hip6012cvz-t Intersil Corporation, hip6012cvz-t Datasheet - Page 10

• Manufacturer Part Number: hip6012cvz-t
• Description: Buck And Synchronous-rectifier Pulse-width Modulator Pwm Controller
• Manufacturer: Intersil Corporation

HIP6012 DC-DC Converter Application Circuit
The figure below shows a DC-DC converter circuit for a
microprocessor application, originally designed to employ
the HIP6006 controller. Given the similarities between the
HIP6006 and HIP6012 controllers, the circuit can be
implemented using the HIP6012 controller without any
modifications. However, given the expanded reference
Component Selection Notes:
Q1, Q2 -Intersil MOSFET; RFP25N05
C1-C3 -3 each 680µF 25W VDC, Sanyo MV-GX or equivalent.
C6-C9 -4 each 1000µF 6.3W VDC, Sanyo MV-GX or equivalent.
CR1 -1N4148 or equivalent.
CR2 -3A, 40V Schottky, Motorola MBR340 or equivalent.
L1 -Core: Micrometals T50-52B; Winding: 10 Turns of 17AWG.
ENABLE
12VCC
RTN
VIN
0.1µF
C13
3x 680µF
R2
1K
C1-3
R7
10K
R3
1K
SPARE
10
R1
SPARE
SS
RT
FB
C16
0.01µF
1206
6
3
1
5
C15
C12
1µF
REF
FIGURE 11. DC-DC CONVERTER APPLICATION CIRCUIT
33pF
C14
+
-
+
-
R4
OSC
SPARE
15K
R5
HIP6012
MONITOR AND
PROTECTION
U1
14
4
VCC
COMP
+
-
-
+
COMP
TP1
7
HIP6012
GND
10
11
13
12
2
9
8
OCSET
BOOT
UGATE
PHASE
LGATE
PGND
PVCC
voltage tolerance range, the HIP6012-based converter may
require additional output capacitance. 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:
www.intersil.com
1000pF
JP1
3.01K
C19
Q1
R6
Q2
CR2
MBR
340
4148
CR1
C20
0.1µF
C17-18
2x 1µF
1206
PHASE
TP2
4x 1000µF
L1
C6-9
December 27, 2004
RTN
V
OUT
FN4324.2