MAX1977EEI+ Maxim Integrated Products, MAX1977EEI+ Datasheet - Page 9

• Manufacturer Part Number: MAX1977EEI+
• Description: IC CNTRLR PS QUAD HI EFF 28QSOP
• Manufacturer: Maxim Integrated Products

Specifications of MAX1977EEI+

• Applications: Controller, Notebook Computers
• Voltage - Input: 4.5 ~ 24 V
• Number Of Outputs: 4
• Voltage - Output: 3.3V, 5V, 2 ~ 5.5 V
• Operating Temperature: 0°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 28-QSOP
• Output Voltage: 3.3 V, 2 V to 5.5 V
• Input Voltage: 6 V to 24 V
• Mounting Style: SMD/SMT
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Case: SSOP
• Dc: 06+
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

(Circuit of Figure 1 and Figure 2, no load on LDO5, LDO3, OUT3, OUT5, and REF, V+ = 12V, ON3 = ON5 = V
R
CS
400
360
320
280
240
200
160
120
500
450
400
350
300
250
200
150
100
80
40
50
600
550
500
450
400
350
300
250
200
150
100
0
0
= 7mΩ, V
50
0
FREQUENCY vs. LOAD CURRENT (MAX1777)
FREQUENCY vs. LOAD CURRENT (MAX1977)
FREQUENCY vs. LOAD CURRENT (MAX1977)
0.001
0.001
0.001
PWM MODE
PWM MODE
ULTRASONIC MODE
PWM MODE
Supply Controllers for Notebook Computers
ULTRASONIC MODE
3.3V OUTPUT SWITCHING
3.3V OUTPUT SWITCHING
0.01
5V OUTPUT SWITCHING
0.01
ILIM
0.01
High-Efficiency, Quad Output, Main Power-
IDLE MODE
LOAD CURRENT (A)
LOAD CURRENT (A)
LOAD CURRENT (A)
_ = 0.5V, T
_______________________________________________________________________________________
0.1
0.1
0.1
IDLE MODE
PFM MODE
V
A
IN
= +25°C, unless otherwise noted.)
= 7V
1
1
1
V
V
IN
IN
= 7V
= 24V
10
10
10
5.15
5.14
5.13
5.12
5.11
5.10
5.09
5.08
5.07
5.06
5.05
250
225
200
175
150
125
100
75
50
25
600
550
500
450
400
350
300
250
200
150
100
Typical Operating Characteristics (continued)
0
50
0
0.001
FREQUENCY vs. LOAD CURRENT (MAX1777)
0.001
FREQUENCY vs. LOAD CURRENT (MAX1977)
0.001
ULTRASONIC MODE
FORCED PWM
PWM MODE
IDLE MODE
PWM MODE
ULTRASONIC MODE
OUT5 VOLTAGE REGULATION
ULTRASONIC MODE
3.3V OUTPUT SWITCHING
0.01
5V OUTPUT SWITCHING
0.01
0.01
vs. LOAD CURRENT
LOAD CURRENT (A)
LOAD CURRENT (A)
LOAD CURRENT (A)
0.1
PFM MODE
0.1
V
0.1
IN
= 7V
PFM MODE
1
1
1
V
IN
= 24V
10
10
10
3.390
3.385
3.380
3.375
3.370
3.365
3.360
3.355
3.350
3.345
3.340
3.335
3.330
400
360
320
280
240
200
160
120
500
450
400
350
300
250
200
150
100
80
40
50
0
0
FREQUENCY vs. LOAD CURRENT (MAX1777)
FREQUENCY vs. LOAD CURRENT (MAX1977)
0.001
0.001
0.001
ULTRASONIC
FORCED PWM
PWM MODE
PWM MODE
IDLE MODE
ULTRASONIC MODE
ULTRASONIC MODE
OUT3 VOLTAGE REGULATION
3.3V OUTPUT SWITCHING
0.01
5V OUTPUT SWITCHING
0.01
0.01
vs. LOAD CURRENT
LOAD CURRENT (A)
LOAD CURRENT (A)
LOAD CURRENT (A)
PFM MODE
0.1
0.1
0.1
CC
PFM MODE
, SHDN = V+,
1
1
1
V
V
IN
IN
= 24V
= 24V
10
10
10
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