MAX8770GTL+T Maxim Integrated Products, MAX8770GTL+T Datasheet - Page 2

• Manufacturer Part Number: MAX8770GTL+T
• Description: IC CTLR PS 2/1PH QUICK PWM 40QFN
• Manufacturer: Maxim Integrated Products

Specifications of MAX8770GTL+T

• Applications: Controller, Intel IMVP-6
• Voltage - Input: 4 ~ 26 V
• Number Of Outputs: 1
• Voltage - Output: 0.125 ~ 1.5 V
• Operating Temperature: -40°C ~ 105°C
• Mounting Type: *
• Package / Case: *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

PWM Controller for IMVP-6+ CPU Core Power Supplies
ABSOLUTE MAXIMUM RATINGS
V
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 V
REF, FB, CCV, CCI to GND ..........................-0.3V to V
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 V
ELECTRICAL CHARACTERISTICS
(Circuit of Figure 1. V
= 1.200V, D0–D6 set for 1.20V (D0–D6 = 0001100). T
CONFIDENTIAL INFORMATION – RESTRICTED TO INTEL
Note 1: SHDN may be forced to 12V for the purpose of debugging prototype boards using the no-fault test mode, which disables
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.
2
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
CC
, V
_______________________________________________________________________________________
DD
fault protection and disables overlapping operation.
PARAMETER
to GND .....................................................-0.3V to +6V
MAX8770/MAX8771/MAX8772 Dual-Phase, Quick-
DD
= V
CC
= V
SHDN
SYMBOL
t
OFF(MIN)
A
V
V
I
V
GNDS
BOOT
GNDS
GNDS
t
I
OUT
ON
FB
= V
PSI
V
Includes load-
regulation error
(Note 2)
∆V
CSP_ = CSN_ for both enabled phases
V
V
SHDN = 0, V
Switching frequency is reduced if FB and/or
CCI are less than this value
(Note 3)
= V
CC
IN
FB
OUT
DPRSTP
= 12V
, V
= V
A
CC
CC
DD
DD
/∆V
= 0°C to +85°C, unless otherwise specified. Typical values are at T
CCI
+ 0.3V
+ 0.3V
+ 0.3V
GNDS
= 5V, DPRSLPVR = GNDS = PGND_ = GND, V
= 1.2V
IN
= 26V, V
, -200mV ≤ V
CONDITIONS
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 V
REF Short Circuit to GND ...........................................Continuous
Continuous Power Dissipation
40-Pin 6mm x 6mm Thin QFN
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
R
R
R
CC
DAC codes from
0.8375V to 1.500V
DAC codes from
0.500V to 0.825V
DAC codes below
0.4875V
(derate 23.2mW/°C above +70°C) .............................2051mW
TON
TON
TON
= V
GNDS
= 96.75kΩ
= 200kΩ
= 303.25kΩ
DD
= 0 or 5V
≤ +200mV
®
IMVP-6 LICENSEES
1.19
-200
0.95
MIN
-0.4
142
300
425
-10
-25
4.5
-4
-2
FB
TYP
1.20
1.00
0.01
167
333
500
300
-15
0.2
= V
CCI
= V
+200
MAX
+0.4
1.21
1.05
0.25
+10
192
366
575
375
5.5
0.1
+4
+2
+2
CSP
A
BST_
= +25°C.)
_ = V
UNITS
+0.3V
mV
mV
V/V
µA
µA
µA
ns
ns
%
V
V
V
CSN
_