Datasheet

(V
IN
= 12V, V
ON/OFF
= 12V, T
A
= -40°C to +125°C, unless otherwise noted. Typical values are at T
A
= +25°C. See the Typical Operating
Circuit, if applicable.)
MAX5033BASA LX WAVEFORMS
MAX5033 toc19
4ms/div
B
0
A
A: SWITCH VOLTAGE (LX PIN) 20V/div, V
IN
= 48V
B: INDUCTOR CURRENT, 200mA/div, (I
OUT
= 500mA)
MAX5033BASA LX WAVEFORMS
MAX5033 toc20
4µs/div
B
0
A
0
A: SWITCH VOLTAGE, 20V/div, V
IN
= 48V
B: INDUCTOR CURRENT, 100mA/div (I
OUT
= 30mA)
MAX5033BASA LX WAVEFORMS
MAX5033 toc21
4µs/div
B
A
A: SWITCH VOLTAGE (LX PIN), 20V/div, V
IN
= 48V
B: INDUCTOR CURRENT, 100mA/div (I
OUT
= 0)
0
0
MAX5033BASA STARTUP WAVEFORM
(I
O
= 0)
MAX5033 toc22
1ms/div
B
A
A: V
ON/OFF
, 2V/div
B: V
OUT
, 2V/div
MAX5033BASA STARTUP WAVEFORM
(I
O
= 0.5A)
MAX5033 toc23
1ms/div
B
A
A: V
ON/OFF
, 2V/div
B: V
OUT
, 2V/div
PEAK SWITCH CURRENT LIMIT
vs. INPUT VOLTAGE
MAX5033 toc24
INPUT VOLTAGE (V)
PEAK SWITCH CURRENT LIMIT (A)
56 6646362616
0.8
1.1
1.4
1.7
2.0
0.5
6 76
MAX5033BASA
V
OUT
= 5V
5% DROP IN V
OUT
MAX5033 500mA, 76V, High-Efciency, MAXPower
Step-Down DC-DC Converter
Maxim Integrated │ 7
www.maximintegrated.com
Typical Operating Characteristics (continued)