MAX16930 Datasheet, PDF (9/29 Pages) Maxim Integrated Products – 2MHz, 36V, Dual Buck with Preboost and 20μA Quiescent Current

MAX16930/MAX16931
2MHz, 36V, Dual Buck with Preboost and
20µA Quiescent Current
(TA = +25°C, unless otherwise noted.)
MINIMUM ON-TIME (BUCK 2)
MAX16930 toc24
IOUT2 = 300mA
200ns/div
V_BAT
5V/div
V_OUT1
1V/div
Typical Operating Characteristics (continued)
COLD CRANK (PREBOOST ON)
MAX16930 toc25
400ms/div
V_BAT
10V/div
V_IN
5V/div
V_BSTON
5V/div
V_OUT1
5V/div
V_PGOOD1
5V/div
V_OUT2
5V/div
V_PGOOD2
5V/div
BOOST ENABLE
MAX16930 toc26
V_BAT
5V/div
2s/div
V_IN
5V/div
V_SNS
1V/div
V_BSTON
5V/div
LX WAVEFORMS
MAX16930 toc27
I_OUT1 = I_OUT2 = 1A
V_LX1
5V/div
V_LX2
5V/div
200ns/div
V_LXBST
5V/div
PREBOOST LOAD REGULATION
9.95
VBAT = 7V
9.90
9.85
9.80
9.75
9.70
9.65
9.60
9.55
9.50
0
1
2
3
4
5
6
I_{OUT_} (A)
SPECTRAL ENERGY DENSITY
vs. FREQUENCY
50
MEASURED ON THE MAX16931ATLS/V+
40
30
20
10
0
-10
300 320 340 360 380 400 320 440 460 480 500
FREQUENCY (kHz)
Maxim Integrated
SPECTRAL ENERGY DENSITY
vs. FREQUENCY
40
35
MEASURED AT V_OUT2 ON
THE MAX16930ATLU/V+
30
25
20
15
10
5
0
-5
-10
800k
960k
1.0M
1.1M
1.2M
FREQUENCY (Hz)
SPECTRAL ENERGY DENSITY
vs. FREQUENCY
35
MEASURED ON THE MAX16930ATLS/V+
30
25
20
15
10
5
0
-5
-10
1.8
2.0
2.2
2.4
2.6
FREQUENCY (MHz)
  9