MAX15034 Datasheet, PDF (5/25 Pages) Maxim Integrated Products – Configurable, Single-/Dual-Output, Synchronous Buck Controller for High-Current Applications

Configurable, Single-/Dual-Output, Synchronous
Buck Controller for High-Current Applications
Typical Operating Characteristics
(Circuit of Figure 6, T_A = +25°C, unless otherwise noted. V_IN = 12V, V_OUT1 = 0.8V, V_OUT2 = 1.3V, f_SW = 500kHz per phase.)
10,000
OSCILLATOR FREQUENCY vs. R_T
C_{DH_} = C_{DL_} = 0
1000
100
10
0 100 200 300 400 500 600 700 800 900 1000
R_T (kΩ)
SUPPLY CURRENT
vs. TEMPERATURE AND FREQUENCY
(V_IN = 5V)
16
C_{DH_} = C_{DL_} = 0
f_SW = 1MHz
14
12
f_SW = 500kHz
10
8
6
f_SW = 250kHz
f_SW = 125kHz
4
2
0
-40 -25 -10 5 20 35 50 65 80 95 110 125
TEMPERATURE (°C)
SUPPLY CURRENT
vs. TEMPERATURE AND FREQUENCY
(V_IN = 12V)
16
C_{DH_} = C_{DL_} = 0
f_SW = 1MHz
14
12
f_SW = 500kHz
10
8
6
f_SW = 250kHz
f_SW = 125kHz
4
2
0
-40 -25 -10 5 20 35 50 65 80 95 110 125
TEMPERATURE (°C)
SUPPLY CURRENT
vs. TEMPERATURE AND FREQUENCY
(V_IN = 24V)
16
C_{DH_} = C_{DL_} = 0
f_SW = 1MHz
14
12
f_SW = 500kHz
10
8
6
f_SW = 250kHz
f_SW = 125kHz
4
2
0
-40 -25 -10 5 20 35 50 65 80 95 110 125
TEMPERATURE (°C)
SUPPLY CURRENT
vs. OSCILLATOR FREQUENCY
14
C_{DH_} = C_{DL_} = 0
13
12
11
10 ^{VIN = 24V}
V_IN = 12V
9
8
V_IN = 5V
7
6
200 400 600 800 1000 1200 1400 1600 1800 2000
FREQUENCY (kHz)
SUPPLY CURRENT
vs. DRIVER LOAD CAPACITANCE
100
C_LOAD = C_{DH_} = C_{DL_}
90
80
70
60
50
40
30
20
10
0
0 5 10 15 20 25 30
C_LOAD (nF)
REG LOAD REGULATION
5.10
V_IN = 24V
5.05
REG LINE REGULATION
5.10
5.08
I_REG = 0
5.06
OUTPUT LOAD-TRANSIENT RESPONSE
MAX15034 toc07
20A
IOUT
10A/div
5.04
5.00
V_IN = 12V
5.02
V_IN = 5.5V
5.00
4.95
4.98
I_REG = 60mA
VOUT
100mV/div
AC-COUPLED
4.90
0
10 20 30 40 50 60 70 80 90 100
I_REG (mA)
4.96
5 7 9 11 13 15 17 19 21 23
V_IN (V)
2ms/div
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