MAX1711 Maxim, MAX1711 Datasheet - Page 2

• Manufacturer Part Number: MAX1711
• Description: High-Speed / Digitally Adjusted Step-Down Controllers for Notebook CPUs
• Manufacturer: Maxim

ABSOLUTE MAXIMUM RATINGS
V+ to GND ..............................................................-0.3V to +30V
V
PGND to GND.....................................................................±0.3V
SHDN, PGOOD to GND ...........................................-0.3V to +6V
OVP, ILIM, FB, FBS, CC, REF, D0–D4,
SKIP to GND (Note 1).................................-0.3V to (V
DL to PGND................................................-0.3V to (V
BST to GND ............................................................-0.3V to +36V
DH to LX .....................................................-0.3V to (BST + 0.3V)
High-Speed, Digitally Adjusted
Step-Down Controllers for Notebook CPUs
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, V
2
Note 1: SKIP may be forced below -0.3V, temporarily exceeding the absolute maximum rating, for the purpose of debugging proto-
CC
Input Voltage Range
DC Output Voltage Accuracy
Load Regulation Error
Remote Sense Voltage Error
Line Regulation Error
FB Input Bias Current
FB Input Resistance (MAX1711)
GNDS Input Bias Current
Soft-Start Ramp Time
On-Time
Minimum Off-Time
Quiescent Supply Current (V
Quiescent Supply Current (V
Quiescent Battery Supply Current
Shutdown Supply Current (V
Shutdown Supply Current (V
Shutdown Battery Supply
Current
Reference Voltage
Reference Load Regulation
REF Sink Current
REF Fault Lockout Voltage
GNDS, TON to GND ..............................-0.3V to (V
, V
_______________________________________________________________________________________
DD
type breadboards using the no-fault test mode. Limit the current drawn to -5mA maximum.
to GND .....................................................-0.3V to +6V
PARAMETER
BATT
= 15V, V
CC
DD
CC
DD
)
)
)
)
CC
Battery voltage, V+
V
V
load regulation error
I
FB-FBS or GNDS-GND = 0 to 25mV
V
FB (MAX1710 only) or FBS
Rising edge of SHDN to full I
V
FB = 2V
(Note 2)
(Note 2)
Measured at V
Measured at V
Measured at V+
SHDN = 0
SHDN = 0
SHDN = 0, measured at V+ = 28V, V
V
I
REF in regulation
Falling edge, hysteresis = 40mV
LOAD
REF
CC,
BATT
CC
BATT
CC
= V
= 4.5V to 5.5V, V
= 4.5V to 5.5V, no external REF load
= 0 to 50µA
V
DD
= 0 to 7A
= 24V,
DD
= 4.5V to 28V, includes
= 5V, SKIP = GND, T
CC
DD
TON = GND (550kHz)
TON = REF (400kHz)
TON = open (300kHz)
TON = V
CC
CC
DD
, FB forced above the regulation point
, FB forced above the regulation point
+ 0.3V)
+ 0.3V)
+ 0.3V)
BATT
CONDITIONS
CC
(200kHz)
= 4.5V to 28V
LIM
A
DAC codes from 1.3V to 2V
DAC codes from 0.925V
to 1.275V
= 0°C to +85°C, unless otherwise noted.)
LX to BST..................................................................-6V to +0.3V
REF Short Circuit to GND ...........................................Continuous
Continuous Power Dissipation (T
Operating Temperature Range ...........................-40°C to +85°C
Junction Temperature ......................................................+150°C
Storage Temperature Range .............................-65°C to +165°C
Lead Temperature (soldering, 10sec) .............................+300°C
24-Pin QSOP (derate 9.5mW/°C above +70°C)..........762mW
CC
= V
DD
= 0 or 5V
1.98
MIN
-1.2
-0.2
130
140
175
260
380
4.5
10
-1
-1
2
A
= +70°C)
TYP
180
160
200
290
425
400
600
1.7
1.6
<1
<1
<1
<1
25
9
3
5
2
MAX
2.02
0.01
240
180
225
320
470
500
950
5.5
1.2
0.2
28
40
1
1
5
5
5
5
UNIT
mV
mV
mV
ms
µA
kΩ
µA
µA
µA
µA
µA
µA
µA
µA
ns
ns
%
V
V
V
V