|
|
PDF ISL91107 Data sheet ( Hoja de datos )
| Número de pieza | ISL91107 | |
| Descripción | High Efficiency Buck-boost Regulator | |
| Fabricantes | Intersil | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de ISL91107 (archivo pdf) en la parte inferior de esta página. Total 2 Páginas | ||
|
No Preview Available !
DATASHEET
To request the full datasheet, please visit www.intersil.com/products/isl91107
High Efficiency Buck-boost Regulator with 3.8A
Switches
ISL91107
The ISL91107 is a highly-integrated buck-boost switching
regulator that accepts input voltages either above or below the
regulated output voltage. Unlike other buck-boost regulators,
this regulator automatically transitions between operating
modes without significant output disturbance.
This device is capable of delivering up to 2A of output current
(PVIN = 2.8V, VOUT = 3.3V) and provides excellent efficiency
due to its fully synchronous 4-switch architecture. No-load
quiescent current of only 45µA also optimizes efficiency under
light-load conditions.
The ISL91107 is designed for standalone applications and
supports 3.3V fixed output voltages or variable output voltages
with an external resistor divider. Output voltages as low as 1V
or as high as 5.2V are supported using an external resistor
divider.
The ISL91107 requires only a single inductor and very few
external components. Power supply solution size is minimized
by a 2.15mmx1.51mm WLCSP and a 2.5MHz switching
frequency, which further reduces the size of external
components.
Features
• Accepts input voltages above or below regulated output
voltage
• Automatic and seamless transitions between buck and
boost modes
• Input voltage range: 1.8V to 5.5V
• Output current: up to 2A (PVIN = 2.8V, VOUT = 3.3V)
• High efficiency: up to 96%
• 45µA quiescent current maximizes light load efficiency
• 2.5MHz switching frequency minimizes external component
size
• Selectable forced PWM mode
• Fully protected for short-circuit, over-temperature and
undervoltage
• Small 2.15mmx1.51mm WLCSP
Applications
• Smartphones and tablet PCs
• Wireless communication devices
• 2G/3G/4G power amplifiers
Related Literature
• AN1940, “ISL91107IIN-EVZ, ISL91107IIA-EVZ Evaluation
Board User Guide”
VIN =
1.8V TO 5.5V
C1
22µF
ISL91107IIAZ
PVIN
LX1
VIN
MODE
EN
LX2
VOUT
FB
GND PGND
L1
1µH
VOUT = 3.3V
R1
187k
R2
60.4k
C4
22pF
C2
2x22µF
FIGURE 1. TYPICAL APPLICATION
100
VIN = 3.8V
95 VIN = 4.2V
VIN = 3.3V
90
85
VIN = 2.5V
80
75
70
1
10 100 1000
LOAD CURRENT (mA)
FIGURE 2. EFFICIENCY vs OUTPUT CURRENT (VOUT = 3.3V)
March 12, 2015
FN8584.2
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 LLC 2014, 2015. 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 | ||
| Páginas | Total 2 Páginas | |
| PDF Descargar | [ Datasheet ISL91107.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| ISL9110 | (ISL9110 / ISL9112) 1.2A High Efficiency Buck-Boost Regulators |  Intersil Corporation |
| ISL91106 | High Efficiency High Current Buck-Boost Regulator | Intersil |
| ISL91106A | High Efficiency High Current Buck-Boost Regulator | Intersil |
| ISL91107 | High Efficiency Buck-boost Regulator | Intersil |
| Número de pieza | Descripción | Fabricantes |
| SLA6805M | High Voltage 3 phase Motor Driver IC. |
 Sanken |
| SDC1742 | 12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters. |
 Analog Devices |
|
DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares, |
| DataSheet.es | 2020 | Privacy Policy | Contacto | Buscar |