RT3601EA 반도체 회로 부품 판매점
Signal Phase PWM Controller
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 Richtek |
® RT3601EA
Signal Phase PWM Controller with Integrated Driver for
IMVP8 Mobile CPU Core Power Supply
General Description
The RT3601EA is an IMVP8 compliant CPU power
controller with 1 embedded driver. The RT3601EA adopts
G-NAVPTM (Green Native AVP) which is Richtek's
proprietary topology derived from finite DC gain of EA
amplifier with current mode control, making it easy to set
the droop to meet all Intel CPU requirements of AVP
(Adaptive Voltage Positioning). Based on the G-NAVPTM
topology, the RT3601EA also features a quick response
mechanism for optimized AVP performance during load
transient. The RT3601EA supports mode transition function
with various operating states. A serial VID (SVID) interface
is built in the RT3601EA to communicate with Intel IMVP8
compliant CPU. The RT3601EA supports VID on-the-fly
function with three different slew rates : Fast, Slow and
Decay. By utilizing the G-NAVPTM topology, the operating
frequency of the RT3601EA varies with VID, load and input
voltage to further enhance the efficiency even in CCM.
Moreover, the G-NAVPTM with CCRCOT (Constant Current
Ripple COT) technology provides superior output voltage
ripple over the entire input/output range. The built-in high
accuracy DAC converts the SVID code ranging from 0.25V
to 1.52V with 5mV per step. The RT3601EA integrates a
high accuracy ADC for platform setting functions, such as
quick response trigger level. Besides, the setting function
also supposes this two rails address exchange. The
RT3601EA provides VR ready output signals. It also
features complete fault protection functions including over-
voltage (OV), negative voltage (NV), over-current (OC) and
under-voltage lockout (UVLO). The RT3601EA is available
in the WQFN-28L 4x4 small foot print package.
Features
Intel IMVP8 Serial VID Interface Compatible Power
Management States
Single Phase with 1 Embedded MOSFET Drvier
PWM Controller
G-NAVPTM (Green Native Adaptive Voltage
Positioning) Topology
0.5% DAC Accuracy
Differential Remote Voltage Sensing
Built-in ADC for Platform Programming
Accurate Current Balance
System Thermal Compensated AVP
Diode Emulation Mode at Light Load Condition for
Multiple or Single Phase Operation
Fast Transient Response
VR Ready Indicator
Thermal Throttling
Current Monitor Output
OVP, OCP, NVP, UVLO
Slew Rate Setting/Address Flip Function
Rail Address Flexibility
DVID Enhancement
Applications
IMVP8 Intel Core Supply
Notebook/ Desktop Computer/ Servers Multi-phase CPU
Core Supply
AVP Step-Down Converter
Simplified Application Circuit
To PCH
To CPU
RT3601EA
PGOOD
PWM
VR_HOT
VCLK
VDIO
PHASE
ALERT
Driver
MOSFET
MOSFET
VCORE
VCORE
Copyright ©2016 Richtek Technology Corporation. All rights reserved.
DS3601EA-00 June 2016
is a registered trademark of Richtek Technology Corporation.
www.richtek.com
1
RT3601EA
Ordering Information
RT3601EA
Package Type
QW : WQFN-28L 4x4 (W-Type)
Note :
Lead Plating System
G : Green (Halogen Free and Pb Free)
Richtek products are :
RoHS compliant and compatible with the current require-
ments of IPC/JEDEC J-STD-020.
Suitable for use in SnPb or Pb-free soldering processes.
Marking Information
3H= : Product Code
3H=YM
DNN
YMDNN : Date Code
Pin Configuration
(TOP VIEW)
28 27 26 25 24 23 22
VCC 1
21 ISENN
EN
VR_HOT
VDIO
ALERT
VCLK
VR_READY
2
3
4
5
6
7
GND
29
20 ISENP
19 PSYS
18 IMON
17 VREF
16 TSEN
15 DRVEN
8 9 10 11 12 13 14
WQFN-28L 4x4
Functional Pin Description
Pin No
1
2
3
4
Pin Name
VCC
EN
VR_HOT
VDIO
Pin Function
Controller Power Supply. Connect this pin to 5V and place a decoupling capacitor
2.2F at least. The decoupling capacitor is as close PWM controller as possible.
VR Enable Control Input.
Thermal Monitor Output, this Pin is Active Low.
VR and CPU Data Transmission Interface.
5 ALERT
6 VCLK
SVID Alert. (Active low)
Synchronous Clock from the CPU.
7 VR_READY VR Ready Indicator.
8 BOOT
Bootstrap Supply for High-Side Gate MOSFET Driver.
9 UGATE
10 PHASE
11 LGATE
12 PVCC
High-Side Driver Output. Connect the pin to the gate of high-side MOSFET.
Switch Node of High-Side Driver. Connect the pin to high-side MOSFET source
together with the low-side MOSFET drain and inductor.
Low-Side Driver Output. This pin drives the gate of low-side MOSFET.
Driver Power Supply Input. Connect this pin to GND by a minimum 2.2F
ceramic Capacitor.
13 VIN
VIN Input Pin. Connect a low pass filter to this pin to set on-time.
14 PWM
PWM Outputs.
15 DRVEN
16 TSEN
17 VREF
External Driver Enable Control. Connecting to driver enable pin.
Thermal Sense Input. Platform can use this to set BOOT voltage and DVID
threshold.
Fixed 0.6V Output Reference Voltage. This voltage is only used to offset the output
voltage of IMON pin. Between this pin and GND must be placed a exact 0.47F
capacitor and 3.9 resistor.
Copyright ©2016 Richtek Technology Corporation. All rights reserved.
www.richtek.com
2
is a registered trademark of Richtek Technology Corporation.
DS3601EA-00 June 2016
|
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제조업체: Richtek
( richtek )
RT3601EA controller
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국내 전력반도체 판매점
상호 : 아이지 인터내셔날
전화번호 : 051-319-2877
[ 홈페이지 ]
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