MAX1626ESA Maxim Integrated Products, MAX1626ESA Datasheet - Page 4

• Manufacturer Part Number: MAX1626ESA
• Description: IC DC/DC CTRLR STEP-DWN HE 8SOIC
• Manufacturer: Maxim Integrated Products
• Type: Step-Down (Buck)r

Specifications of MAX1626ESA

• Internal Switch(s): No
• Synchronous Rectifier: No
• Number Of Outputs: 1
• Voltage - Output: 3.3V, 5V
• Current - Output: 3A
• Frequency - Switching: Up to 300kHz
• Voltage - Input: 3 ~ 16.5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 8-SOIC (3.9mm Width)
• Power - Output: 471mW
• Output Voltage: 3.3 V, 5 V
• Output Current: 3 A
• Input Voltage: 3 V to 16.5 V
• Mounting Style: SMD/SMT
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: Q1146982E

5V/3.3V or Adjustable, 100% Duty-Cycle,
High-Efficiency, Step-Down DC-DC Controllers
(Circuit of Figure 1, T
4
____________________________Typical Operating Characteristics (continued)
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
_______________________________________________________________________________________
0
-60 -40
APPLICATION CIRCUIT
SHUTDOWN CURRENT:
A: V+ = +15V
B: V+ = +10V
C: V+ = +4V
MAX1626 SHUTDOWN
CURRENT:
D: V+ = +16V
E: V+ = +4V
MAX1626 SHUTDOWN CURRENT
-20 0 20 40 60 80 100 120 140
vs. TEMPERATURE
45
40
35
30
20
15
10
50
25
TEMPERATURE (°C)
5
0
72
60
70
68
66
64
62
-60 -40 -20
-60 -40
A
= +25°C, unless otherwise noted.)
C
3/5 = 0V
OUT = 50kHz, 0.3Vp-p
V+ = +4V
EXT
V+ = +16V
V+ = +10V
EXT RISE AND FALL TIMES
-20 0 20 40 60 80 100 120 140
= 1nF
V+ QUIESCENT CURRENT
vs. TEMPERATURE
vs. TEMPERATURE
0
TEMPERATURE (°C)
TEMPERATURE (°C)
t
20
MAX1626
FALL
t
RISE
40 60
, V+ = +5V
3/5 = 0V
OUT FORCED TO 3.4V
B
C
, t
D
A
E
,
FALL
3.3V
t
RISE
, V+ = +15V
80
DC
, V+ = +5V
100 120
10
12
8
6
4
2
0
140
0
3/5 = GND
MAX1626 EXT OFF TIME
1
vs. OUTPUT VOLTAGE
OUTPUT VOLTAGE (V)
3/5 = V+
2
3
115
110
105
100
400
350
300
250
200
150
100
95
90
85
50
0
V+ = +5V
4
-60 -40 -20 0 20 40 60 80 100 120 140
0
OUT = 0V
CS TRIP LEVEL vs. TEMPERATURE
t
RISE
5
EXT RISE AND FALL TIMES
, V+ = +5V
TEMPERATURE (°C)
vs. CAPACITANCE
CAPACITANCE (pF)
t
FALL
10
12
2000
8
6
4
2
0
, V+ = +5V
t
0
RISE
t
FALL
, V+ = +15V
0.2
, V+ = +15V
MAX1627 EXT OFF TIME
vs. FB PIN VOLTAGE
0.4
FB PIN VOLTAGE (V)
4000
0.6
0.8
1.0
V+ = +5V
1.2
1.4