ISL89411 INTERSIL [Intersil Corporation], ISL89411 Datasheet - Page 24

• Manufacturer Part Number: ISL89411
• Description: Intersil Power Management Solutions
• Manufacturer: INTERSIL [Intersil Corporation]

24
Single Output Buck-Boost Regulators
ISL9110
ISL9110A
ISL9112
Intersil Power Management Solutions  2012  www.intersil.com
Device
1.2A High Efficiency Buck-Boost
Regulators
1.2A High Efficiency Buck-Boost
Regulators
1.2A High Efficiency Buck-Boost
Regulators
2A Buck-Boost
with Best in Class
Transient Response
• More than 2A @ 2V from Lithium Ion
• Input battery range of 1.8V to 5.5V
• High Fsw– 2.5MHz, Sync 2.75 to 3.3MHz
• Adjustable Output Voltage down to 0.8V
• Fully Synchronous in any Operating
• Internal Digital Soft-start
• Remote Voltage Sensing with Fixed
• Battery Monitor and Power Good Pins
• Voltage Programmability Through I
• Excellent Transient Response During
Key Features
Battery
(ISL9110)
Mode
Output Versions
(ISL9110)
Bus (ISL9112)
Buck/Boost Transitions
Device Description
Outputs
# of
1
1
1
(min)
V
(V)
1.8
1.8
1.8
IN
2
(max)
C
V
(V)
5.5
5.5
5.5
IN
V
(min)
(V)
1.9
OUT
1
1
(max)
V
(V)
5.2
5.2
OUT
5
Best in Class Transient Response
Simple Layout
ISL9112 is smaller than power inductor
Application
(max)
Single Output Buck-Boost Regulators: ISL9110, ISL9112
I
OUT
(A)
1.2
1.2
1.2
10µF
(μA)
Cin
35
35
35
Iq
Vin = 1.8
to 5.5V
Inductor
4x4mm
Frequency
Switching
(MHz)
TRANSIENT LOAD RESPONSE
2.5
2.5
2.5
PVIN
VIN
EN
7.8mm
GND
LX1
ISL9112
Efficiency
2.2µH
Peak
(%)
COUT
95
95
95
ISL9112
CIN
LX2
PGND FB
MODE
VOUT
SCLK
SDA
Capability
SYNCH
RVBAT
Y
Y
Y
6.2mm
Vout = 1.9
to 5.2V
Control Type
Current Mode
Current Mode
Current Mode
Cout
10µF
12 Ld TDFN
20 Ld WLCSP
12 Ld TDFN
Package