MAX629ESA Maxim Integrated Products, MAX629ESA Datasheet - Page 3

• Manufacturer Part Number: MAX629ESA
• Description: IC CONV 28V BOOST/INVERT 8-SOIC
• Manufacturer: Maxim Integrated Products
• Type: Step-Up (Boost), Inverting, Flyback, Sepicr

Specifications of MAX629ESA

• Internal Switch(s): Yes
• Synchronous Rectifier: No
• Number Of Outputs: 1
• Voltage - Output: ±28V
• Current - Output: 500mA
• Frequency - Switching: 300kHz
• Voltage - Input: 2.7 ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 8-SOIC (3.9mm Width)
• Power - Output: 471mW
• Output Voltage: 28 V
• Input Voltage: 2.7 V to 5.5 V
• Supply Current: 80 uA
• Switching Frequency: 300 KHz
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

ELECTRICAL CHARACTERISTICS (continued)
(V
Note 1: Specifications to -40°C are guaranteed by design and not production tested.
Note 2: The IC itself requires a supply voltage between +2.7V and +5.5V; however, the voltage that supplies power to the inductor
Note 3: For reference currents less than 10µA, a 0.1µF reference-bypass capacitor is adequate.
(SHDN = V
__________________________________________Typical Operating Characteristics
REF Load Regulation
Line Regulation
Load Regulation
Thermal Shutdown Threshold
CC
100
100
95
90
85
80
75
70
65
60
95
90
85
80
75
70
65
60
55
50
= +5V, C
0.1
0.1
can vary from 0.8V to 28V, depending on circuit operating conditions.
V
A: V
B: V
C: V
CC
PARAMETER
OUT
EFFICIENCY vs. LOAD CURRENT
EFFICIENCY vs. LOAD CURRENT
IN
IN
IN
REF
, C
= 24V
= 12V, ISET = V
= 12V, ISET = GND
= 5V, ISET = V
REF
= 0.1µF, T
LOAD CURRENT (mA)
LOAD CURRENT (mA)
A: V
B: V
C: V
D: V
1
(V
1
(V
_______________________________________________________________________________________
= 0.1µF, T
OUT
OUT
IN
IN
IN
IN
= 12V, ISET = V
= 12V, ISET = GND
= 5V, ISET = V
= 3V, ISET = V
D: V
E: V
F: V
CC
CC
= +24V)
= -18V)
IN
IN
IN
= 3V, ISET = V
= 3V, ISET = GND
= 5V, ISET = GND
A
10
10
= -40°C to +85°C, unless otherwise noted. Typical values are at T
A
CC
CC
= +25°C, unless otherwise noted.)
CC
Boost or Inverting DC-DC Converter
E, F
or GND
or GND
D
D
CC
B
C
I
Circuit of Figure 2, V
I
Circuit of Figure 2, V
I
Die temperature
C
REF
LOAD
LOAD
B
A
A
100
100
= 0µA to 100µA, C
= 5mA
= 0mA to 5mA
28V, Low-Power, High-Voltage,
100
100
95
90
85
80
75
70
65
60
95
90
85
80
75
70
65
60
55
50
0.1
0.1
CONDITIONS
EFFICIENCY vs. LOAD CURRENT
EFFICIENCY vs. LOAD CURRENT
OUT
OUT
REF
= 24V, V
= 24V, V
LOAD CURRENT (mA)
LOAD CURRENT (mA)
1
(V
1
(V
= 0.47µF (Note 3)
OUT
OUT
A = V
B = V
C = V
D = V
= +12V)
= -12V)
IN
IN
IN
IN
CC
CC
V
ISET = V
A: V
B: V
C: V
= 5V, ISET = V
= 5V, ISET = GND
= 3V, ISET = V
= 3V, ISET = GND
OUT
10
10
= 3V to 5.5V,
= 5V,
IN
IN
IN
A
B
C
= 12V,
= 9V
= 5V
= 3V
CC
or GND
B, C
CC
CC
A
D
100
100
MIN
250
200
150
100
300
50
90
80
70
60
50
40
30
20
10
0
MAXIMUM LOAD CURRENT vs. INPUT VOLTAGE
0
A
= +25°C.) (Note 1)
0
0
INPUT VOLTAGE (V
A: V
B: V
C: V
D: V
ISET = V
ISET = GND
ISET = V
ISET = GND
MAXIMUM LOAD CURRENT vs.
OUT
OUT
OUT
OUT
TYP
0.15
150
0.2
10
= 12V,
= 12V,
=24V,
= 24V,
4
4
CC
CC
(V
INPUT VOLTAGE (V)
INPUT VOLTAGE (V)
OUT
C
8
8
= -18V, -12V)
A: V
B: V
C: V
D: V
MAX
OUT
OUT
OUT
OUT
OUT
A
B
25
A
12
= -12V, ISET = V
= -18V, ISET = V
= -12V, ISET = GND
= -18V, ISET = GND
12
= +24V, +12V)
B
D
16
16
UNITS
%/V
mV
°C
%
CC
CC
C
D
20
20
3