ISL9012
Data Sheet
December 10, 2015
Dual LDO with Low Noise, Low IQ, and
High PSRR
FN9220.4
Features
ISL9012 is a high performance dual LDO capable of
sourcing 150mA current from Channel 1, and 300mA from
Channel 2. The device has a low standby current and
high-PSRR and is stable with output capacitance of 1µF to
10µF with ESR of up to 200m.
The device integrates a Power-On-Reset (POR) function for
the VO2 output. The POR delay for VO2 can be externally
programmed by connecting a timing capacitor to the CPOR
pin. A reference bypass pin is also provided for connecting a
noise-filtering capacitor for low noise and high PSRR
applications.
• Integrates two high performance LDOs
- VO1 - 150mA output
- VO2 - 300mA output
• Excellent transient response to large current steps
• Excellent load regulation:
1% voltage change across full range of load current
• High PSRR: 70dB @ 1kHz
• Wide input voltage capability: 2.3V to 6.5V
• Extremely low quiescent current: 45µA (both LDOs on)
• Low dropout voltage: typically 120mV @ 150mA
The quiescent current is typically only 45µA with both LDO’s
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.
• Low output noise: typically 30µVRMS @ 100µA (1.5V)
Several combinations of voltage outputs are standard.
Output voltage options for each LDO range from 1.5V to
3.3V. Other output voltage options are available on request.
• POR output, with adjustable delay time indicates when the
VO2 output is good
• Stable with 1 to10µF ceramic capacitors
• Separate enable pins for each LDO
• Soft-start to limit input current surge during enable
• Current limit and overheat protection
Pinout
• ±1.8% accuracy over all operating conditions
ISL9012
(10 LD 3X3 DFN)
TOP VIEW
• Tiny 10 Ld 3x3mm DFN package
• -40°C to +85°C operating temperature range
VIN
1
10 VO1
EN1
2
9
VO2
• Pin compatible with Micrel MIC2212
• Pb-free (RoHS compliant)
EN2
3
8
POR
CBYP
4
7
NC
Applications
CPOR
5
6
GND
• 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 trademark of Intersil Americas Inc.
Copyright © Intersil Americas LLC 2005, 2006. 2008, 2015. All Rights Reserved.
All other trademarks mentioned are the property of their respective owners.
ISL9012
Ordering Information
PART NUMBER
(Notes 1, 2, 3)
PART MARKING
VO1 VOLTAGE
(V)
VO2 VOLTAGE
(V)
TEMP RANGE
(°C)
PACKAGE
(Pb-free)
PKG. DWG. #
ISL9012IRNNZ
DCTA
3.3
3.3
-40 to +85
10 Ld 3x3 DFN
L10.3x3C
ISL9012IRNJZ (No
longer available,
recommended
replacement:
ISL9000AIRNJZ)
DAPA
3.3
2.8
-40 to +85
10 Ld 3x3 DFN
L10.3x3C
ISL9012IRNFZ (No
longer available,
recommended
replacement:
ISL9000AIRNFZ)
DARA
3.3
2.5
-40 to +85
10 Ld 3x3 DFN
L10.3x3C
ISL9012IRMNZ
DCYA
3.0
3.3
-40 to +85
10 Ld 3x3 DFN
L10.3x3C
ISL9012IRMMZ (No
longer available,
recommended
replacement:
ISL9000AIRMGZ-T)
DAAK
3.0
3.0
-40 to +85
10 Ld 3x3 DFN
L10.3x3C
ISL9012IRMGZ
DCBC
3.0
2.7
-40 to +85
10 Ld 3x3 DFN
L10.3x3C
ISL9012IRJNZ
DCBD
2.8
3.3
-40 to +85
10 Ld 3x3 DFN
L10.3x3C
ISL9012IRJMZ (No
longer available,
recommended
replacement:
ISL9000AIRJBZ-T)
DAAH
2.8
3.0
-40 to +85
10 Ld 3x3 DFN
L10.3x3C
ISL9012IRJRZ (No
longer available,
recommended
replacement:
ISL9000AIRJNZ-T)
DAAG
2.8
2.6
-40 to +85
10 Ld 3x3 DFN
L10.3x3C
ISL9012IRJCZ (No
longer available,
recommended
replacement:
ISL9000AIRJBZ-T)
DAAF
2.8
1.8
-40 to +85
10 Ld 3x3 DFN
L10.3x3C
ISL9012IRFDZ
DCBK
2.5
2.0
-40 to +85
10 Ld 3x3 DFN
L10.3x3C
ISL9012IRFCZ
DCBL
2.5
2.0
-40 to +85
10 Ld 3x3 DFN
L10.3x3C
ISL9012IRCJZ
DCBN
1.8
2.8
-40 to +85
10 Ld 3x3 DFN
L10.3x3C
ISL9012IRCCZ
DCBP
1.8
1.8
-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.
2
FN9220.4
December 10, 2015
ISL9012
Absolute Maximum Ratings
Thermal Information
Supply Voltage (VIN) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +7.1V
VO1, VO2 Pin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +3.6V
All Other Pins . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3 to (VIN + 0.3)V
Thermal Resistance (Notes 4, 5)
Recommended Operating Conditions
Ambient Temperature Range (TA) . . . . . . . . . . . . . . .-40°C to +85°C
Supply Voltage (VIN) . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.3V to 6.5V
JA (°C/W)
JC (°C/W)
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
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:
4. 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.
5. JC, “case temperature” location is at the center of the exposed metal pad on the package underside. See Tech Brief TB379.
Electrical Specifications
Unless otherwise noted, all parameters are guaranteed over the operational supply voltage and temperature
range of the device as follows:
TA = -40°C to +85°C; VIN = (VO + 0.5V) to 6.5V with a minimum VIN of 2.3V; CIN = 1µF; CO = 1µF;
CBYP = 0.01µF; CPOR = 0.01µF
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
(Note 8)
TYP
MAX
(Note 8) UNITS
DC CHARACTERISTICS
Supply Voltage
2.3
VIN
Ground Current
6.5
V
Quiescent condition: IO1 = 0µA; IO2 = 0µA
IDD1
One LDO active
25
40
µA
IDD2
Both LDO active
45
60
µA
Shutdown Current
IDDS
@+25°C
0.1
1.0
µA
UVLO Threshold
VUV+
1.9
2.1
2.3
V
1.6
1.8
VUVRegulation Voltage Accuracy
Variation from nominal voltage output, VIN = VO + 0.5 to 5.5V,
TJ = -40°C to +125°C
-1.8
Line Regulation
VIN = (VOUT + 1.0V relative to highest output voltage) to 5.5V
-0.2
Load Regulation
IOUT = 100µA to 150mA (VO1 and VO2)
2.0
V
+1.8
%
0
0.2
%/V
0.1
0.7
%
IOUT = 100µA to 300mA (VO2)
Maximum Output Current
IMAX
Internal Current Limit
Thermal Shutdown Temperature
%
150
mA
VO2: Continuous
300
mA
ILIM
Dropout Voltage (Note 7)
1.0
VO1: Continuous
350
475
600
mA
VDO1
IO = 150mA; VO 2.1V (VO1)
125
200
mV
VDO2
IO = 300mA; VO < 2.5V (VO2)
300
500
mV
VDO3
IO = 300mA; 2.5V VO 2.8V (VO2)
250
400
mV
VDO4
IO = 300mA; VO > 2.8V (VO2)
200
325
mV
TSD+
145
°C
TSD-
110
°C
@ 1kHz
70
dB
@ 10kHz
55
dB
@ 100kHz
40
dB
AC CHARACTERISTICS
Ripple Rejection
IO = 10mA, VIN = 2.8V(min), VO = 1.8V, CBYP = 0.1µF
3
FN9220.4
December 10, 2015
ISL9012
Electrical Specifications
Unless otherwise noted, all parameters are guaranteed over the operational supply voltage and temperature
range of the device as follows:
TA = -40°C to +85°C; VIN = (VO + 0.5V) to 6.5V with a minimum VIN of 2.3V; CIN = 1µF; CO = 1µF;
CBYP = 0.01µF; CPOR = 0.01µF (Continued)
PARAMETER
SYMBOL
Output Noise Voltage
MIN
(Note 8)
TEST CONDITIONS
TYP
IO = 100µA, VO = 1.5V, TA = +25°C, CBYP = 0.1µF
BW = 10Hz to 100kHz (Note 6)
30
MAX
(Note 8) UNITS
µVrms
DEVICE START-UP CHARACTERISTICS
Device Enable TIme
tEN
Time from assertion of the ENx pin to when the output voltage
reaches 95% of the VO(nom)
250
500
µs
LDO Soft-start Ramp Rate
tSSR
Slope of linear portion of LDO output voltage ramp during startup
30
60
µs/V
EN1, EN2 PIN CHARACTERISTICS
Input Low Voltage
VIL
-0.3
0.5
V
Input High Voltage
VIH
1.4
VIN+0.3
V
0.1
µA
Input Leakage Current
IIL, IIH
Pin Capacitance
CPIN
Informative
5
pF
POR PIN CHARACTERISTICS
POR Thresholds
VPOR+
As a percentage of nominal output voltage
VPORPOR Delay
tPLH
CPOR = 0.01µF
91
94
97
%
87
90
93
%
100
200
300
ms
25
tPHL
POR Pin Output Low Voltage
VOL
POR Pin Internal Pull-Up
Resistance
@IOL = 1.0mA
RPOR
78
100
µs
0.2
V
180
k
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.
EN2
tEN
VPOR+
VPOR-
VPOR+
VPOR-
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