MAX1523EUT+T Maxim Integrated Products, MAX1523EUT+T Datasheet - Page 12

• Manufacturer Part Number: MAX1523EUT+T
• Description: IC SIMPLE BOOST CNTRLR SOT23-6
• Manufacturer: Maxim Integrated Products
• Type: Step-Up (Boost), Flyback, Sepicr

Specifications of MAX1523EUT+T

• Internal Switch(s): No
• Synchronous Rectifier: No
• Number Of Outputs: 1
• Voltage - Output: 2.5 ~ 100 V
• Frequency - Switching: 1MHz
• Voltage - Input: 2.5 ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: SOT-23-6
• Power - Output: 696mW
• Output Voltage: 2.5 V to 100 V
• Output Current: 0.95 A
• Input Voltage: 2.5 V to 5.5 V
• Supply Current: 25 uA
• Mounting Style: SMD/SMT
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Output: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Simple SOT23 Boost Controllers
Table 1. Design Examples Using CCM
12
V
V
I
R1, R2
Duty Cycle (max)
t
f
I
L
L
P
C
C
ESR
C
V
C
C
C
MOSFET
Qg
I
I
Diode
OUT(MAX)
ON
SWITCHING
PEAK
GATE
DIODE(RMS)
IDEAL
ACTUAL
IN
OUT
LR
RIPPLE(ESR)
OUT(MIN)
OUT
OUT(ACTUAL)
FF
FB
IN
COUT(MIN)
______________________________________________________________________________________
PARAMETER
to C
OUT(MAX)
3.3V ±10%
5V
700mA
274kΩ, 90.9kΩ
45.5%
0.5µs (SET = GND)
691kHz to 909kHz
when I
1.48A
3.73µH
Sumida CR43-3R3
3.3µH, 86mΩ, 1.44A
29mW at I
14µF to 448µF
33µF
23mΩ for stability,
51mΩ for soft-start
Sanyo POSCAP 10TPA33M
33µF, 10V,
60mΩ, 100mΩ max
27mV
81mV
100pF
100pF
10µF, 6.3V ceramic
Fairchild FDC633N
8nC at Vgs = 3V
12nC at Vgs = 5V
7.3mA nonbootstrapped,
10.9mA bootstrapped
0.96A
Nihon EP10QY03, 1A
P-P
P-P
OUT
EXAMPLE 1
at light loads,
at full load
OUT
> 120mA
= 350mA
2.7V to 4.2V
12V
200mA
866kΩ, 100kΩ
78.4%
3µs (SET = V
221kHz to 261kHz
when I
1.06A
33.8µH
Sumida CDR74B-330
33µH, 180mΩ, 0.97A
22mW at I
10µF to 53µF
33µF
74mΩ for stability,
70mΩ for soft-start
AVX TPSD336M020R0200
33µF, 20V,
150mΩ, 200mΩ max
48mV
144mV
100pF
330pF
10µF, 6.3V ceramic
Fairchild FDC633N
9nC at Vgs = 3.6V
2.4mA nonbootstrapped
0.49A
Nihon EP10QY03, 1A
P-P
OUT
P-P
at light loads,
OUT
EXAMPLE 2
at full load
> 35mA
CC
= 100mA
)
1.8V to 3.0V
5V
1.0A
274kΩ, 90.9kΩ
67.3%
3µs (SET = V
152kHz to 224kHz
when I
3.51A
6.83µH
Sumida CDRH125-5R8
5.8µH, 17mΩ, 4.4A
22mW at I
120µF to 640µF
150µF
21mΩ for stability,
21mΩ for soft-start
Sanyo POSCAP 6TPB150M
150µF, 6.3V,
40mΩ, 55mΩ max
42mV
126mV
100pF
220pF
10µF, 6.3V ceramic
Vishay Si3446DV
10nC at Vgs = 5V
2.2mA bootstrapped
1.84A
Nihon EC21QS03L, 2A
P-P
OUT
P-P
at light loads,
OUT
at full load
EXAMPLE 3
> 167mA
CC
= 500mA
)