intersil ISL9003A DATA SHEET

®

www.BDTIC.com/Intersil

ISL9003A

Data Sheet March 11, 2008

Low Noise LDO with Low IQ and High
PSRR

ISL9003A is a high performance single low noise, high
PSRR LDO that delivers a continuous 150mA of load
current. It has a low standby current and is stable with 1µF of
MLCC output capacitance with an ESR of up to 200mΩ.

The ISL9003A has a very high PSRR of 90dB and output
noise is 20µV

(typical). When coupled with a no load

RMS

quiescent current of 31µA (typical), and 0.5µA shutdown
current, the ISL9003A is an ideal choice for portable wireless
equipment.

The ISL9003A comes in many fixed voltage options with
±1.8% output voltage accuracy over temperature, line and
load. Other output voltage options are available on request.

Pinouts

ISL9003A

(5 LD SC-70)

TOP VIEW

VIN

GND

EN

1

2

354

VO

CBYP

FN6299.3

Features

• High performance LDO with 150mA continuous output

• Excellent transient response to large current steps

• Excellent load regulation:
<0.1% voltage change across full range of load current

• Very high PSRR: >90dB @ 1kHz

• Wide input voltage capability: 2.3V to 6.5V

• Extremely low quiescent current: 31µA

• Low dropout voltage: typically 200mV @ 150mA

• Low output noise: typically 20µV

• Stable with 1µF to 4.7µF ceramic capacitors

• Shutdown pin turns off LDO with 1µA (max) standby
current

• Soft-start limits input current surge during enable

• Current limit and overheat protection

• ±1.8% accuracy over all operating conditions

• 5 Ld SC-70 package or 6 Ld µTDFN package

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

• Pb-free (RoHS compliant)

@ 100µA (1.5V)

RMS

ISL9003A

(6 LD 1.6x1.6 µTDFN)

TOP VIEW

VO

GND

CBYP

1
2
3

6
5

4

VIN
NC5
EN

Applications

• PDAs, cell phones and smart phones

• Portable instruments, MP3 players

• Handheld devices including medical handhelds

1

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

1-888-INTERSIL or1-888-468-3774

| Intersil (and design) is a registered trademark of Intersil Americas Inc.

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

Copyright © Intersil Americas Inc. 2006, 2008. All Rights Reserved.

ISL9003A

www.BDTIC.com/Intersil

Ordering Information

V

VOLTAGE

PART NUMBER

(Note 1) PART MARKING

ISL9003AIENZ-T (Note 3) CBK 3.30 -40 to +85 5 Ld SC-70 P5.049
ISL9003AIEMZ-T (Note 3) CBJ 3.00 -40 to +85 5 Ld SC-70 P5.049
ISL9003AIEKZ-T (Note 3) CCE 2.85 -40 to +85 5 Ld SC-70 P5.049
ISL9003AIEJZ-T (Note 3) CCD 2.80 -40 to +85 5 Ld SC-70 P5.049
ISL9003AIEHZ-T (Note 3) CCC 2.75 -40 to +85 5 Ld SC-70 P5.049
ISL9003AIEFZ-T (Note 3) CCB 2.50 -40 to +85 5 Ld SC-70 P5.049
ISL9003AIECZ-T (Note 3) CBY 1.80 -40 to +85 5 Ld SC-70 P5.049
ISL9003AIEBZ-T (Note 3) CBW 1.50 -40 to +85 5 Ld SC-70 P5.049
ISL9003AIRUBZ-T (Note 3) L 1.50 -40 to +85 6 Ld µTDFN L6.1.6x1.6A
ISL9003AIRUCZ-T (Note 4) G 1.80 -40 to +85 6 Ld µTDFN L6.1.6x1.6A
ISL9003AIRUFZ-T (Note 4) F 2.50 -40 to +85 6 Ld µTDFN L6.1.6x1.6A
ISL9003AIRURZ-T (Note 4) M2 2.60 -40 to +85 6 Ld µTDFN L6.1.6x1.6A
ISL9003AIRUHZ-T (Note 4) H 2.75 -40 to +85 6 Ld µTDFN L6.1.6x1.6A
ISL9003AIRUJZ-T (Note 4) J 2.80 -40 to +85 6 Ld µTDFN L6.1.6x1.6A
ISL9003AIRUKZ-T (Note 4) K 2.85 -40 to +85 6 Ld µTDFN L6.1.6x1.6A
ISL9003AIRUMZ-T (Note 4) M 3.00 -40 to +85 6 Ld µTDFN L6.1.6x1.6A
ISL9003AIRUNZ-T (Note 4) N 3.30 -40 to +85 6 Ld µTDFN L6.1.6x1.6A

NOTES:

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

2. For other output voltages, contact Intersil Marketing.

3. These Intersil Pb-free plastic packaged products employ special Pb-free material sets; molding compounds/die attach materials and 100% matte
tin plate PLUS ANNEAL - e3 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. 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..

O

(V)

(Note 2)

TEMP. RANGE

(°C)

PACKAGE

Tape and Reel

(Pb-Free)

PKG.

DWG. NUMBER

2

FN6299.3

March 11, 2008

ISL9003A

www.BDTIC.com/Intersil

Absolute Maximum Ratings Thermal Information

Supply Voltage (VIN) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +7.1V

V

Pin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +3.6V

O

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

Recommended Operating Conditions

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

Supply Voltage (VIN) . . . . . . . . . . . . . . . . . . . . . . . . . . .2.3V to 6.5V

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:

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

5. θ

JA

6. θ

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

JA

Tech Brief TB379.

Thermal Resistance θ

5 Ld SC-70 Package (Note 5) . . . . . . . . . . . . . . . . . 231

6 Ld µTDFN Package (Note 6) . . . . . . . . . . . . . . . . 125

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

Electrical Specifications Unless otherwise noted, all parameters are guaran teed over the operational sup ply voltage and temperat ure range of

the device as follows: T
C

= 1µF; C

O

PARAMETER SYMBOL TEST CONDITIONS

DC CHARACTERISTICS

Supply Voltage V
Ground Current I

Shutdown Current I
UVLO Threshold V

Regulation Voltage Accuracy Initial accuracy at V

Maximum Output Current I
Internal Current Limit I
Drop-out Voltage (Note 8) V

Thermal Shutdown Temperature T

AC CHARACTERISTICS

Ripple Rejection (Note 7) I

Output Noise Voltage (Note 7) V

IN

DD

DDS

UV+

V

UV-

MAX

LIM
DO1IO

V

DO2IO

V

DO3IO
SD+

T

SD-

BYP

Output Enabled; IO = 0µA; V
Output Enabled; I

V

= VO + 0.5V to 6.5V, IO = 10µA to150mA, TJ = +25°C -0.8 +0.8 %

IN

= VO + 0.5V to 6.5V, IO = 10µA to 150mA, TJ = -40°C to

V

IN

+125°C
Continuous 150 mA

= 150mA; VO < 2.5V 300 500 mV
= 150mA; 2.5V ≤ VO ≤ 2.8V 250 400 mV
= 150mA; 2.8V < V

= 10mA, VIN = 2.8V(min), VO = 1.8V, C

O

@ 1kHz 90 dB
@ 10kHz 70 dB
@ 100kHz 50 dB

= 1.5V, TA = +25°C, C

O

BW = 10Hz to 100kHz, I
BW = 10Hz to 100kHz, IO = 10mA 30 µV

= -40°C to +85°C; V

A

= 0.01µF

= 0µA; Full voltage range 57 µA

O

= VO + 0.5V, IO = 10mA, TJ = +25°C -0.7 +0.7 %

IN

O

BYP

O

= (VO + 0.5V) to 6.5V with a minimum VIN of 2.3V; CIN=1µF;

IN

MIN

(Note 9) TYP

2.3 6.5 V

< 4.2V 31 40 µA

IN

1.9 2.1 2.3 V

1.6 1.8 2.0 V

-1.8 +1.8 %

175 265 355 mA

= 0.1µF

BYP

= 0.1µF

= 100µA 20 µV

(Note 9) UNITS

0.5 1.2 µA

200 325 mV
140 °C
110 °C

MAX

(°C/W)

JA

RMS
RMS

3

FN6299.3

March 11, 2008

ISL9003A

www.BDTIC.com/Intersil

Electrical Specifications Unless otherwise noted, all parameters are guaran teed over the operational sup ply voltage and temperat ure range of

the device as follows: T

= 1µF; C

C

O

BYP

PARAMETER SYMBOL TEST CONDITIONS

DEVICE START-UP CHARACTERISTICS

Device Enable tIme t

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

EN

reaches 95% of the V

LDO Soft-start Ramp Rate t

Slope of linear portion of LDO output voltage ramp during start-up 30 60 µs/V

SSR

EN PIN CHARACTERISTICS

Input Low Voltage V
Input High Voltage V
Input Leakage Current I
Pin Capacitance C

IL

IH

, I

IL

IH

Informative 5 pF

PIN

NOTES:

7. Limits established by characterization and are not production tested.
= 0.98 * VO(NOM); Valid for VO greater than 1.85V.

8. V

O

9. Parts are 100% tested at +25°C. Temperature limits established by characterization and are not production tested

= -40°C to +85°C; V

A

= 0.01µF (Continued)

(nom).

O

= (VO + 0.5V) to 6.5V with a minimum VIN of 2.3V; CIN=1µF;

IN

MIN

(Note 9) TYP

MAX

(Note 9) UNITS

250 500 µs

-0.3 0.4 V

1.4 V

IN

0.1 µA

+ 0.3 V

Typical Performance Curves

0.8
VO = 3.3V

= 0mA

+85°C

-40°C

I

LOAD

(%)

O

-0.2

-0.4

OUTPUT VOLTAGE, V

-0.6

-0.8

0.6

0.4

0.2

+25°C

0.0

3.8 4.2 6.25.8
INPUT VOLTAGE (V)

FIGURE 1. OUTPUT VOLT AGE vs INPUT VOL T AGE

(3.3V OUTPUT)

6.63.4 4.6 5.0 5.4

0.2

0.1

0.0

-0.1

-0.2

-0.3

OUTPUT VOLTAGE CHANGE (%)

-0.4

3.3 3.8 4.3 4.8 5.3 5.8 6.3

IO = 0mA

IO = 75mA

I

= 150mA

O

INPUT VOLTAGE (V)

VO = 3.3V
+25°C

FIGURE 2. OUTPUT VOLT AGECHANGE (%) vs INPUT

VOLTAGE (3.3V OUTPUT)

4

FN6299.3

March 11, 2008