MAX1710 View Datasheet(PDF) - Maxim Integrated
Part Name
Description
Manufacturer
MAX1710 Datasheet PDF : 28 Pages
| |||
High-Speed, Digitally Adjusted
Step-Down Controllers for Notebook CPUs
ABSOLUTE MAXIMUM RATINGS
V+ to GND ..............................................................-0.3V to +30V
VCC, VDD to GND .....................................................-0.3V to +6V
PGND to GND.....................................................................±0.3V
SHDN, PGOOD to GND ...........................................-0.3V to +6V
OVP, ILIM, FB, FBS, CC, REF, D0–D4,
GNDS, TON to GND ..............................-0.3V to (VCC + 0.3V)
SKIP to GND (Note 1).................................-0.3V to (VCC + 0.3V)
DL to PGND................................................-0.3V to (VDD + 0.3V)
BST to GND ............................................................-0.3V to +36V
DH to LX .....................................................-0.3V to (BST + 0.3V)
LX to BST..................................................................-6V to +0.3V
REF Short Circuit to GND ...........................................Continuous
Continuous Power Dissipation (TA = +70°C)
24-Pin QSOP (derate 9.5mW/°C above +70°C)..........762mW
Operating Temperature Range ...........................-40°C to +85°C
Junction Temperature ......................................................+150°C
Storage Temperature Range .............................-65°C to +165°C
Lead Temperature (soldering, 10s) .................................+300°C
Note 1: SKIP may be forced below -0.3V, temporarily exceeding the absolute maximum rating, for the purpose of debugging proto-
type breadboards using the no-fault test mode. Limit the current drawn to -5mA maximum.
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, VBATT = 15V, VCC = VDD = 5V, SKIP = GND, TA = 0°C to +85°C, unless otherwise noted.)
PARAMETER
CONDITIONS
MIN TYP MAX UNIT
Input Voltage Range
Battery voltage, V+
VCC, VDD
2
28
V
4.5
5.5
DC Output Voltage Accuracy
DAC codes from 1.3V to 2V -1
VBATT = 4.5V to 28V, includes
load regulation error
DAC codes from 0.925V
to 1.275V
-1.2
1
%
1.2
Load Regulation Error
Remote-Sense Voltage Error
Line Regulation Error
FB Input Bias Current
ILOAD = 0 to 7A
FB - FBS or GNDS - GND = 0 to 25mV
VCC = 4.5V to 5.5V, VBATT = 4.5V to 28V
FB (MAX1710 only) or FBS
9
mV
3
mV
5
mV
-0.2
0.2
µA
FB Input Resistance
(MAX1711/MAX1712)
130 180
240
kΩ
GNDS Input Bias Current
Soft-Start Ramp Time
On-Time
Rising edge of SHDN to full ILIM
TON = GND (550kHz)
VBATT = 24V, TON = REF (400kHz)
FB = 2V
(Note 2)
TON = open (300kHz)
TON = VCC (200kHz)
Minimum Off-Time
(Note 2)
Quiescent Supply Current (VCC) Measured at VCC, FB forced above the regulation point
Quiescent Supply Current (VDD) Measured at VDD, FB forced above the regulation point
Quiescent Battery Supply Current Measured at V+
Shutdown Supply Current (VCC) SHDN = 0
Shutdown Supply Current (VDD) SHDN = 0
-1
1
µA
1.7
ms
140
160
180
175
200
225
ns
260
290
320
380
425
470
400
500
ns
600
950
µA
<1
5
µA
25
40
µA
<1
5
µA
<1
5
µA
Shutdown Battery Supply
Current
SHDN = 0, measured at V+ = 28V, VCC = VDD = 0 or 5V
<1
5
µA
Reference Voltage
Reference Load Regulation
REF Sink Current
REF Fault Lockout Voltage
VCC = 4.5V to 5.5V, no external REF load
IREF = 0 to 50µA
REF in regulation
Falling edge, hysteresis = 40mV
1.98
2
2.02
V
0.01
V
10
µA
1.6
V
2 _______________________________________________________________________________________
Share Link: 