DATASHEET
ISL62381, ISL62382, ISL62383, ISL62381C, ISL62382C, ISL62383C
High-Efficiency, Quad or Triple-Output System Power Supply Controller for Notebook
Computers
The ISL62381, ISL62382, ISL62383, ISL62381C, ISL62382C
and ISL62383C family of controllers generate supply voltages
for battery-powered systems. These controllers include two
pulse-width modulation (PWM) controllers, adjustable from
0.6V to 5.5V, and two linear regulators, LDO5 and LDO3, that
generate a fixed 5V and an adjustable output respectively, and
each can deliver up to 100mA. The ISL62383 and ISL62383C
have the same outputs as the ISL62381, ISL62382, ISL62381C
and ISL62382C but without LDO3 linear regulator. The channel
2 switching regulator will automatically take over the LDO5 load
when programmed to 5V output. This provides a large power
savings and boosts efficiency. These controllers include on-
board power-up sequencing, two power-good (PGOOD)
outputs, digital soft-start, and internal soft-stop output discharge
that prevent negative voltages on shutdown.
The patented R
3
PWM control scheme provides a low jitter
system with fast response to load transients. Light-load
efficiency is improved with period-stretching discontinuous
conduction mode (DCM) operation. To eliminate noise in
audio frequency applications, an ultrasonic DCM mode is
included, which limits the minimum switching frequency to
approximately 28kHz.
The ISL62381, ISL62382, ISL62381C and ISL62382C are
available in a 32 Ld 5x5 TQFN package, and the ISL62383
and ISL62383C are available in a 28 Ld 4x4 TQFN package.
This family of controllers can operate over the extended
temperature range (-10°C to +100°C).
FN6665
Rev 6.00
October 23, 2015
Features
• High Performance R
3
Technology
• Fast Transient Response
• ±1% Output Voltage Accuracy: -10°C to +100°C
• Two Fully Programmable Switch-Mode Power Supplies with
Independent Operation
• Programmable Switching Frequency
• Integrated MOSFET Drivers and Bootstrap Diode
• Adjustable (+1.2V to +5V) LDO Output
• Fixed +5V LDO Output with Automatic Switchover to SMPS2
• Internal Soft-Start and Soft-Stop Output Discharge
• Wide Input Voltage Range: +5.5V to +25V
• Full and Ultrasonic Pulse-Skipping Mode
• Power-Good Indicator
• Overvoltage, Undervoltage and Overcurrent Protection
• Fault Identification by PGOOD Pull-Down Resistance
• Thermal Monitor and Protection
• Pb-Free (RoHS Compliant)
Applications
• Notebook and Sub-Notebook Computers
• PDAs and Mobile Communication Devices
• 3-Cell and 4-Cell Li+ Battery-Powered Devices
• General Purpose Switching Buck Regulators
FN6665 Rev 6.00
October 23, 2015
Page 1 of 24
ISL62381, ISL62382, ISL62383, ISL62381C, ISL62382C, ISL62383C
Ordering Information
PART
NUMBER
(Notes 1, 2, 3)
ISL62381HRTZ
ISL62382HRTZ
ISL62383HRTZ
ISL62381CHRTZ
(No longer available or
supported)
ISL62382CHRTZ
(No longer available or
supported)
ISL62383CHRTZ
NOTES:
1. Add “-T” suffix for tape and reel. Please refer to
TB347
for details on reel specifications.
2. 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.
3. For Moisture Sensitivity Level (MSL), please see device information page for
ISL62381, ISL62382, ISL62383, ISL62381C, ISL62382C,
ISL62383C.
For more information on MSL please see techbrief
TB363.
PART MARKING
62381 HRTZ
62382 HRTZ
623 83HRTZ
62381 CHRTZ
62382 CHRTZ
62383 CHRTZ
TEMP RANGE (°C)
-10 to +100
-10 to +100
-10 to +100
-10 to +100
-10 to +100
-10 to +100
PACKAGE
(RoHS Compliant)
32 Ld 5x5 TQFN
32 Ld 5x5 TQFN
28 Ld 4x4 TQFN
32 Ld 5x5 TQFN
32 Ld 5x5 TQFN
28 Ld 4x4 TQFN
PKG.
DWG. #
L32.5x5A
L32.5x5A
L28.4x4
L32.5x5A
L32.5x5A
L28.4x4
Pinouts
ISL62381, ISL62382, ISL62381C, ISL62382C
(32 LD TQFN)
TOP VIEW
OCSET2
PHASE2
UGATE2
BOOT2
VOUT2
ISEN2
ISL62383, ISL62383C
(28 LD TQFN)
TOP VIEW
PHASE2
23
OSCET2
UGATE2
22
21
20
19
GND
18
17
16
15
8
FB1
9
VOUT1
10
ISEN1
11
OCSET1
12
EN1
13
PHASE1
14
UGATE1
BOOT2
LGATE2
PGND
LDO5
VIN
LGATE1
BOOT1
VOUT2
ISEN2
EN2
24
EN2
FB2
FB2
28
24
23
22
21
LGATE2
PGND
LDO5
VIN
LDO3IN
LDO3
LDO3FB
LGATE1
PGOOD2
FSET2
FCCM
VCC2
VCC1
FSET1
PGOOD1
1
2
3
4
5
6
7
32
PGOOD2
FSET2
FCCM
VCC2
VCC1
LDO3EN
FSET1
PGOOD1
1
2
3
4
31
30
29
28
27
26
25
27
26
25
GND
5
6
7
8
9
FB1
10
VOUT1
11
ISEN1
12
OSCET1
13
EN1
14
PHASE1
15
UGATE1
16
BOOT1
20
19
18
17
FN6665 Rev 6.00
October 23, 2015
Page 2 of 24
ISL62381, ISL62382, ISL62383, ISL62381C, ISL62382C, ISL62383C
Absolute Maximum Ratings
VIN to GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to +28V
VCC
1,2
, PGOOD
1,2
, LDO5 to GND. . . . . . . . . . . . . . -0.3V to +7.0V
EN
1,2
, LDO3EN . . . . . . . . . . . . . . . . . . -0.3V to GND, VCC1 + 0.3V
VOUT
1,2
, FB
1,2
, LDO3FB, FSET
1,2
. . -0.3V to GND, VCC1 + 0.3V
PHASE
1,2
to GND . . . . . . . . . . . . . . . . . . . . . . . (DC) -0.3V to +28V
(<100ns Pulse Width, 10µJ) . . . . . . . . . . . . . . . . . . . . . . . . . -5.0V
BOOT
1,2
to GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to +33V
BOOT
1,2
to PHASE
1,2
. . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to +7V
UGATE
1,2
. . . . . . . . . . . (DC) -0.3V to PHASE
1,2
, BOOT
1,2
+ 0.3V
(<200ns Pulse Width, 20µJ) . . . . . . . . . . . . . . . . . . . . . . . . -4.0V
LGATE
1,2
. . . . . . . . . . . . . . . . . . . (DC) -0.3V to GND, VCC1 + 0.3V
(<100ns Pulse Width, 4µJ) . . . . . . . . . . . . . . . . . . . . . . . . . . -2.0V
LDO3, LDO5 Output Continuous Current . . . . . . . . . . . . . . +100mA
Thermal Information
Thermal Resistance (Typical, Notes 4, 5)
JA
(°C/W)
JC
(°C/W)
32 Ld TQFN Package . . . . . . . . . . . . .
30
1.75
28 Ld TQFN Package . . . . . . . . . . . . .
37
3
Junction Temperature Range. . . . . . . . . . . . . . . . . .-55°C to +150C
Operating Temperature Range . . . . . . . . . . . . . . . .-10C to +100C
Storage Temperature . . . . . . . . . . . . . . . . . . . . . . . .-65C to +150C
Pb-free reflow profile . . . . . . . . . . . . . . . . . . . . . . . . . .see link below
http://www.intersil.com/pbfree/Pb-FreeReflow.asp
Recommended Operating Conditions
Ambient Temperature Range. . . . . . . . . . . . . . . . . .-10°C to +100°C
Supply Voltage (VIN to GND) . . . . . . . . . . . . . . . . . . . . 5.5V to 25V
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. For
JC
, the “case temp” location is the center of the exposed metal pad on the package underside.
Electrical Specifications
These specifications apply for T
A
= -10°C to +100°C, unless otherwise noted. Typical values are at T
A
= +25°C,
VIN = 12V.
Boldface limits apply over the operating temperature range, -10°C to +100°C.
CONDITIONS
MIN
(Note 8)
TYP
MAX
(Note 8)
UNITS
PARAMETER
VIN
VIN Power-on Reset (POR)
Rising Threshold
Hysteresis
VIN Shutdown Supply Current
VIN Standby Supply Current
LINEAR REGULATOR
LDO5 Output Voltage
I
_LDO5
= 0
5.3
20
-
-
5.4
80
6
150
5.5
150
15
250
V
mV
µA
µA
EN1 = EN2 = GND or Floating, LDO3EN = GND
EN1 = EN2 = GND or Floating, LDO3EN = VCC1
4.9
4.9
-
-
-
4.63
-
-
5.0
5.0
190
4.35
4.15
4.80
2.5
1.2
-
180
-
-
5.1
5.1
-
-
-
4.93
3.2
-
5
-
2.5
1.06
1
V
V
mA
V
V
V
V
V
mA
V
V
µA
I
_LDO5
= 100mA (Note 6)
LDO5 Short-Circuit Current (Note 6)
LDO5 UVLO Threshold Voltage (Note 6)
LDO5 = GND
Rising edge of LDO5
Falling edge of LDO5
SMPS2 to LDO5 Switchover Threshold
SMPS2 to LDO5 Switchover Resistance (Note 6) VOUT2 to LDO5, VOUT2 = 5V
LDO3 Reference Voltage (Note 6)
LDO3 Voltage Regulation Range
LDO3 Short-Circuit Current (Note 6)
LDO3EN Input Voltage
LDO3IN > V
LDO3
+dropout
LDO3 = GND
Rising edge
Falling edge
LDO3EN Input Leakage Current
LDO3 Discharge ON-Resistance
VCC
VCC Input Bias Current (Note 6)
VCC1 Start-up Voltage
EN1 = EN2 = VCC1, FB1 = FB2 = 0.65V
EN1 = EN2 = LDO3EN = GND
LDO3EN = GND or VCC1
LDO3EN = GND
1.2
-
1.1
0.94
-1
-
36
60
-
3.45
2
3.6
-
3.75
mA
V
FN6665 Rev 6.00
October 23, 2015
Page 3 of 24
ISL62381, ISL62382, ISL62383, ISL62381C, ISL62382C, ISL62383C
Electrical Specifications
These specifications apply for T
A
= -10°C to +100°C, unless otherwise noted. Typical values are at T
A
= +25°C,
VIN = 12V.
Boldface limits apply over the operating temperature range, -10°C to +100°C. (Continued)
CONDITIONS
Rising edge
Falling edge
PWM
Reference Voltage (Note 6)
Regulation Accuracy
FB Input Bias Current
Frequency Range
Frequency Set Accuracy (Note 7)
VOUT Voltage Regulation Range
VOUT Soft-Discharge Resistance
POWER-GOOD
PGOOD Pull-Down Impedance
Soft-start, I
_PGOOD
= 5mA sinking
UVP, I
_PGOOD
= 5mA sinking
OVP, I
_PGOOD
= 5mA sinking
OCP, I
_PGOOD
= 5mA sinking
PGOOD Leakage Current
Maximum PGOOD Sink Current (Note 6)
PGOOD Soft-start Delay
From EN high to PGOOD high (for one SMPS
channel)
EN2(1) = Floating, from EN1(2) high to
PGOOD2(1) high
GATE DRIVER
UGATE Pull-Up ON-Resistance (Note 6)
UGATE Source Current (Note 6)
UGATE Pull-Down ON-Resistance (Note 6)
UGATE Sink Current (Note 6)
LGATE Pull-Up ON-Resistance (Note6)
LGATE Source Current (Note 6)
LGATE Pull-Down ON-Resistance (Note 6)
LGATE Sink Current (Note 6)
UGATE to LGATE Deadtime (Note 6)
LGATE to UGATE Deadtime (Note 6)
Bootstrap Diode Forward Voltage (Note 6)
Bootstrap Diode Reverse Leakage Current
CONTROL
FCCM Input Voltage
Low level (DCM enabled)
Float level (DCM with audio filter)
High level (Forced CCM)
FCCM Input Leakage Current
FCCM = GND or VCC1
-
1.9
2.4
-2
-
-
-
-
0.8
2.1
-
2
V
V
V
µA
200mA source current
UGATE-PHASE = 2.5V
250mA source current
UGATE-PHASE = 2.5V
250mA source current
LGATE-PGND = 2.5V
250mA source current
LGATE-PGND = 2.5V
UG falling to LG rising, no load
LG falling to UG rising, no load
2mA forward diode current
V
R
= 25V
-
-
-
-
-
-
-
-
-
-
-
-
1.0
2.0
1.0
2.0
1.0
2.0
0.5
4.0
21
21
0.58
0.2
1.5
-
1.5
-
1.5
-
0.9
-
-
-
-
1
A
A
A
A
ns
ns
V
µA
PGOOD = VCC1
-
-
-
-
-
-
2.20
4.50
32
95
63
32
0
5
2.75
5.60
100
200
150
100
1
-
3.70
7.50
µA
mA
ms
ms
F
SW
= 300kHz
VIN > 6V for VOUT = 5.5V
VOUT regulated to 0.6V
FB = 0.6V
-
-1
-10
200
-12
0.6
-
0.6
-
-
-
-
-
14
-
1
30
600
12
5.5
50
V
%
nA
kHz
%
V
MIN
(Note 8)
4.35
4.10
TYP
4.45
4.20
MAX
(Note 8)
4.55
4.30
UNITS
V
V
PARAMETER
VCC2 POR Threshold
FN6665 Rev 6.00
October 23, 2015
Page 4 of 24
ISL62381, ISL62382, ISL62383, ISL62381C, ISL62382C, ISL62383C
Electrical Specifications
These specifications apply for T
A
= -10°C to +100°C, unless otherwise noted. Typical values are at T
A
= +25°C,
VIN = 12V.
Boldface limits apply over the operating temperature range, -10°C to +100°C. (Continued)
CONDITIONS
FCCM floating
Clear fault level/SMPS OFF level
Delay start level
SMPS ON level
EN Input Leakage Current
ISEN Input Impedance (Note 6)
ISEN Input Leakage Current (Note 6)
PROTECTION
OCSET Input Impedance (Note 6)
OCSET Input Leakage Current (Note 6)
OCSET Current Source
OCP (V
OCSET
-V
ISEN
) Threshold
UVP Threshold
OVP Threshold
Falling edge, referenced to FB
Rising edge, referenced to FB
Falling edge, referenced to FB
OTP Threshold (Note 6)
Rising edge
Falling edge
NOTES:
6. Limits established by characterization and are not production tested.
7. F
SW
accuracy reflects IC tolerance only; it does not include frequency variation due to V
IN
, V
OUT
, L
OUT
, ESR
COUT
, or other application specific
parameters.
8. 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.
EN = VCC1
EN = GND
EN = VCC1
-
-
9
-1.75
81
113
99.5
-
-
600
0.1
10.0
0.0
84
116
103
150
135
-
-
10.5
1.75
87
120
106
-
-
k
µA
µA
mV
%
%
%
°C
°C
EN = GND or VCC1
EN = VCC1
EN = GND
MIN
(Note 8)
-
-
1.9
2.4
-3.5
-
-
TYP
28
-
-
-
-
600
0.1
MAX
(Note 8)
-
0.8
2.1
-
3.5
-
-
UNITS
kHz
V
V
V
µA
k
µA
PARAMETER
Audio Filter Switching Frequency (Note 6)
EN Input Voltage
FN6665 Rev 6.00
October 23, 2015
Page 5 of 24
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