ANPEC APW7015KC-TU, APW7015KC-TR Datasheet
APW7015
Advanced PWM and Dual Linear Power Control
Features General Description
The APW7015 integrates a PWM controller and Dual
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3 Regulated Voltage are provided
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Switching Power for VTT(1.25V)
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Linear1 Regulator for FBVDDQ(2.5V)
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Linear2 Regulator for NVVDD(2.05V)
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Simple Single-Loop Control Design
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• Voltage-Mode PWM Control
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• Excellent Output Voltage Regulation
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• PWM Output: ±2% Full Temperature
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• Linear Output: ±3% Full Temperature
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• Fast Transient Response
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• High-Bandwidth Error Amplifier
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• Full 0% to 100% Duty Ratio
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• TTL-Compatible 3-Bit Digital-to-Analog Output
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Voltage Selection
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• 0.05V Steps from 1.3V
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• Power-Good Output Voltage Monitor
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• Over-Voltage and Over-Current Fault
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• Monitors Small Converter Size
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• Constant Frequency Operation(200kHz)
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• Programmable Oscillator from 50kHz to
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to 1.65V
DC
DC
1MHz
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• Reduce External Component Count
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Applications
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• Motherboard Power Regulation for Computers
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• Low-Voltage Distributed Power Supplies
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• VGA Card Power Regulation
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linear controller, as well as the monitoring and protection functions into a single package, which provides three controlled power outputs with over-voltage and over-current protections. The PWM controller regulates the DDR reference voltage with a synchronous-rectified buck converter. The linear controller regulates power for microprocessor core voltage
and Memory Voltage.
TTL Compatible 3-bit digital-to-analog converter
(DAC) that adjusts the output voltage from 1.3V
to 1.65VDC in 0.05V steps is included in APW7015.
The precision reference and voltage-mode PWM
control provide ±2% static regulation. The linear
controller drives an external N-channel MOSFET to
provide adjustable voltage.
The APW7015 monitors all the output voltages, and
a single Power Good signal is issued when the PWM
Voltage is within 10% of the DAC setting and the
other output levels are above their under-voltage
thresholds. Additional built-in over-voltage protection for the PWM output uses the lower MOSFET to
prevent output voltages above 115% of the DAC
setting. The PWM over-current function monitors the
output current by using the voltage drop across the
upper MOSFET’s R
,eliminating the need for a
DS(ON)
current sensing resistor.
Pin Description
VCC
DRIVE2
NC
NC
VID2
VID1
VID0
PGOOD
VSEN2
FAULT
NC
SS
1
2
3
4
5
6
7
8
9
10
11
12
24
23
22
21
20
19
18
17
16
15
14
13
DC
UGATE
PHASE
LGATE
PGND
OCSET
VSEN1
FB
COMP
VSEN3
DRIVE3
GND
VAUX
ANPEC reserves the right to make changes to improve reliability or manufacturability without notice, and advise
customers to obtain the latest version of relevant information to verify before placing orders.
Copyright ANPEC Electronics Corp.
Rev. P.1 - Mar., 2001
www.anpec.com.tw1
APW7015
Ordering Information
APW7015
Block Diagram
VAUX
DRIVE3
VSEN2
DRIVE2
-
1.5V
+
+
1.26V
-
+
+
-
×
0.75
VSEN3
-
+
OSCILLATOR
Handling Code
Temp. Range
Package Code
-
+
INHIBIT
FAULT
FAULT
LINEAR
UNDER-
VOLTAGE
START &
LUV
SOFT
FAULT
LOGIC
SS
Package Code
K : SOP - 24
Temp. Range
C : 0 to 70 C
°
Handling Code
TU : Tube TR : Tape & Reel
OCSETVSEN1
×
1.10
+
-
×
0.90
×
1.15
OV
ERROR
AMP1
V
CC
DACOUT
A
28
µ
4.5V
+
-
+
-
+
-
COMPFB
OC1
+
-
+
-
PWM
COMP1
CONVERTER
VID0
200µA
PWM1
TTL D/A
(DAC)
VID1 VID2
INHIBIT
CONTROL
GATE
VCC
Power-on
Reset
(POR)
DRIVER1
SYNCH
DRIVE
VAUX
PGOOD
VCC
UGATE
PHASE
V
CC
LGATE
PGND
GND
Absolute Maximum Ratings
Symbol Parameter Rating Unit
V
CC
VI , V
T
A
T
J
T
STG
T
S
Copyright ANPEC Electronics Corp.
Rev. P.1 - Mar., 2000
Supply Voltage 15 V
Input , Output or I/O Voltage GND -0.3 V to VCC +0.3 V
O
Operating Ambient Temperature Range 0 to 70
Junction Temperature Range 0 to 125
Storage Temperature Range -65 to +150
Soldering Temperature 300 ,10 seconds
www.anpec.com.tw2
C
°
C
°
C
°
C
°
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