ISL6522CBZ Intersil, ISL6522CBZ Datasheet

IC PWM BUCK BST VM 14SOIC

ISL6522CBZ

Manufacturer Part Number
ISL6522CBZ
Description
IC PWM BUCK BST VM 14SOIC
Manufacturer
Intersil
Datasheet

Specifications of ISL6522CBZ

Pwm Type
Voltage Mode
Number Of Outputs
1
Frequency - Max
1MHz
Duty Cycle
100%
Voltage - Supply
10.8 V ~ 13.2 V
Buck
Yes
Boost
Yes
Flyback
No
Inverting
No
Doubler
No
Divider
No
Cuk
No
Isolated
No
Operating Temperature
0°C ~ 70°C
Package / Case
14-SOIC (3.9mm Width), 14-SOL
Frequency-max
1MHz
Lead Free Status / RoHS Status
Lead free / RoHS Compliant

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
ISL6522CBZ
Manufacturer:
INTERSIL
Quantity:
20 000
Company:
Part Number:
ISL6522CBZ
Quantity:
500
Part Number:
ISL6522CBZ-T
Manufacturer:
INTERSIL
Quantity:
10 000
Part Number:
ISL6522CBZA-TR5190
Manufacturer:
INTERSIL
Quantity:
8 200
Buck and Synchronous Rectifier
Pulse-Width Modulator (PWM) Controller
The ISL6522 provides complete control and protection for a
DC-DC converter optimized for high-performance micro-
processor applications. It is designed to drive two N-Channel
MOSFETs in a synchronous rectified buck topology. The
ISL6522 integrates all of the control, output adjustment,
monitoring and protection functions into a single package.
The output voltage of the converter can be precisely
regulated to as low as 0.8V, with a maximum tolerance of
±1% over temperature and line voltage variations.
The ISL6522 provides simple, single feedback loop, voltage-
mode control with fast transient response. It includes a
200kHz free-running triangle-wave oscillator that is
adjustable from below 50kHz to over 1MHz. The error
amplifier features a 15MHz gain-bandwidth product and
6V/µs slew rate which enables high converter bandwidth for
fast transient performance. The resulting PWM duty ratio
ranges from 0–100%.
The ISL6522 protects against overcurrent conditions by
inhibiting PWM operation. The ISL6522 monitors the current
by using the r
the need for a current sensing resistor.
Pinouts
COMP
DS(ON)
OCSET
COMP
EN
SS
FB
GND
RT
SS
FB
EN
1
2
3
4
of the upper MOSFET which eliminates
1
2
3
4
5
6
7
16
5
SOIC, TSSOP
PowerPC
TOP VIEW
TOP VIEW
®
15
6
QFN
GND
1
®
14
7
is a trademark of IBM. AlphaPC™ is a trademark of Digital Equipment Corporation. Pentium
Data Sheet
13
8
14
13
12
11
10
9
8
VCC
PVCC
LGATE
PGND
BOOT
UGATE
PHASE
12
11
10
9
PVCC
LGATE
PGND
BOOT
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774
Features
• Drives two N-Channel MOSFETs
• Operates from +5V or +12V input
• Simple single-loop control design
• Fast transient response
• Excellent output voltage regulation
• Overcurrent fault monitor
• Converter can source and sink current
• Small converter size
• 14-lead SOIC and TSSOP package and 16-lead 5x5mm
• QFN Package
• Pb-free plus anneal available (RoHS compliant)
Applications
• Power supply for Pentium
• High-power 5V to 3.xV DC-DC regulators
• Low-voltage distributed power supplies
- Voltage-mode PWM control
- High-bandwidth error amplifier
- Full 0–100% duty ratio
- 0.8V internal reference
- ±1% over line voltage and temperature
- Does not require extra current sensing element
- Uses MOSFETs r
- Constant frequency operation
- 200kHz free-running oscillator programmable from
QFN Package
- Compliant to JEDEC PUB95 MO-220 QFN-Quad Flat
- Near Chip-Scale Package Footprint; Improves PCB
AlphaPC™ microprocessors
50kHz to over 1MHz
No Leads-Product Outline.
Efficiency and Thinner in Profile
Copyright © Intersil Americas Inc. 2001, 2002, 2004-2006. All Rights Reserved
March 10, 2006
|
Intersil (and design) is a trademark of Intersil Americas Inc.
DS(ON)
®
®
is a registered trademark of Intel Corporation.
, Pentium Pro, PowerPC
ISL6522
FN9030.8
®
and

Related parts for ISL6522CBZ

ISL6522CBZ Summary of contents

Page 1

... PVCC LGATE 11 10 PGND 9 BOOT CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures. 1-888-INTERSIL or 1-888-468-3774 Copyright © Intersil Americas Inc. 2001, 2002, 2004-2006. All Rights Reserved ISL6522 FN9030.8 DS(ON) ® ® , Pentium Pro, PowerPC and | Intersil (and design trademark of Intersil Americas Inc. ...

Page 2

... Ordering Information PART PART TEMP. NUMBER MARKING RANGE (°C) ISL6522CB ISL6522CB ISL6522CBZ 6522CBZ (Note) ISL6522CBZA 6522CBZ (Note) ISL6522IB ISL6522IB - ISL6522IBZ 6522IBZ - (Note) ISL6522CV ISL6522CV ISL6522CVZ ISL6522CVZ (Note) ISL6522IV ISL6522IV - ISL6522IVZ ISL6522IVZ - (Note) Typical Application SS RT REF FB 2 ISL6522 Ordering Information PKG. ...

Page 3

Block Diagram OCSET REFERENCE FB COMP RT 3 ISL6522 POWER-ON RESET (POR OVER CURRENT 4V 200µA PWM 0.8V COMPARATOR REF + + - - ERROR AMP OSCILLATOR VCC EN 10µA SOFT- SS START BOOT UGATE PHASE GATE INHIBIT ...

Page 4

Absolute Maximum Ratings Supply Voltage +15.0V CC Boot ...

Page 5

Electrical Specifications Recommended Operating Conditions, Unless Otherwise Noted (Continued) PARAMETER Upper Gate Sink Lower Gate Source Lower Gate Sink PROTECTION OCSET Current Source Soft-Start Current Typical Performance Curves R PULLUP T TO +12V 1000 100 R PULLDOWN ...

Page 6

OCSET Connect a resistor (R ) from this pin to the drain of the OCSET upper MOSFET internal 200µA current source OCSET (I ), and the upper MOSFET on-resistance (r OCS the converter overcurrent (OC) trip point ...

Page 7

VOLTAGE V OSC(MIN) CLAMP ON V STEADY STATE ⋅ ----------- OSC MIN OUT SS SteadyState ⋅ ------------------------------------------------ ∆V ----------- = – = ...

Page 8

ISL6522 may be exceeded and the IC will experience a catastrophic failure and the converter will no longer be operational. Ensuring that there is a path for the current to follow other than the capacitance ...

Page 9

V OSC DRIVER PWM COMPARATOR - DRIVER + ∆V OSC E REFERENCE ERROR AMP DETAILED COMPENSATION COMPONENTS COMP ISL6522 REF FIGURE 7. VOLTAGE - MODE ...

Page 10

ESR (effective series resistance) and voltage rating requirements rather than actual capacitance requirements. High frequency decoupling capacitors should be placed as close to the power pins of the load as physically possible. Be careful not to add inductance in ...

Page 11

Losses while Sourcing Current 1 2 × × ⋅ × UPPER DS ...

Page 12

... Q1 Fairchild MOSFET; RFP25N05 12 ISL6522 implemented using the ISL6522 controller without any modifications. Detailed information on the circuit, including a complete bill of materials and circuit board description, can be found in Application Note AN9722. See Intersil’s home page on the web: http://www.intersil.com. C12 C19 1µF VCC ...

Page 13

Small Outline Plastic Packages (SOIC) N INDEX 0.25(0.010) H AREA E - SEATING PLANE - -C- α 0.10(0.004) 0.25(0.010 NOTES: 1. Symbols are defined in the ...

Page 14

Thin Shrink Small Outline Plastic Packages (TSSOP) N INDEX 0.25(0.010) E AREA E1 - 0.05(0.002) SEATING PLANE - -C- α 0.10(0.004) 0.10(0.004 NOTES: 1. These package ...

Page 15

... Accordingly, the reader is cautioned to verify that data sheets are current before placing orders. Information furnished by Intersil is believed to be accurate and reliable. However, no responsibility is assumed by Intersil or its subsidiaries for its use; nor for any infringements of patents or other rights of third parties which may result from its use ...

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