The ISL9021A provides a linear regulator that has low quiescent

current, fast transient response, and overall stable operation

across the recommended operating conditions. A ceramic

capacitor (X5R or X7R) with a capacitance of 1µF to 4.7µF with

an ESR up to 400mΩ is suitable for the ISL9021A to maintain its

output stability. The ground connection of the output capacitor

should be routed directly to the GND pin of the device, and also

placed close to the IC. Similarly for the input capacitor, usually a

1µF ceramic capacitor (X5R or 7R) is suitable for most cases, but

if a large, fast rising load transient condition is expected, a higher

value input capacitor may be necessary to achieve satisfactory

performance.

Thermal shutdown protects the device against overheating.

Soft-start limits the start-up input current surges. In some

applications, the output voltage may be externally pulled higher

than the input, or the input voltage could be connected to ground,

or connected to some voltage lower than the output side. The

ISL9021A features reverse current protection; that can block the

reverse current from output to input.

Enable Control

The ISL9021A has an enable pin. When EN is low, the IC is in

shutdown mode. In this condition, all on-chip circuits are off, and

the device draws minimum current, typically less than

0.1µA(typ). Driving this pin high will turn on the device.

Board Layout Recommendations

A good PCB layout is an important step to achieve good

performance. It is recommended to design the board with

separate ground planes for input and output, and connect both

ground planes at the GND pin of the IC. Consideration should be

taken when placing the components and routing the trace to

minimize the ground impedance, and keep the parasitic

inductance low. Usually the input/output capacitors should be

placed as close to the IC as possible with a good ground

connection.

LDO Protections

The ISL9021A offers several protection functions, making it ideal for

use in battery-powered applications. The ISL9021A provides

short-circuit protection by limiting the output current at current limit

of 260mA (min). If the short circuit lasts long enough, the die

temperature increases, and the over-temperature protection circuit

will shut down the output. When the die temperature reaches about

+145°C, thermal protection starts to work with output being loaded

with at least 50mA. Once the die temperature drops to about

+110°C, the LDO will resume operation beginning with a soft-start.

FN7845.3

December 20, 2012

9

ISL9021A

Revision History

The revision history provided is for informational purposes only and is believed to be accurate, but not warranted. Please go to web to make

sure you have the latest revision.

DATE

REVISION

FN7845.3

FN7845.2

FN7845.1

CHANGE

December 17, 2012

December 2, 2011

October 7, 2011

Added evaluation boards and ISL9021AIIUZ-T to “Ordering Information” on page 3.

Changed CSP package dimension from “2mmx2mm” to “0.975mmx1.155mm” on page 1 to page 3.

Updated “Ordering Information” on page 3 by adding ISL9021AIRUYZ-T and ISL9021AIRUYZ-T7A parts. Made

corrections to part markings and added -T7A parts.

May 27, 2011

FN7845.0

Initial Release

About Intersil

Intersil Corporation is a leader in the design and manufacture of high-performance analog, mixed-signal and power management

semiconductors. The company's products address some of the fastest growing markets within the industrial and infrastructure,

personal computing and high-end consumer markets. For more information about Intersil or to find out how to become a member of

our winning team, visit our website and career page at www.intersil.com.

For a complete listing of Applications, Related Documentation and Related Parts, please see the respective product information page.

Also, please check the product information page to ensure that you have the most updated datasheet: ISL9021A

To report errors or suggestions for this datasheet, please go to: www.intersil.com/askourstaff

Reliability reports are available from our website at: http://rel.intersil.com/reports/search.php

For additional products, see www.intersil.com/product_tree

Intersil products are manufactured, assembled and tested utilizing ISO9000 quality systems as noted

in the quality certifications found at www.intersil.com/design/quality

Intersil products are sold by description only. Intersil Corporation reserves the right to make changes in circuit design, software and/or specifications at any time

without notice. 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. No license is granted by implication or otherwise under any patent or patent rights of Intersil or its subsidiaries.

For information regarding Intersil Corporation and its products, see www.intersil.com

FN7845.3

December 20, 2012

10

ISL9021A

Package Outline Drawing

L6.1.6x1.6

6 LEAD ULTRA THIN DUAL FLAT NO-LEAD COL PLASTIC PACKAGE (UTDFN COL)

Rev 1, 11/07

2X 1.00

1.60

A

PIN #1 INDEX AREA

6

4X 0.50

PIN 1

INDEX AREA

B

1

3

5X 0 . 40 ± 0 . 1

1X 0.5 ±0.1

1.60

(4X)

0.15

4

6

0.10 M C A B

TOP VIEW

4

0.25 +0.05 / -0.07

BOTTOM VIEW

( 6X 0 . 25 )

SEE DETAIL "X"

( 1X 0 .70 )

0 . 55 MAX

C

0.10

BASE PLANE

SEATING PLANE

C

0.08

C

( 1 . 4 )

SIDE VIEW

0 . 2 REF

C

( 5X 0 . 60 )

0 . 00 MIN.

0 . 05 MAX.

DETAIL "X"

( 4X 0 . 5 )

TYPICAL RECOMMENDED LAND PATTERN

NOTES:

1. Dimensions are in millimeters.

Dimensions in ( ) for Reference Only.

2. Dimensioning and tolerancing conform to AMSE Y14.5m-1994.

3. Unless otherwise specified, tolerance : Decimal ± 0.05

4. Dimension b applies to the metallized terminal and is measured

between 0.15mm and 0.30mm from the terminal tip.

Tiebar shown (if present) is a non-functional feature.

5.

6.

The configuration of the pin #1 identifier is optional, but must be

located within the zone indicated. The pin #1 identifier may be

either a mold or mark feature.

FN7845.3

December 20, 2012

11

ISL9021A

Wafer Level Chip Scale Package

(WLCSP 0.4mm Ball Pitch)

W2x2.4

2x2 ARRAY 4 BALL WAFER LEVEL CHIP SCALE PACKAGE

SYMBOL

MILLIMETERS

0.44 Min, 0.495 Nom, 0.55 Max

0.190 ±0.030

D

A

A1

A2

b

0.305 ±0.025

E

0.270 ±0.030

D

1.155 ±0.020

D1

E

0.400 BASIC

PIN 1

TOP VIEW

0.975 ±0.020

E1

e

0.400 BASIC

SD

SE

0.200 BASIC

0.00 BASIC

NUMBER OF BUMPS: 4

Rev. 2 6/08

A2

NOTES:

1. All dimensions are in millimeters.

A

A1

b

SIDE VIEW

e ( D1 )

2

SE

e ( E1 )

1

B

A

b

SD

BOTTOM VIEW

FN7845.3

December 20, 2012

12


型号：	ISL9021AIINZ-EVZ
厂家：	Intersil
描述：	250mA Single LDO with Low IQ, Low Noise and High PSRR LDO
文件：	总12页 (文件大小：325K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

ISL9021AIINZ-EVZ [INTERSIL]

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