MAX8772GTL 데이터 시트보기 (PDF) - Maxim Integrated
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MAX8772GTL Datasheet PDF : 47 Pages
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CONFIDENTIAL INFORMATION – RESTRICTED TO INTEL® IMVP-6 LICENSEES
MAX8770/MAX8771/MAX8772 Dual-Phase, Quick-
PWM Controller for IMVP-6+ CPU Core Power Supplies
ABSOLUTE MAXIMUM RATINGS
VCC, VDD to GND .....................................................-0.3V to +6V
D0–D6, CSP_ to GND...............................................-0.3V to +6V
CSN12 (MAX8771) to GND ......................................-0.3V to +6V
CSN_ (MAX8770/MAX8772) to GND........................-0.3V to +6V
PHASEGD (MAX8771) to GND.................................-0.3V to +6V
THRM, VRHOT, CLKEN to GND...............................-0.3V to +6V
TIME, PWRGD, POUT to GND ......................-0.3V to VCC + 0.3V
REF, FB, CCV, CCI to GND ..........................-0.3V to VCC + 0.3V
SHDN to GND (Note 1)...........................................-0.3V to +14V
TON to GND ...........................................................-0.3V to +30V
DPRSLPVR, DPRSTP, PSI to GND ...........................-0.3V to +6V
GNDS, PGND_ to GND .........................................-0.3V to +0.3V
DL_ to PGND_...............................................-0.3V to VDD + 0.3V
BST_ to GND ..........................................................-0.3V to +36V
LX_ to BST_ ..............................................................-6V to +0.3V
BST_ to VDD...........................................................-0.3V to +30V
DH_ to LX_ ..................................................-0.3V to VBST_ +0.3V
REF Short Circuit to GND ...........................................Continuous
Continuous Power Dissipation
40-Pin 6mm x 6mm Thin QFN
(derate 23.2mW/°C above +70°C) .............................2051mW
Operating Temperature Range .........................-40°C to +105°C
Junction Temperature ......................................................+150°C
Storage Temperature Range .............................-65°C to +165°C
Lead Temperature (soldering, 10s) .................................+300°C
Note 1: SHDN may be forced to 12V for the purpose of debugging prototype boards using the no-fault test mode, which disables
fault protection and disables overlapping operation.
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS
(Circuit of Figure 1. VDD = VCC = VSHDN = VPSI = VDPRSTP = 5V, DPRSLPVR = GNDS = PGND_ = GND, VFB = VCCI = VCSP_ = VCSN_
= 1.200V, D0–D6 set for 1.20V (D0–D6 = 0001100). TA = 0°C to +85°C, unless otherwise specified. Typical values are at TA = +25°C.)
PARAMETER
PWM CONTROLLER
Input Voltage Range
DC Output-Voltage Accuracy
Boot Voltage
GNDS Input Range
GNDS Gain
GNDS Input Bias Current
FB Input Bias Current
On-Time Accuracy (Note 3)
TON Shutdown Input Current
Minimum FB and CCI Voltages
for Pseudo-Fixed-Frequency
Operation
Minimum Off-Time
SYMBOL
VOUT
VBOOT
VGNDS
AGNDS
IGNDS
IFB
tON
tOFF(MIN)
CONDITIONS
VCC, VDD
Includes load-
regulation error
(Note 2)
DAC codes from
0.8375V to 1.500V
DAC codes from
0.500V to 0.825V
DAC codes below
0.4875V
∆VOUT/∆VGNDS, -200mV ≤ VGNDS ≤ +200mV
CSP_ = CSN_ for both enabled phases
VIN = 12V
VFB = VCCI = 1.2V
RTON = 96.75kΩ
RTON = 200kΩ
RTON = 303.25kΩ
SHDN = 0, VIN = 26V, VCC = VDD = 0 or 5V
Switching frequency is reduced if FB and/or
CCI are less than this value
(Note 3)
MIN TYP MAX UNITS
4.5
5.5
V
-0.4
+0.4
%
-4
+4
mV
-10
+10
1.19 1.20 1.21
V
-200
+200 mV
0.95 1.00 1.05
V/V
-25
-15
+2
µA
-2
+2
µA
142
167
192
300
333
366
ns
425
500
575
0.01
0.1
µA
0.2 0.25
V
300
375
ns
2 _______________________________________________________________________________________
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