MAX1544ETL+ Maxim Integrated Products, MAX1544ETL+ Datasheet - Page 2

• Manufacturer Part Number: MAX1544ETL+
• Description: IC QUICK-PWM DUAL-PHASE 40-TQFN
• Manufacturer: Maxim Integrated Products
• Series: Quick-PWM™r

Specifications of MAX1544ETL+

• Applications: Controller, AMD Hammer
• Voltage - Input: 2 ~ 28 V
• Number Of Outputs: 1
• Voltage - Output: 0.68 ~ 1.55 V
• Operating Temperature: -40°C ~ 100°C
• Mounting Type: Surface Mount
• Package / Case: 40-TQFN Exposed Pad
• Output Voltage: 0.675 V to 1.55 V
• Output Current: 40 A
• Input Voltage: 4 V to 28 V
• Mounting Style: SMD/SMT
• Maximum Operating Temperature: + 100 C
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

ABSOLUTE MAXIMUM RATINGS
V+ to GND ..............................................................-0.3V to +30V
V
V
SKIP, SUS, D0–D4 to GND.......................................-0.3V to +6V
ILIM, FB, OFS, CCV, CCI, REF, OAIN+,
CMP, CSP, CMN, CSN, GNDS to GND ......-0.3V to (V
TON, TIME, VROK, S0–S1, OVP to GND ....-0.3V to (V
SHDN to GND (Note 1)...........................................-0.3V to +18V
DLM, DLS to PGND ....................................-0.3V to (V
BSTM, BSTS to GND ..............................................-0.3V to +36V
DHM to LXM ...........................................-0.3V to (V
Dual-Phase, Quick-PWM Controller for
AMD Hammer CPU Core Power Supplies
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+ = 15V, V
1.3V, OFS = SUS = GNDS = D0–D4 = GND; T
2
Note 1: SHDN may be forced to 12V for the purpose of debugging prototype boards using the no-fault test mode, which disables
PWM CONTROLLER
Input Voltage Range
DC Output Voltage Accuracy
(Note 2)
Line Regulation Error
Input Bias Current
OFS Input Range
OFS Gain
GNDS Input Range
GNDS Gain
TIME Frequency Accuracy
CC
DD
OAIN- to GND.........................................-0.3V to (V
_______________________________________________________________________________________
to GND ..............................................................-0.3V to +6V
to PGND............................................................-0.3V to +6V
fault protection and overlapping operation.
PARAMETER
CC
= V
I
SYMBOL
FB
DD
A
A
f
I
, I
GNDS
TIME
OFS
OFS
= V
GNDS
SHDN
A
= 0°C to +85°C, unless otherwise specified. Typical values are at T
BSTM
Battery voltage, V+
V
V+ = 4.5V to 28V,
includes load
regulation error
V
FB, GNDS
OFS
∆V
∆V
∆V
∆V
∆V
1000kHz nominal, R
500kHz nominal, R
250kHz nominal, R
Shutdown, R
= V
CC
CC
CC
CC
CC
DD
OUT
OFS
OUT
OFS
OUT
, V
TON
= 4.5V to 5.5V, V+ = 4.5V to 28V
+ 0.3V)
+ 0.3V)
+ 0.3V)
+ 0.3V)
+ 0.3V)
/∆V
/∆V
/∆V
DD
= V
= V
= V
OFS;
OFS;
GNDS
OFS,
OFS
SKIP
TIME
-V
CONDITIONS
V
REF,
OFS
= V
= 30kΩ
LXM to BSTM............................................................-6V to +0.3V
DHS to LXS..............................................-0.3V to (V
LXS to BSTS .............................................................-6V to +0.3V
GND to PGND .......................................................-0.3V to +0.3V
REF Short-Circuit Duration .........................................Continuous
Continuous Power Dissipation (T
Operating Temperature Range .........................-40°C to +100°C
Junction Temperature ......................................................+150°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
TIME
TIME
TIME
S0
V
40-Pin 6mm
(derate 23.2mW/°C above +70°C) ...............................1.860W
= 0 to 1V
DAC codes ≥ 1V
DAC codes from
0.60V to 1V
OFS
= 30kΩ
= 60kΩ
= V
= 15kΩ
= 1V to 2V
S1
= V
✕
OVP
6mm Thin QFN
= 5V, V
FB
-0.129
-0.129
MIN
0.97
-0.1
900
460
225
-10
-15
-20
4.5
-2
4
0
= V
A
CMP
= +70°C)
-0.125
-0.125
1000
TYP
0.99
500
250
125
= V
5
CMN
A
-0.117
-0.117
+200
= V
MAX
1100
+0.1
1.01
+10
+15
540
275
= +25°C.)
5.5
+2
28
2
CSP
BSTS
= V
UNITS
+ 0.3V)
kHz
mV
mV
V/V
mV
V/V
µA
CSN
V
V
=