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  Richtek Technology Electronic Components Datasheet  

RT8152C Datasheet

Single-Phase PWM Controller

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RT8152C pdf
RT8152C/D
Single-Phase PWM Controller for CPU / GPU Core Power
Supply
General Description
Features
The RT8152C/D is a single phase PWM controller with
integrated MOSFET drivers. Moreover, it is compliant with
Intel IMVP6.5 Voltage Regulator Specification to fulfill its
mobile CPU core and Render core voltage regulator
requirements. The RT8152C/D adopts G-NAVP (Green-
Native AVP), which is a Richtek's proprietary topology
derived from finite DC gain compensator constant on-time
mode, making it an easy-setting PWM controller meeting
all Intel AVP (Active Voltage Positioning) mobile CPU/
Render requirements. The output voltage of the RT8152C/
D is set by 7-bit VID code. The built-in high accuracy DAC
converts the VID code ranging from 0V to 1.5V with
12.5mV per step. The system accuracy of the controller
can reach 1.5%. The part supports VID on-the-fly and mode
change on-the-fly functions that are fully compliant with
IMVP6.5 specification. It operates in single phase and
diode emulation modes. It can reach up to 90% efficiency
in different modes according to different loading conditions.
The droop load-line can be easily programmed by setting
the DC gain of the error amplifier. With proper
compensation, the load transient can achieve optimized
AVP performance. This chip controls soft-start and output
transition slew rate via a capacitor. It supports both DCR
and sense-resistor current sensing. The RT8152C/D
provides power good and thermal throttling output signals
for IMVP6.5 Render core specification, and additional clock
enabling for CPU core specification. It also features
complete fault protection functions including over voltage,
under voltage, negative voltage, over current and thermal
shutdown. The RT8152C/D is available in WQFN-32L 5x5
small foot print package.
Applications
z IMVP6.5 CPU / Render Core Voltage Regulator
z AVP Step-Down Converter
z Notebook / Desktop Computer / Servers
z Single Phase PWM Controller with Integrated
MOSFET Driver.
z Low-Gain Compensator with CCRCOT Topology
(Constant Current Ripple Constant On Time)
z 7-bit DAC
z 0.8% DAC Accuracy
z 1.5% or 11.5mV System Accuracy
z Fixed VBOOT (For CPU Core Only)
z Differential Remote Voltage Sensing
z G-NAVP Topology (Green-Native AVP)
z Programmable Output Transition Slew Rate Control
z System Thermal Compensated AVP
z Ringing Free Mode at Light Load Condition
z Fast Transient Response
z IMVP6.5 Compatible Power Management States
z Power Good
z Clock Enable Output (For CPU Core Only)
z Thermal Throttling
z Current Monitor Output
z Switching Frequency Up to 1MHz
z OVP, UVP, OCP, OTP, UVLO, NVP
z 32-Lead WQFN Package
z RoHS Compliant and Halogen Free
Ordering Information
RT8152
Package Type
QW : WQFN-32L 5x5 (W-Type)
Operating Temperature Range
G : Green (Halogen Free with Commer-
cial Standard)
VRON Power
C : 1.05V
D : 3.3V
Note :
Richtek Green 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.
DS8152C/D-00 July 2009
www.richtek.com
1
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  Richtek Technology Electronic Components Datasheet  

RT8152C Datasheet

Single-Phase PWM Controller

No Preview Available !

RT8152C pdf
RT8152C/D
Pin Configurations
(TOP VIEW)
32 31 30 29 28 27 26 25
NTC
OCSET
DPRSLPVR
VRON
PGOOD
CLKEN
VCC
SOFT
1
2
3
4
5
6
7
8
GND
24 BOOT
23 UGATE
22 PHASE
21 PGND
20 LGATE
19 PVDD
33 18 GND
17 TON
9 10 11 12 13 14 15 16
WQFN-32L 5x5
Typical Application Circuit
+5V
PWRGD
CLKEN
VRTT
VCC
VCCP
+3.3V
R14
NTC2
R1
C1
RT8152C/D
7 VCC
TON 17 R2
VIN
5V to 25V
R3
C3
C5
C2
VID0
VID1
VID2
VID3
VID4
VID5
VID6
DPRSLPVR
VRON
19 PVDD
31 VID0
30 VID1
29 VID2
28 VID3
27 VID4
26 VID5
25 VID6
3 DPRSLPVR
4 VRON
5 PGOOD
6 CLKEN
32 VRTT
R9 R10 R11
R15
1 NTC
R16 2 OCSET
R17
BOOT 24
UGATE 23
PHASE 22
LGATE 20
PGND 21
ISEN 16
ISEN_N 15
CMSET 11
VSEN 12
FB 13
COMP 14
RGND 9
SOFT 8
R4 C4
Q1
R5
R8 Q2
L1
R6 D1 R7 C7
C6
VOUT
COUT
R13 C9
C12 C13
R18 R19 R20 R21
NTC1
C10 R22
CPU VCC_SNS
VOUT
CPU VSS_SNS
CM 10
18, 33, Exposed Pad (33)
GND
R12
CM
C11
CPU VSS_SNS
Figure 1. CPU Core Voltage Regulator
www.richtek.com
2
DS8152C/D-00 July 2009
Free Datasheet http://www.datasheet4u.com/


Part Number RT8152C
Description Single-Phase PWM Controller
Maker RichTek
Total Page 24 Pages
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