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PDF ISL9111A Data sheet ( Hoja de datos )
| Número de pieza | ISL9111A | |
| Descripción | (ISL9111 / ISL9111A) High Efficiency Synchronous Boost Converter | |
| Fabricantes | Intersil Corporation | |
| Logotipo |  |
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Low Input Voltage, High Efficiency Synchronous Boost
Converter with 1A Switch
ISL9111, ISL9111A
The ISL9111 and ISL9111A provide a power supply solution
for single-cell, dual-cell, or three-cell alkaline, NiCd or NiMH
battery-powered applications. The device has a typical 0.8V
start-up voltage and is capable of supplying up to 5.25V output
voltage. Both devices are guaranteed to supply 100mA from a
single-cell input and 240mA from a dual-cell input when
output is 3.3V. High 1.2MHz switching frequency allows for the
use of tiny, low-profile inductors and ceramic capacitors to
minimize the size of the solution.
The ISL9111 and ISL9111A are internally compensated, fully
integrated synchronous boost converters 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 ISL9111 and ISL9111A address both rechargeable and
non-rechargeable battery applications. The ISL9111 has a
UVLO feature, which will internally shut off at 0.7V protecting a
rechargeable battery. The ISL9111A has this feature disabled
to maximize the usable life of a non-rechargeable single cell
battery. The parts are available in fixed 3.0V, 3.3V and 5.0V
output voltage versions or an adjustable output voltage version
(ADJ). The fixed output voltage version also provides a FAULT
pin for fault condition monitoring. The ISL9111 and ISL9111A
are available in a 6 Ld SOT-23 package.
Features
• Up to 97% Efficiency at Typical Operating Conditions
• Minimum Start-up Voltage
- 0.8V (ISL9111)
- 0.6V (ISL9111A)
• Minimum Operating Voltage
- 0.7V (ISL9111)
- 0.5V (ISL9111A)
• Low Quiescent Current: 20μA (Typical)
• At VOUT = 3.3V
- 100mA Output Current @ VIN = 0.9V
- 240mA Output from @ VIN = 1.8V
• Logic Control Shutdown (Iq < 1µA)
• Output Voltage Up to 5.25V
• Output Disconnect During Shutdown
• Skip Mode Under Light Load Condition
• Undervoltage Lockout (ISL9111 Only)
• Fault Protection: OVP (ADJ Version Only), OTP, Short Circuit
• 6 Ld SOT-23 Package
Applications
• Products Including Portable HDMI and USB-OTG
• Personal Medical Products
• Wireless Mouse/Keyboard
• Bluetooth Headsets
• MP3/MP4 Players/DSC
• Single-cell, Dual-cell and Triple-cell Alkaline, NiCd, NiMH
Powered Products
4.7µH
VIN
4.7µF
1
SW
6 VIN
3
EN
VFLT
1k 4
FAULT
5
VOUT
GND 2
VOUT
4.7µF
ISL9111: 3.0/3.3/5.0V, ISL9111A: 3.0/3.3/5.0V
FIGURE 1. TYPICAL APPLICATION
100
95
90
85
80
75
70
65
60
55
500.1
VIN = 3.6V
VIN = 1.8V VIN = 0.9V
1 10 100
IOUT (mA)
FIGURE 2. FIXED 5V EFFICIENCY
1000
June 4, 2012
FN7602.4
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774 | Copyright Intersil Americas Inc. 2011. All Rights Reserved
Intersil (and design) is a trademark owned by Intersil Corporation or one of its subsidiaries.
All other trademarks mentioned are the property of their respective owners.
1 page  
ISL9111, ISL9111A
Ordering Information
PART NUMBER
(Notes 1, 2, 3)
ISL9111EH30Z-T
PART
MARKING
(Note 4)
GAKA
VOUT (V)
3.0
TEMP RANGE
(°C)
-20 to +85
PACKAGE
(Pb-free)
6 Ld SOT-23
PKG.
DWG. #
P6.064
ISL9111EH30Z-T7A
GAKA
3.0
-20 to +85
6 Ld SOT-23
P6.064
ISL9111EH33Z-T
GALA
3.3
-20 to +85
6 Ld SOT-23
P6.064
ISL9111EH33Z-T7A
GALA
3.3
-20 to +85
6 Ld SOT-23
P6.064
ISL9111EH50Z-T
GAMA
5.0
-20 to +85
6 Ld SOT-23
P6.064
ISL9111EH50Z-T7A
GAMA
5.0
-20 to +85
6 Ld SOT-23
P6.064
ISL9111EHADJZ-T
GARA
Adjustable
-20 to +85
6 Ld SOT-23
P6.064
ISL9111EHADJZ-T7A
GARA
Adjustable
-20 to +85
6 Ld SOT-23
P6.064
ISL9111AEH30Z-T
GBAA
3.0
-20 to +85
6 Ld SOT-23
P6.064
ISL9111AEH30Z-T7A
GBAA
3.0
-20 to +85
6 Ld SOT-23
P6.064
ISL9111AEH33Z-T
GBAB
3.3
-20 to +85
6 Ld SOT-23
P6.064
ISL9111AEH33Z-T7A
GBAB
3.3
-20 to +85
6 Ld SOT-23
P6.064
ISL9111AEH50Z-T
GBAC
5.0
-20 to +85
6 Ld SOT-23
P6.064
ISL9111AEH50Z-T7A
GBAC
5.0
-20 to +85
6 Ld SOT-23
P6.064
ISL9111AEHADJZ-T
GBAD
Adjustable
-20 to +85
6 Ld SOT-23
P6.064
ISL9111AEHADJZ-T7A
GBAD
Adjustable
-20 to +85
6 Ld SOT-23
P6.064
ISL9111H30EV1Z
Evaluation Board for ISL9111EH30Z
ISL9111H33EV1Z
Evaluation Board for ISL9111EH33Z
ISL9111H50EV1Z
Evaluation Board for ISL9111EH50Z
ISL9111HADJEV1Z
Evaluation Board for ISL9111EHADJZ
ISL9111AH30-EVZ
Evaluation Board for ISL9111AH30Z
ISL9111AH33-EVZ
Evaluation Board for ISL9111AH33Z
ISL9111AH50-EVZ
Evaluation Board for ISL9111AH50Z
ISL9111AHADJ-EVZ
Evaluation Board for ISL9111AEHADJZ
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. For Moisture Sensitivity Level (MSL), please see device information page for ISL9111, ISL9111A. For more information on MSL please see Tech Brief
TB363.
4. The part marking is located on the bottom of the part.
5 FN7602.4
June 4, 2012
5 Page 
ISL9111, ISL9111A
Typical Characteristics
100
90 VIN = 1.8V
100
VIN = 2.4V
90
80
70
VIN = 0.9V
VIN = 1.2V
60
80
VIN = 1.8V
VIN = 1.2V
70
60
50
0.1
1
10 100
IOUT (mA)
FIGURE 7. EFFICIENCY AT VOUT = 3.0V
1000
50
0.1
1
10 100
IOUT (mA)
FIGURE 8. EFFICIENCY AT VOUT = 3.3V
1000
300
3.3V_10mA
5.0V_10mA
250
200
150 3.0V_10mA
100 3.0V_0A
50 3.3V_0A
0 5.0V_0A
01234
VIN (V)
FIGURE 9. OUTPUT RIPPLE vs INPUT VOLTAGE
5
32.5
32.0
31.5
+85°C
31.0
30.5
30.0
+25°C
29.5
29.0
-10°C
28.5
28.0
-40°C
27.5
012345
VIN (V)
FIGURE 10. QUIESCENT CURRENT vs TEMPERATURE
6
700
600
500 VO = 3.0V
400
300
VO = 5.0V
200
VO = 3.3V
100
0
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5
VIN (V)
FIGURE 11. MAXIMUM OUTPUT CURRENT vs INPUT VOLTAGE
3.355
3.350
3.345
IOUT = 1mA(PSM)
3.340
3.335
3.330
3.325 IOUT = 50mA(PWM)
3.320
0.6
0.8
1.0 1.2 1.4 1.6
VIN (V)
FIGURE 12. LINE REGULATION, VOUT = 3.3V
1.8
11 FN7602.4
June 4, 2012
11 Page | ||
| Páginas | Total 15 Páginas | |
| PDF Descargar | [ Datasheet ISL9111A.PDF ] | |
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