MAX1584ETJ+T Maxim Integrated Products, MAX1584ETJ+T Datasheet - Page 7

• Manufacturer Part Number: MAX1584ETJ+T
• Description: IC DGTL CAM PWR-SUP 5CH 32TQFN
• Manufacturer: Maxim Integrated Products

Specifications of MAX1584ETJ+T

• Applications: Controller, Digital Camera
• Voltage - Input: 0.7 ~ 5.5 V
• Number Of Outputs: 5
• Voltage - Output: 1.25 ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 32-TQFN Exposed Pad
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

ELECTRICAL CHARACTERISTICS (continued)
(V
(Circuit of Figure 1, T
Note 5: The step-up current limit in startup refers to the LXSU switch current limit, not an output current limit.
Note 6: The idle mode current threshold is the transition point between fixed-frequency PWM operation and idle mode operation
Note 7: Operation in dropout (100% duty cycle) can only be maintained for 100,000 OSC cycles before the output is considered
Note 8: Specifications to -40°C are guaranteed by design, not production tested.
PVSU
100
100
90
80
70
60
50
40
30
20
10
95
90
85
80
75
70
0
3.0
1
= V
SU = 5V, 300mA
SD = 1.5V, 250mA
SU + AUX3 = 3.3V, 300mA
AUX1 = 15V, 40mA
AUX2 = -7.5V, 40mA
(where switching rate varies with load). The specification is given in terms of inductor current. In terms of output current, the
idle mode transition varies with input-output voltage ratio and inductor value. For the step-up, the transition output current is
approximately 1/3 the inductor current when stepping from 2V to 3.3V. For the step-down, the transition current in terms of
output current is approximately 3/4 the inductor current when stepping down from 3.3V to 1.8V.
faulted, triggering global shutdown.
EFFICIENCY vs. INPUT VOLTAGE
PV
V
V
V
V
IN
IN
IN
IN
= V
STEP-UP EFFICIENCY
= 4.5V
= 4.2V
= 3.8V
= 3.0V
vs. LOAD CURRENT
LOAD CURRENT (mA)
INPUT VOLTAGE (V)
PVSD
3.5
10
_______________________________________________________________________________________
A
= V
= +25°C, unless otherwise noted.)
INDL2
100
4.0
= 3.6V, T
V
5-Channel Slim DSC Power Supplies
OUT
= 5V
1000
4.5
A
= -40°C to +85°C, unless otherwise noted.) (Note 8)
100
100
90
80
70
60
50
40
30
20
10
90
80
70
60
50
40
30
0
1
1
AUX1 EFFICIENCY vs. LOAD CURRENT
V
V
V
V
IN
IN
IN
IN
STEP-DOWN EFFICIENCY
= 3.0V
= 3.8V
= 4.2V
= 4.5V
PVSD CONNECTED TO BATTERY
V
DOES NOT INCLUDE CURRENT USED
BY THE STEP-UP TO POWER THE IC
vs. LOAD CURRENT
OUT
LOAD CURRENT (mA)
LOAD CURRENT (mA)
10
10
= 1.5V
V
V
V
V
IN
IN
IN
IN
= 4.5V
= 4.2V
= 3.8V
= 3.0V
Typical Operating Characteristics
100
100
V
OUT1
= 15V
1000
1000
100
90
80
70
60
50
40
30
20
10
90
80
70
60
50
40
30
1
1
EFFICIENCY vs. LOAD CURRENT
MAX1585 AUX2 EFFICIENCY
COMBINED BOOST-BUCK
vs. LOAD CURRENT
LOAD CURRENT (mA)
LOAD CURRENT (mA)
10
10
V
V
V
V
IN
IN
IN
IN
= 3.0V
= 3.8V
= 4.2V
= 4.5V
V
V
V
V
IN
IN
IN
IN
= 4.5V
= 4.2V
= 3.8V
= 3.0V
100
100
V
V
V
OUT3
OUTSU
OUT2
= 3.3V
= -7.5V
= 5.0V
1000
1000
7