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PDF HIP6201 Data sheet ( Hoja de datos )
| Número de pieza | HIP6201 | |
| Descripción | Transient Voltage Regulator DeCAPitator | |
| Fabricantes | Intersil Corporation | |
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Data Sheet
HIP6200, HIP6201
February 1998 File Number 4423.2
Transient Voltage Regulator
DeCAPitator™
The Intersil DeCAPitator helps to stabilize a power system
voltage during severe transients. It accomplishes this by
supplying current when the voltage is more than 1% low or
sinking current when the voltage is higher than 1.5% from
the average load voltage. The fast transient response of the
DeCAPitator can make up for the slow response time of
many switching DC-DC converters.
Although the HIP6200 serves as a simple replacement for
large output capacitors for any dynamic load, it is especially
useful in stabilizing the CPU core voltage in portable
computer applications, where size and efficiency are major
concerns. The DeCAPitator enables power supply designs
for more powerful microprocessors without increasing
converter size or decreasing converter efficiency.
The DeCAPitator acts independently of the PWM control
circuitry. This simplifies converter layout because the
DeCAPitator and the load may be located separately from
the DC-DC converter. The DeCAPitator should be located
near the load for optimum performance.
Pinouts
HIP6200 (SOIC)
TOP VIEW
PVCC 1
PGND 2
GND 3
VCC 4
8 EN/OT
7 OUT
6 SNS
5 CAP
Features
• Saves Power System Size and Cost
- Replaces Expensive Bulk Capacitors
- Small 8 Lead SOIC Package
• Linear Regulator Response
- Greater than 5MHz Bandwidth
• Very Low Static Power Dissipation
- Shutdown Current . . . . . . . . . . . . . . . . . . . . . . . . . < 5µA
- Power Dissipated Only During Load Transients
• Over Temperature Shutdown/Signal
• Simplifies Power Supply Layout
- Allows for Remotely Located CPU DC-DC Converter
Applications
• Notebook Computers
• Pentium®, Pentium Pro, and Pentium II Power Supplies
Ordering Information
PART NUMBER
HIP6200CB
HIP6201CB
TEMP.
RANGE (oC)
PACKAGE
0 to 70 8 Ld SOIC
0 to 70 8 Ld SOIC
PKG.
NO.
M8.15
M8.15
HIP6201 (SOIC)
TOP VIEW
PVCC 1
PGND 2
GND 3
VCC 4
8 EN
7 OUT
6 SNS
5 CAP
2-441
Pentium® is a registered trademark of Intel Corporation.
DeCAPitator™ is a trademark of Intersil Corporation.
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
http://www.intersil.com or 407-727-9207 | Copyright © Intersil Corporation 1999
1 page  
HIP6200, HIP6201
Application Information
Theory of Operation
The HIP6200 is used in conjunction with a switching DC-DC
converter to provide a regulated DC voltage. The output
voltage of a DC-DC converter changes instantly with sudden
load changes characteristic of today’s microprocessors. This
change occurs because the bulk capacitors are imperfect;
they have parasitic resistances (ESR) and inductances (ESL)
which translate into voltage drops as the load is initially
supplied by the bulk capacitance. Also, due to its output
inductor, the DC-DC converter takes about 10-20µs (typical)
before it provides the load current required by the CPU. The
HIP6200 contains two high-speed linear regulators which are
inactive except during the converter response time after high
di/dt load transients. When active, the linear regulators
maintain a small difference between the desired and actual
output voltage.
The Typical Application Diagrams below illustrate how the
DeCAPitator functions. The left side shows a common DC-
DC converter response to a fast ‘low-to-high’ load transient.
The right side shows a similar response with a HIP6200
circuit employed. The HIP6200 allows the use of fewer bulk
capacitors to handle the regulation requirements of the high
edge-rate load transients. The response time of the
HIP6200’s linear regulators (100ns typical) are fast enough
to help with the leading edge spike. Output voltage
deviations during the converter response time are reduced
with the HIP6200 since it helps supply the load while the
inductor current slews.
Typical Application Diagrams
BATTERY
POWER
PWM
CONTROLLER
VOUT
ICPU
IL
CBULK
CPU
LOAD
BATTERY
POWER
PWM
CONTROLLER
+5V
IL
VCAP
CCAP
VCC PVCC
41
CPVCC
EN 8
7 OUT
HIP6201
CAP 5
6
IOUT
3 2 SNS
GND
PGND
ICPU
CPU
LOAD
VOUT
CBULK
CBULK: (11) 220µF, 10V, 0.1Ω Tantalums
ICPU
IL
VOUT
CBULK: (5) 100µF, 10V, 0.1Ω Tantalums
CCAP: small Ceramic (0805)
CVCC: small Ceramic (0805)
CPVCC: (1) 100µF, 10V, 0.1Ω Tantalum
ICPU
IL
VCAP
VOUT
IOUT
FIGURE 1. PORTABLE CPU WITHOUT HIP6200, HIP6201
2-445
CONVERTER
RESPONSE TIME (TR)
FIGURE 2. PORTABLE CPU WITH HIP6200, HIP6201
5 Page | ||
| Páginas | Total 9 Páginas | |
| PDF Descargar | [ Datasheet HIP6201.PDF ] | |
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