intersil ISL9000 DATA SHEET

®

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Data Sheet March 11, 2008

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ISL9000

FN9217.4

Dual LDO with Low Noise, Very High
PSRR and Low I

ISL9000 is a high performance dual LDO capable of
sourcing 300mA current from each output. It has a low
standby current and very high PSRR and is stable with
output capacitance of 1µF to 10µF with ESR of up to 200mΩ.

The device integrates an individual Power-On-Reset (POR)
function for each output. The POR delay for VO2 can be
externally programmed by connecting a timing capacitor to
the CPOR pin. The POR delay for VO1 is internally fixed at
approximately 2ms. A reference bypass pin is also provided
for connecting a noise filtering capacitor for low noise and
high-PSRR applications.

The quiescent current is typically only 42µA with both LDOs
enabled and active. Separate enable pins control each
individual LDO output. When both enable pins are low, the
device is in shutdown, typically drawing less than 0.1µA.

Several combinations of voltage outputs are standard.
Output voltage options for each LDO range are from 1.5V to

3.3V. Other output voltage options may be available upon
request.

Q

Pinout

ISL9000

(10 LD 3X3 DFN)

TOP VIEW

VIN
EN1
EN2

CBYP

CPOR

1
2
3
4
5

VO1

10

9

VO2

8

POR2

7

POR1

6

GND

Features

• Integrates two 300mA high performance LDOs

• Excellent transient response to large current steps

• ±1.8% accuracy over all operating conditions

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

• Low output noise: typically 30µV

• Very high PSRR: 90dB @ 1kHz

• Extremely low quiescent current: 42µA (both LDOs active)

• Wide input voltage capability: 2.3V to 6.5V

• Low dropout voltage: typically 200mV @ 300mA

• Stable with 1µF to 10µF ceramic capacitors

• Separate enable and POR pins for each LDO

• Soft-start and staged turn-on to limit input current surge
during enable

• Current limit and overheat protection

• Tiny 10 Ld 3mmx3mm DFN package

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

• Pb-free (RoHS compliant)

@ 100µA (1.5V)

RMS

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 or 1-888-468-3774

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

Copyright © Intersil Americas Inc. 2005, 2006, 2008. All Rights Reserved.

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

Ordering Information

ISL9000

PART NUMBER

(Notes 1, 2, 3) PART MARKING

ISL9000IRNNZ DCGA 3.3 3.3 -40 to +85 10 Ld 3x3 DFN L10.3x3C
ISL9000IRNJZ DAAA 3.3 2.8 -40 to +85 10 Ld 3x3 DFN L10.3x3C
ISL9000IRNFZ DBAA 3.3 2.5 -40 to +85 10 Ld 3x3 DFN L10.3x3C
ISL9000IRNCZ DABH 3.3 1.8 -40 to +85 10 Ld 3x3 DFN L10.3x3C
ISL9000IRMNZ DCHA 3.0 3.3 -40 to +85 10 Ld 3x3 DFN L10.3x3C
ISL9000IRMMZ DSAA 3.0 3.0 -40 to +85 10 Ld 3x3 DFN L10.3x3C
ISL9000IRMGZ DCJA 3.0 2.7 -40 to +85 10 Ld 3x3 DFN L10.3x3C
ISL9000IRLLZ DRAA 2.9 2.9 -40 to +85 10 Ld 3x3 DFN L10.3x3C
ISL9000IRKNZ DABF 2.85 3.3 -40 to +85 10 Ld 3x3 DFN L10.3x3C
ISL9000IRKKZ DCAA 2.85 2.85 -40 to +85 10 Ld 3x3 DFN L10.3x3C
ISL9000IRKJZ DDAA 2.85 2.8 -40 to +85 10 Ld 3x3 DFN L10.3x3C
ISL9000IRKFZ DEAA 2.85 2.5 -40 to +85 10 Ld 3x3 DFN L10.3x3C
ISL9000IRKPZ DABG 2.85 1.85 -40 to +85 10 Ld 3x3 DFN L10.3x3C
ISL9000IRKCZ DHAA 2.85 1.8 -40 to +85 10 Ld 3x3 DFN L10.3x3C
ISL9000IRJNZ DCKA 2.8 3.3 -40 to +85 10 Ld 3x3 DFN L10.3x3C
ISL9000IRJMZ DPAA 2.8 3.0 -40 to +85 10 Ld 3x3 DFN L10.3x3C
ISL9000IRJRZ DNAA 2.8 2.6 -40 to +85 10 Ld 3x3 DFN L10.3x3C
ISL9000IRJCZ DMAA 2.8 1.8 -40 to +85 10 Ld 3x3 DFN L10.3x3C
ISL9000IRJBZ DFAA 2.8 1.5 -40 to +85 10 Ld 3x3 DFN L10.3x3C
ISL9000IRGPZ DABE 2.7 1.85 -40 to +85 10 Ld 3x3 DFN L10.3x3C
ISL9000IRGCZ DLAA 2.7 1.8 -40 to +85 10 Ld 3x3 DFN L10.3x3C
ISL9000IRFJZ DGAA 2.5 2.8 -40 to +85 10 Ld 3x3 DFN L10.3x3C
ISL9000IRFDZ DCLA 2.5 2.0 -40 to +85 10 Ld 3x3 DFN L10.3x3C
ISL9000IRFCZ DCMA 2.5 1.8 -40 to +85 10 Ld 3x3 DFN L10.3x3C
ISL9000IRPLZ DKAA 1.85 2.9 -40 to +85 10 Ld 3x3 DFN L10.3x3C
ISL9000IRPPZ DABJ 1.85 1.85 -40 to +85 10 Ld 3x3 DFN L10.3x3C
ISL9000IRCJZ DCNA 1.8 2.8 -40 to +85 10 Ld 3x3 DFN L10.3x3C
ISL9000IRCCZ DCPA 1.8 1.8 -40 to +85 10 Ld 3x3 DFN L10.3x3C
ISL9000IRBLZ DABD 1.5 2.9 -40 to +85 10 Ld 3x3 DFN L10.3x3C
ISL9000IRBJZ DJAA 1.5 2.8 -40 to +85 10 Ld 3x3 DFN L10.3x3C
ISL9000IRBCZ DABC 1.5 1.8 -40 to +85 10 Ld 3x3 DFN L10.3x3C
ISL9000IRBBZ DABB 1.5 1.5 -40 to +85 10 Ld 3x3 DFN L10.3x3C

NOTES:

1. Add “-T” suffix for tape and reel. 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.

VO1 VOLTAGE

(V)

VO2 VOLTAGE

(V) TEMP RANGE (°C)

PACKAGE

(Pb-Free) PKG DWG. #

2

FN9217.4

March 11, 2008

ISL9000

Absolute Maximum Ratings Thermal Information

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

V

1, VO2 Pins. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +3.6V

O

All Other Pins . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3 to (V

IN

+ 0.3)V

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.

NOTES:

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

4. θ

JA

Tech Brief TB379.

5. For θ

, the “case temp” location is the center of the exposed metal pad on the package underside.

JC

Electrical Specifications Unless otherwise noted, all parameters are guaranteed over the operational supply voltage and temperature

range of the device as follows:
T

= -40°C to +85°C; VIN = (VO + 0.5V) to 6.5V with a minimum VIN of 2.3V; CIN = 1µF; CO = 1µF;

A

C

= 0.01µF; C

BYP

PARAMETER SYMBOL TEST CONDITIONS

DC CHARACTERISTICS

Supply Voltage V

IN

Ground Current Quiescent condition: I

One LDO active 25 32 µA

DD1

Both LDO active 42 52 µA

DD2

@ +25°C 0.1 1.0 µA

UV+

UV-

Shutdown Current I
UVLO Threshold V

I
I

DDS

V

Regulation Voltage Accuracy Initial accuracy at V

V

IN

V

IN

T

J

Maximum Output Current I
Internal Current Limit I
Dropout Voltage (Note 7) V

Thermal Shutdown Temperature T

MAX

V
V

T

Continuous 300 mA

LIM
DO1IO
DO2IO
DO3IO
SD+

SD-

AC CHARACTERISTICS

Ripple Rejection (Note 6) I

O

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

Output Noise Voltage (Note 6) I

O

BW = 10Hz to 100kHz

DEVICE START-UP CHARACTERISTICS

= 0.01µF.

POR

O1

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

IN

= VO + 0.5V to 5.5V, IO = 10µA to 300mA, TJ = +25°C -0.8 +0.8 %
= VO + 0.5V to 5.5V, IO = 10µA to 300mA,

= -40°C to +125°C

= 300mA; VO < 2.5V 300 500 mV
= 300mA; 2.5V ≤ VO ≤ 2.8V 250 400 mV
= 300mA; VO > 2.8V 200 325 mV

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

= 100µA, VO = 1.5V, TA = +25°C, C

Thermal Resistance (Notes 4, 5) θ

(°C/W) θJC (°C/W)

JA

10 Ld 3x3 DFN Package . . . . . . . . . . . 50 10

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

MIN

(Note 8) TYP

MAX

(Note 8) UNITS

2.3 6.5 V

= 0µA; IO2 = 0µA

1.9 2.1 2.3 V

1.6 1.8 2.0 V

-1.8 +1.8 %

350 475 600 mA

145 °C
110 °C

= 0.1µF

BYP

BYP

= 0.1µF

30 µV

RMS

3

FN9217.4

March 11, 2008

ISL9000

Electrical Specifications Unless otherwise noted, all parameters are guaranteed over the operational supply voltage and temperature

range of the device as follows:
T

= -40°C to +85°C; VIN = (VO + 0.5V) to 6.5V with a minimum VIN of 2.3V; CIN = 1µF; CO = 1µF;

A

C

= 0.01µF; C

BYP

PARAMETER SYMBOL TEST CONDITIONS

Device Enable Time t

LDO Soft-Start Ramp Rate t

SSR

Time from assertion of the ENx pin to when the output

EN

voltage reaches 95% of the VO(nom)
Slope of linear portion of LDO output voltage ramp during

start-up

EN1, EN2 PIN CHARACTERISTICS

Input Low Voltage V
Input High Voltage V

Input Leakage Current I
Pin Capacitance C

, POR2 PIN CHARACTERISTICS

POR1

POR1

, POR2 Thresholds V

Delay t

POR1

POR2

Delay t

POR1

, POR2 Pin Output Low

IL
IH

, I

IL

IH

Informative 5 pF

PIN

POR+

V

POR-

P1LH

t

P1HL
P2LHCPOR

t

P2HL

V

As a percentage of nominal output voltage 91 94 97 %

@IOL = 1.0mA 0.2 V

OL

Voltage

, POR2 Pin Internal Pull-Up

POR1

R

POR

Resistance

NOTES:

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

7. VOx = 0.98*VOx(NOM); Valid for VOx greater than 1.85V.

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

= 0.01µF. (Continued)

POR

MIN

(Note 8) TYP

MAX

(Note 8) UNITS

250 500 µs

30 60 µs/V

-0.3 0.5 V

1.4 V

IN

+

V

0.3

0.1 µA

87 90 93 %

1.0 2.0 3.0 ms
25 µs

= 0.01µF 100 200 300 ms

25 µs

78 100 180 kΩ

EN1
EN2

VO1
VO2

POR1
POR2

t

EN

V

POR+

t

P1LH

t

P2LH

4

V

V

POR-

POR+

<t

P1HL

<t

P2HL

t

P1HL

t

P2HL

FIGURE 1. TIMING PARAMETER DEFINITION

V

POR-

FN9217.4

March 11, 2008