max5090aatet Maxim Integrated Products, Inc., max5090aatet Datasheet - Page 6

• Manufacturer Part Number: max5090aatet
• Description: Max5090, Max5090a, Max5090b, Max5090c 2a, 76v, High-efficiency Maxpower Step-down Dc-dc Converters
• Manufacturer: Maxim Integrated Products, Inc.

2A, 76V, High-Efficiency MAXPower Step-Down
DC-DC Converters
(V
Operating Circuit, if applicable.)
6
7.0
6.0
5.0
4.0
3.0
2.0
1.0
IN
6.5
A: V
B: I
_______________________________________________________________________________________
A: SWITCH VOLTAGE, 20V/div (V
B: INDUCTOR CURRENT, 200mA/div (I
= 12V, V
V
OUT
MAX5090AATE
V
5% DROP IN V
PULSED OUTPUT LOAD
OUT
OUT
OUT
16
, 500mA/div, 0.1A TO 1A
LOAD-TRANSIENT RESPONSE
, 200mV/div, AC-COUPLED
= 3.3V
= 3.3V
PEAK SWITCH CURRENT
vs. INPUT VOLTAGE
26
ON/OFF
(MAX5090AATE)
INPUT VOLTAGE (V)
(MAX5090AATE)
LX WAVEFORM
OUT
400µs/div
36
4µs/div
=12V, T
46
IN
56
= 48V)
A
V
OUT
OUT
MAX5090 toc22
= T
MAX5090 toc19
66
= 0)
= 3.3V
J
= -40°C to +125°C, unless otherwise noted. Typical values are at T
76
B
A
B
A
A: SWITCH VOLTAGE (LX PIN), 20mV/div (V
B: INDUCTOR CURRENT, 2A/div (I
A: V
B: V
Typical Operating Characteristics (continued)
V
ON/OFF
OUT
OUT
, 1V/div
= 3.3V
, 2V/div
SYNCHRONIZATION
STARTUP WAVEFORM
LX WAVEFORMS
(MAX5090AATE)
(I
4µs/div
4ms/div
2µs/div
OUT
= 0)
f
SYNC
0
C
= 2A)
SS
= 119kHz
= 0.047µF
MAX5090 toc20
MAX5090 toc23
MAX5090 toc26
IN
= 48V)
B
0
B
A
A
LX
10V/div
SYNC
2V/div
A: SWITCH VOLTAGE, 20V/div (V
B: INDUCTOR CURRENT, 200mA/div (I
A: V
B: V
V
OUT
ON/OFF
OUT
= 3.3V
, 1V/div
, 2V/div
A
STARTUP WAVEFORM
SYNCHRONIZATION
= +25°C. See the Typical
LX WAVEFORMS
(MAX5090AATE)
(I
4µs/div
4ms/div
1µs/div
OUT
= 2A)
IN
f
C
SYNC
= 48V)
SS
0
= 0.047µF
= 75mA)
= 200kHz
MAX5090 toc21
MAX5090 toc24
MAX5090 toc27
A
B
B
LX
10V/div
A
SYNC
2V/div