ISL12022M-R5421 INTERSIL [Intersil Corporation], ISL12022M-R5421 Datasheet - Page 40

• Manufacturer Part Number: ISL12022M-R5421
• Description: Providing high-performance solutions for every link in the signal chain
• Manufacturer: INTERSIL [Intersil Corporation]

40
Intersil Signal Path Products  2012  www.intersil.com
Power Management
►
Single Output Boost Regulators
ISL97701
ISL98012
ISL97516
ISL97519
ISL97519A
ISL97656
Device
• Up to 87% Efficiency
• 2.3V to 5.5V Input
• Up to 28V Output
• Integrated Boost Schottky Diode
• Input Voltage Disconnect Switch for
• Synchronization Input
• 10 Ld 3x3 DFN Package
• Pb-free (RoHS Compliant)
Key Features
Boost Regulator
with Integrated
Schottky and Input
Disconnect Switch
Micro Power Shutdown
Integrated FET Switching Regulators
Boost Regulator with Integrated Schottky
and Input Disconnect Switch
Wide Input Voltage, Adjustable
Frequency Boost Regulator
600kHz/1.2MHz PWM Step-Up Regulator
1% Output Accuracy PWM Step-Up
Regulator with 1.294V Reference
1% Output Accuracy PWM Step-Up
Regulator with 1.24V Reference
High Current PWM Step-Up Regulator
with 1.24V Reference
Device Description
V
IN
(V)
2.3
1.8
2.3
2.3
2.3
2.3
Min
V
IN
13.2
5.5
5.5
5.5
5.5
5.5
(V)
Max
1.1 * V
1.1* V
1.1* V
1.1* V
1.1* V
V
Min
(V)
4.5
OUT
IN
IN
IN
IN
IN
Max (V)
5V
A Simple Circuit to Generate Plus and Minus Supplies
Using a Boost Regulator
V
5µF
Up to 2.5W Output Power Delivered in a 3x3mm TDFN
Package
C
28
17
25
25
25
25
OUT
0
Reference Design to Generate a Positive and Negative Supply
VDDOUT
VDD
NEN
NSYNC
GND
Recommended Maximum Output Power vs Input Voltage
Limit (A)
Current
Boost
1.2
1.4
2
2
2
4
ISL97701
10µH
L
3.2
2.9
2.6
2.3
2.0
1.7
1.4
1.1
0.8
0.5
1
-1.7%, +1.15%
2.3
Voltwage &
Feedback
Accuracy
Q
1.294V
1.294V
±2.6%
±1.6%
1.15V
1.33V
1.24V
1.24V
1
±3%
±1%
±1%
2.7
VOUT
Single Output Boost Regulators: ISL97701
D
1
LX
FB
3.1
V
4.7µF
0
C
Integrated Schottky, Low quiescent current and
input disconnect switch for micropower shutdown
Adjustable Soft-Start, 380kHz to 750kHz SF, Low
battery detection
Adjustable Soft-Start, 600kHz/1.2MHz switching
frequency
Adjustable Soft-Start, 620kHz/1.25MHz switching
frequency
Adjustable Soft-Start, 620kHz/1.25MHz switching
frequency
Adjustable Soft-Start, 640kHz/1.22MHz switching
frequency, high output current capability
1
+
-
+
3.5
4.7µF
C
20.99V
2
V
R
383kΩ
R
18.2kΩ
1
2
IN
-
3.9
(V)
D
D
3
33.2kΩ
2
R
4.3
3
ISL28107
5V
4.7µF
C
4.7
3
Features
+
-
100kΩ
R
-
+
4
5.1
V+
V-
5.5
100kΩ
R
5
ISL28107
100kΩ
R
- 25.35V
-
6
+
5V
V-
V+
VOUT
VOUT
10 Ld DFN
10 Ld MSOP
8 Ld MSOP
8 Ld MSOP
8 Ld MSOP
10 Ld TDFN
Package
20V
(positive)
-20V
(negative)