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ISL8130 PDF Datasheet ( 特性, スペック, ピン接続図 )

部品番号 ISL8130
部品説明 Advanced Single Universal Pulse-Width Modulation (PWM) Controller
メーカ Intersil
ロゴ Intersil ロゴ 



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ISL8130 Datasheet, ISL8130 PDF,ピン配置, 機能
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ISL8130
Advanced Single Universal Pulse-Width Modulation (PWM) Controller
FN7954
Rev.4.00
Mar 24, 2017
The ISL8130 is a versatile controller that integrates control,
output adjustment, monitoring, and protection functions into a
single package for synchronous Buck, standard Boost, SEPIC,
and Flyback topologies.
The ISL8130 provides simple, single feedback loop, voltage
mode control with fast transient response. The output voltage
of the converter can be precisely regulated to as low as 0.6V.
The switching frequency is adjustable from 100kHz to 1.4MHz.
The error amplifier features a 15MHz gain-bandwidth product
and 6V/µs slew rate that enables fast transient response. The
PWM duty cycle ranges from 0% to 100% in transient
conditions. The capacitor from the ENSS pin to ground sets
soft-start slew rate.
The ISL8130 monitors the output voltage and generates a
power-good (PGOOD) signal when soft-start sequence is
complete and the output is within regulation. A built-in,
overvoltage protection circuit prevents the output voltage from
going above typically 115% of the set point. For a Buck and
Buck-Boost configuration, protection from overcurrent
conditions is provided by monitoring the rDS(ON) of the upper
MOSFET to inhibit the PWM operation appropriately. This
approach improves efficiency by eliminating the need for a
current sensing resistor. For other topologies, overcurrent
protection is achieved using a current sensing resistor.
Features
• Universal controller for multiple DC/DC converters
• Wide input range
- 4.5V to 5.5V
- 5.5V to 28V
• Programmable soft-start
• Supports pre-biased load applications
• Resistor-selectable switching frequency
- 100kHz to 1.4MHz
• External reference tracking mode
• Fast transient response
- High-bandwidth error amplifier
• Extensive circuit protection functions
- Overvoltage, overcurrent, over-temperature
• Pb-free (RoHS compliant)
Applications
• Power supplies for microprocessors/ASICs
• Ethernet routers and switchers
• Medical instrument power supplies
Related Literature
• For a full list of related documents, visit our website
- ISL8130 product page
5.6V to 16V
C1
C2
VIN VCC5
C3 C4
PVCC
C5
R1 499Ω
C7
0.1µF
ENSS
MONITOR AND
PROTECTION
RT
47.5kΩ PGOOD
OSC
R2 CDEL
0.1µF
REF
C8 SGND
-
+
FB
+
-
OCSET
ISEN
Rcs
5mΩ
L1
LGATE 10µH
BOOT
UGATE
PHASE
D1
C9 C10
Q1 220µF x 2
R3
3.32kΩ
10kΩ
R6
C15
470pF
C11 COMP
470pF
R5 C12
R4 12.1kΩ 47nF
174kΩ
REFOUT REFIN
C14
2.2µF
C6
32V
FIGURE 1. BOOST CONVERTER
FN7954 Rev.4.00
Mar 24, 2017
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