HIP6521CB Intersil, HIP6521CB Datasheet - Page 12

• Manufacturer Part Number: HIP6521CB
• Description: IC PWM TRIPLE POWER CTRLR 16SOIC
• Manufacturer: Intersil

Specifications of HIP6521CB

• Pwm Type: Voltage Mode
• Number Of Outputs: 4
• Frequency - Max: 325kHz
• Duty Cycle: 100%
• Voltage - Supply: 4.5 V ~ 5.5 V
• Buck: Yes
• Boost: No
• Flyback: No
• Inverting: No
• Doubler: No
• Divider: No
• Cuk: No
• Isolated: No
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 16-SOIC (3.9mm Width)
• Frequency-max: 325kHz
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

HIP6521 DC/DC Converter Application Circuit
Figure 9 shows an application circuit of a power supply for a
microprocessor computer system. The power supply provides
the system memory voltage (V
(V
OUT4
+5V
+3.3V
), the clock voltage (V
+3.3V
(1.8V)
V
(1.5V)
V
V
(2.5V)
OUT4
DUAL
GND
OUT3
S5
OUT2
S3
DUAL
IN
330µF
C8
FIGURE 9. POWER SUPPLY APPLICATION CIRCUIT FOR A MICROPROCESSOR COMPUTER SYSTEM
2SD1802
+
FZT649
+
C13
+
1000µF
Q3
Q4
2SD1802
C16
1000µF
OUT2
1.2µH
12
OUT1
Q5
L1
), and the chip set core
), the AGP bus voltage
12.7K
9.09K
R2
R4
7.50K
R9
3x1200µF
C1-3
7.15K
8.45K
5.90K
R5
R10
DRIVE3
DRIVE4
DRIVE2
R3
+
FB2
FB3
FB4
16
13
14
1
2
15
HIP6521
VCC
HIP6521
U1
11
5
GND
To FB2
To FB4
To OCSET
voltage (V
the circuit, including a Bill-of-Materials and circuit board
description, see Application Note AN9908. Also see Intersil’s
web page (www.intersil.com) for the latest information.
12
C4
1µF
10
8
9
4
7
6
3
COMP
OCSET
BOOT
PHASE
UGATE
FB
LGATE
PGND
OUT3
1000pF
22nF
12K
C15
C5
R1
) from +5V
10pF
C14
45.3K
HUF76129D3S
R7
Q1,2
MA732
D1
C7
0.47µF
DUAL
. For detailed information on
C6
1µF
R8
698
2.5µH
4x1000µF
L2
1.50K
R6
C9-12
+
October 16, 2006
V
OUT1
(2.5V)
FN4837.5