DATASHEET
ISL9113
Low Input Voltage and High Efficiency Synchronous Boost Converter with 1.3A
Switch
The ISL9113 provides a power supply solution for devices
powered by three-cell alkaline, NiCd, NiMH or one-cell
Li-Ion/Li-Polymer batteries. It offers either a fixed 5V or an
adjustable output option for USB-OTG or portable HDMI
applications. The device is guaranteed to supply 500mA from
a 3V input and 5V output and has a typical 1.3A peak current
limit. High 1.8MHz switching frequency allows for the use of
tiny, low-profile inductors and ceramic capacitors to minimize
the size of the overall solution.
The ISL9113 is an internally compensated, fully integrated
synchronous converter optimized for efficiency with minimal
external components. At light load, the device enters skip
mode and consumes only 20µA of quiescent current, resulting
in higher efficiency at light loads and maximum battery life.
The device is available in an 8 Ld DFN package and a 6 bump
WLCSP.
FN8313
Rev 3.00
February 23, 2015
Features
• Up to 95% efficiency at typical operating conditions
• Input voltage range: 0.8V to 4.7V
• Output current: Up to 500mA (V
BAT
= 3.0V, V
OUT
= 5.0V)
• Low quiescent current: 20μA (typical)
• Logic control shutdown (I
Q
< 1µA)
• Fixed 5V, 5.1V or adjustable output
• 1.2V EN high logic
• Output disconnect during shutdown
• Skip mode under light load condition
• Undervoltage lockout
• Fault protection: OVP (ADJ version only), OTP, short circuit
• 8 Ld 2mmx2mm DFN package and 6 bump
0.8mmx1.36mm WLCSP
Related Literature
•
AN1816,
“ISL9113ERAZ-EVZ, ISL9113ER7Z-EVZ Evaluation
Board User Guide”
Applications
• Products including portable HDMI and USB-OTG
• Smartphones
• Tablet and mobile internet devices
100
95
2.2µH
V
BAT
= 4.2V
V
BAT
= 3.6V
V
BAT
= 3.0V
90
85
8
SW
2
3
4.7µF
1
6
V
OUT
=
5V/500mA
EFFICIENCY (%)
80
75
70
65
60
55
50
0.0001
0.001
0.01
LOAD CURRENT (A)
0.1
V
OUT
= 5.0V
1
V
BAT
= 1.2V
V
BAT
= 2.3V
V
BAT =
0.8V TO 4.7V
4.7µF
7
5
V
OUT
NC
V
BAT
EN
PGND
V
FAULT
1k
4
FAULT
AGND
FIGURE 1. TYPICAL APPLICATION (ISL9113ER7Z)
FIGURE 2. FIXED 5V EFFICIENCY (ISL9113ER7Z)
FN8313 Rev 3.00
February 23, 2015
Page 1 of 15
ISL9113
Block Diagrams
ISL9113ER7Z
C1
V
BAT
7
V
OUT
2
C2
UVLO
V
INT
VOLTAGE
SELECTOR
START-UP
GATE
DRIVER
V
OUT
OVP
AND
ANTI-CROSS
CONDUCTION
N-WELL
SWITCH
8
SW
L1
ZCD
4
FAULT
CONTROL LOGIC
SW
V
OUT
CURRENT
SENSE
AND
DIGITAL
SOFT-START
V
OUT
CURRENT
LIMIT
SLOPE COMP
EN
OFF
ON
5
FAULT
MONITORING
g
m
1.8MHz
OSCILLATOR
THERMAL
SHUTDOWN
1
6
FN8313 Rev 3.00
February 23, 2015
V
INT
REFERENCE
GENERATOR
VOLTAGE
CLAMP
Page 2 of 15
ISL9113
Block Diagrams
(Continued)
ISL9113ERAZ
C1
V
BAT
7
V
OUT
C2
2
UVLO
V
INT
VOLTAGE
SELECTOR
START-UP
GATE
DRIVER
V
OUT
OVP
AND
ANTI-CROSS
CONDUCTION
N-WELL
SWITCH
8
SW
L1
EN
5
OFF
ON
CONTROL LOGIC
ZCD
SW
V
OUT
CURRENT
SENSE
R1
DIGITAL
SOFT-START
AND
CURRENT
LIMIT
SLOPE COMP
FB
FAULT
MONITORING
g
m
4
V
INT
VOLTAGE
CLAMP
R2
1.8MHz
OSCILLATOR
THERMAL
SHUTDOWN
1
6
REFERENCE
GENERATOR
FN8313 Rev 3.00
February 23, 2015
Page 3 of 15
ISL9113
Pin Configurations
FIXED OUTPUT
(8 LD DFN)
TOP VIEW
PGND
V
OUT
NC
FAULT
1
2
3
4
8
7
6
5
SW
V
BAT
AGND
EN
PGND
V
OUT
NC
FB
ADJUSTABLE OUTPUT
(8 LD DFN)
TOP VIEW
1
2
3
4
8
7
6
5
SW
V
BAT
AGND
EN
FIXED OUTPUT
(6 BUMP WLCSP)
TOP VIEW
SW
V
BAT
A1
B1
A2
PGND
ADJUSTABLE OUTPUT
(6 BUMP WLCSP)
TOP VIEW
SW
V
BAT
A1
B1
A2
PGND
B2
V
OUT
B2
V
OUT
EN
C1
C2
FAULT
EN
C1
C2
FB
Pin Descriptions
8 LD DFN
PIN NUMBERS
FIXED
OUTPUT
1
2
3
4
-
5
ADJUSTABLE
OUTPUT
1
2
3
-
4
5
6 BUMP WLCSP
PIN NUMBERS
FIXED
OUTPUT
A2
B2
-
C2
-
C1
ADJUSTABLE
OUTPUT
A2
B2
-
-
C2
C1
SYMBOL
PIN DESCRIPTIONS
PGND
V
OUT
NC
FAULT
FB
EN
Power ground
Device output
No connection
Fault output; outputs logic LOW under a number of fault conditions (see
Table 1 on page 9).
Feedback pin of the converter. Connect voltage divider resistors between
V
OUT
, FB and GND for desired output.
The EN pin is an active-HIGH logic input for enabling the device. When
asserted HIGH, the boost function begins. When asserted LOW, the device
is completely disabled, and current is blocked from flowing from the SW pin
to the output and vice versa. This pin should be tied either HIGH to enable
the device, or LOW to disable the device.
Analog ground
Device input supply from a battery. Connect a 4.7µF ceramic capacitor to
the power ground.
The SW pin is the switching node of the power converter. Connect one
terminal of the inductor to the SW pin and the other to power input.
The exposed pad (available only in the 8 Ld DFN package) must be
connected to PGND pin for proper electrical performance. Place as many
vias as possible under the pad connecting to the system GND plane for
optimal thermal performance.
6
7
8
6
7
8
-
B1
A1
-
-
B1
A1
-
AGND
V
BAT
SW
EPAD
FN8313 Rev 3.00
February 23, 2015
Page 4 of 15
ISL9113
Ordering Information
PART NUMBER
(Notes
1, 4)
ISL9113ER7Z-T (Note
2)
ISL9113ERAZ-T (Note
2)
ISL9113EI9Z-T (Note
3)
ISL9113EIAZ-T (Note
3)
ISL9113ER7Z-EVZ
ISL9113ERAZ-EVZ
ISL9113EI9Z-EVZ
ISL9113EIAZ-EVZ
NOTES:
1. Please refer to Tech Brief
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. 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.
4. For Moisture Sensitivity Level (MSL), please see device information page for
ISL9113.
For more information on MSL please see Tech Brief
TB363.
137
13A
139
13A
PART
MARKING
V
OUT
(V)
5.0
Adjustable
5.1
Adjustable
TEMP RANGE
(°C)
-20 to +85
-20 to +85
-20 to +85
-20 to +85
PACKAGE
(RoHS Compliant)
8 Ld DFN
8 Ld DFN
6 Bump WLCSP
6 Bump WLCSP
PKG.
DWG. #
L8.2x2D
L8.2x2D
W3x2.6
W3x2.6
Evaluation Board for ISL9113ER7Z
Evaluation Board for ISL9113ERAZ
Evaluation Board for ISL9113EI9Z
Evaluation Board for ISL9113EIAZ
FN8313 Rev 3.00
February 23, 2015
Page 5 of 15
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