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PDF ISL80015 Data sheet ( Hoja de datos )
| Número de pieza | ISL80015 | |
| Descripción | Compact Synchronous Buck Converters | |
| Fabricantes | Intersil Corporation | |
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DATASHEET
Compact Synchronous Buck Converters
ISL80020, ISL80020A, ISL80015, ISL80015A
The ISL80020, ISL80020A, ISL80015 and ISL80015A are highly
efficient, monolithic, synchronous step-down DC/DC converters
that can deliver up to 2A of continuous output current from a 2.7V
to 5.5V input supply. They use peak current mode control
architecture to allow very low duty cycle operation. They operate
at either 1MHz or 2MHz switching frequency, thereby providing
superior transient response and allowing for the use of small
inductors. They have excellent stability.
Features
• VIN range 2.7V to 5.5V
• IOUT maximum is 1.5A or 2A (see Table 1 on page 2)
• Switching frequency is 1MHz or 2MHz (see Table 1 on page 2)
• Overcurrent and short circuit protection
• Over-temperature/thermal protection
The ISL80020, ISL80020A, ISL80015 and ISL80015A integrate
very low rDS(ON) MOSFETs in order to maximize efficiency. In
addition, since the high-side MOSFET is a PMOS, the need for a
Boot capacitor is eliminated, thereby reducing external
component count. They can operate at 100% duty cycle
(at 1MHz).
The device is configured in PWM (pulse width modulation) for
fast transient response, which helps reduce the output noise
and RF interference.
• Negative current protection
• Power-good and enable
• 100% duty cycle (1MHZ)
• Internal soft-start and soft-stop
• VIN undervoltage lockout and VOUT overvoltage protection
• Up to 95% peak efficiency
Applications
These devices are offered in a space saving 8 pin 2mmx2mm
TDFN lead free package with exposed pad for improved thermal
performance. The complete converter occupies less than
64mm2 area.
• General purpose POL
• Industrial, instrumentation, and medical equipment
• Telecom and networking equipment
• Game console
VIN
GND
EN
PG
+2.7V...+5.5V
C1
22µF
1 VIN
2 EN
ISL80015, ISL80020
3 SGND
4 PG
EPAD
9
L1
PHASE 8
PGND 7
+1.8V/2A
C2
22µF
NC 6
FB 5
0.6V
C3
22pF
R1
200kΩ 1%
R2
100kΩ 1%
VOUT
GND
R1
=
R2
V---V--F--O--B---
–
1
(EQ. 1)
FIGURE 1. TYPICAL APPLICATION CIRCUIT CONFIGURATION
100
90
80
70
2.5VOUT
1.5VOUT
1.8VOUT
3.3VOUT
60
50
400.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0
OUTPUT LOAD (A)
FIGURE 2. EFFICIENCY vs LOAD, fSW = 2MHz, VIN = 5V, TA = +25°C
February 17, 2015
FN6692.1
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 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  
ISL80020, ISL80020A, ISL80015, ISL80015A
Ordering Information
PART NUMBER
(Notes 1, 2, 3)
TAPE AND REEL
QUANTITY
PART
MARKING
TECHNICAL
SPECIFICATIONS
TEMP. RANGE
(°C)
PACKAGE
Tape and Reel
(RoHS Compliant)
PKG.
DWG. #
ISL80020IRZ-T
1000
020
2A, 1MHz
-40 to +85
8 Ld TDFN
L8.2x2C
ISL80020IRZ-T7A
250
020
2A, 1MHz
-40 to +85
8 Ld TDFN
L8.2x2C
ISL80020AIRZ-T
1000
20A
2A, 2MHz
-40 to +85
8 Ld TDFN
L8.2x2C
ISL80020AIRZ-T7A
250
20A
2A, 2MHz
-40 to +85
8 Ld TDFN
L8.2x2C
ISL80015IRZ-T
1000
015
1.5A, 1MHz
-40 to +85
8 Ld TDFN
L8.2x2C
ISL80015IRZ-T7A
250
015
1.5A, 1MHz
-40 to +85
8 Ld TDFN
L8.2x2C
ISL80015AIRZ-T
1000
A15
1.5A, 2MHz
-40 to +85
8 Ld TDFN
L8.2x2C
ISL80015AIRZ-T7A
250
A15
1.5A, 2MHz
-40 to +85
8 Ld TDFN
L8.2x2C
ISL80020FRZ-T
1000
20F
2A, 1MHz
-40 to +125 8 Ld TDFN
L8.2x2C
ISL80020FRZ-T7A
250
20F
2A, 1MHz
-40 to +125 8 Ld TDFN
L8.2x2C
ISL80020AFRZ-T
1000
0AF
2A, 2MHz
-40 to +125 8 Ld TDFN
L8.2x2C
ISL80020AFRZ-T7A
250
0AF
2A, 2MHz
-40 to +125 8 Ld TDFN
L8.2x2C
ISL80015FRZ-T
1000
15F
1.5A, 1MHz
-40 to +125 8 Ld TDFN
L8.2x2C
ISL80015FRZ-T7A
250
15F
1.5A, 1MHz
-40 to +125 8 Ld TDFN
L8.2x2C
ISL80015AFRZ-T
1000
5AF
1.5A, 2MHz
-40 to +125 8 Ld TDFN
L8.2x2C
ISL80015AFRZ-T7A
250
5AF
1.5A, 2MHz
-40 to +125 8 Ld TDFN
L8.2x2C
NOTES:
1. Please refer to 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 ISL80020, ISL80020A, ISL80015, ISL80015A. For more information on
MSL please see techbrief TB363.
Submit Document Feedback
5
FN6692.1
February 17, 2015
5 Page 
ISL80020, ISL80020A, ISL80015, ISL80015A
Typical Performance Curves (Continued)
PHASE 5V/DIV
VOUT 10mV/DIV
VOUT RIPPLE 50mV/DIV
IL 0.5A/DIV
500ns/DIV
FIGURE 22. STEADY STATE AT NO LOAD, fSW = 2MHz, VIN = 5V,
TA = +25°C
IL 1A/DIV
200µs/DIV
FIGURE 23. LOAD TRANSIENT, fSW = 2MHz, VIN = 5V, TA = +25°C
VOUT 0.5V/DIV
IL 1A/DIV
PG 5V/DIV
500µs/DIV
FIGURE 24. OVERCURRENT PROTECTION, fSW = 2MHz, VIN = 5V,
TA = +25°C
VOUT 0.5V/DIV
PG 2V/DIV
1ms/DIV
FIGURE 25. OVER-TEMPERATURE PROTECTION, fSW = 2MHz,
VIN = 5V, TA = +163°C
Submit Document Feedback 11
FN6692.1
February 17, 2015
11 Page | ||
| Páginas | Total 16 Páginas | |
| PDF Descargar | [ Datasheet ISL80015.PDF ] | |
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