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ISL80015A PDF Datasheet ( 特性, スペック, ピン接続図 )

部品番号 ISL80015A
部品説明 Compact Synchronous Buck Converters
メーカ Intersil Corporation
ロゴ Intersil Corporation ロゴ 



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ISL80015A Datasheet, ISL80015A PDF,ピン配置, 機能
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.

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