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MAX8896EREE+T

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P17
MAX8896
Dual PWM Step-Down Converter in a 2mm x
2mm Package for WCDMA PA and RF Power
_______________________________________________________________________________________ 7
10µs/div
OUT1 LOAD TRANSIENT RESPONSE
I
OUT
200mA/div
100mV/div
(AC-COUPLED)
MAX8896 toc16
V
PA
500mA
0mA
10µs/div
OUT1 REFIN TRANSIENT RESPONSE
V
REFIN
500mV/div
500mV/div
1A/div
MAX8896 toc17
V
PA
I
L1
0.72V
0.2V
1.8V
0.5V
2.5Ω LOAD
10µs/div
OUT1 REFIN TRANSIENT RESPONSE
WITH BYPASS EVENT
V
REFIN
1V/div
1V/div
1A/div
MAX8896 toc18
V
PA
I
L1
3.3V
0.6V
1.8V
0
30
20
10
40
50
60
70
80
90
100
0 50 100 150 200
OUT2 EFFICIENCY
vs. LOAD CURRENT
MAX8896 toc19
LOAD CURRENT (mA)
EFFICIENCY (%)
V
CC
= 4.2V
V
CC
= 3.6V
V
CC
= 3.2V
20µs/div
OUT1 LINE TRANSIENT RESPONSE
V
IN
500mV/div
10mV/div
(AC-COUPLED)
200mA/div
MAX8896 toc15
V
PA
I
L1
50mA LOAD
4.0V
3.5V
Typical Operating Characteristics (continued)
(V
CC
= V
IN1
= V
IN2
= 3.6V, V
REFIN
= 0.72V, circuit of Figure 3, T
A
= +25°C, unless otherwise noted.)
3.04
3.05
3.06
3.07
3.08
3.09
3.10
3.11
3.12
0 50 100 150 200
*OUT2 IN DROPOUT
OUT2 VOLTAGE
vs. LOAD CURRENT
MAX8896 toc20
LOAD CURRENT (mA)
OUTPUT VOLTAGE (V)
V
CC
= 3.6V
V
CC
= 3.2V*
V
CC
= 4.2V
10µs/div
OUT2 LOAD TRANSIENT RESPONSE
100mA/div
MAX8896 toc25
I
OUT2
V
OUT2
100mV/div
(AC-COUPLED)
150mA
0mA
0
0.06
0.04
0.02
0.08
0.10
0.12
0.14
0.16
0.18
0.20
0 50 100 150 200
OUT2 DROPOUT VOLTAGE
vs. LOAD CURRENT
MAX8896 toc26
LOAD CURRENT (mA)
DROPOUT VOLTAGE (V)
V
IN
= 2.7V
R
L
= 0.3Ω
MAX8896
Dual PWM Step-Down Converter in a 2mm x
2mm Package for WCDMA PA and RF Power
8 _______________________________________________________________________________________
200ns/div
OUT2 HEAVY-LOAD SWITCHING
WAVEFORMS
V
LX2
10mV/div
(AC-COUPLED)
5V/div
200mA/div
MAX8896 toc22
V
OUT2
I
L2
200mA LOAD
10µs/div
OUT2 STARTUP WAVEFORM
V
OUT2
2V/div
200mA/div
MAX8896 toc23
I
L2
V
RFEN_
5V/div
Typical Operating Characteristics (continued)
(V
CC
= V
IN1
= V
IN2
= 3.6V, V
REFIN
= 0.72V, circuit of Figure 3, T
A
= +25°C, unless otherwise noted.)
20µs/div
OUT2 LINE TRANSIENT RESPONSE
V
IN
500mV/div
200mA/div
MAX8896 toc24
V
OUT2
I
L2
50mV/div
(AC-COUPLED)
4.0V
3.5V
20mA LOAD
200ns/div
OUT2 LIGHT-LOAD SWITCHING
WAVEFORMS
V
LX2
10mV/div
(AC-COUPLED)
5V/div
200mA/div
MAX8896 toc21
V
OUT2
I
L2
20mA LOAD
MAX8896
2.76
2.78
2.77
2.80
2.79
2.81
2.82
0 10050 150 250200
LDO OUTPUT VOLTAGE
vs. LOAD CURRENT
MAX8896 toc27
LOAD CURRENT (mA)
OUTPUT VOLTAGE (V)
0
0.06
0.04
0.02
0.08
0.10
0.12
0.14
0.16
0.18
0.20
0 50 100 150 200
LDO DROPOUT VOLTAGE
vs. LOAD CURRENT
MAX8896 toc28
LOAD CURRENT (mA)
DROPOUT VOLTAGE (V)
V
OUT2
= 2.7V
4µs/div
LDO LOAD TRANSIENT RESPONSE
50mA/div
MAX8896 toc29
V
LDO
I
LDO
20mV/div
(AC-COUPLED)
80mA
10mA
V
RFEN1
V
OUT2
V
LDO
200mA LOAD ON LDO
400µs/div
LDO STARTUP WAVEFORM
MAX8896 toc30
2V/div
2V/div
2V/div
400µs/div
LDO OUTPUT NOISE
(OUT1, OUT2, AND LDO ENABLED)
MAX8896 toc31
V
LDO
30mA LOAD
10µV/div
LDO OUTPUT-NOISE SPECTRAL
DENSITY vs. FREQUENCY
(OUT1, OUT2, AND LDO ENABLED)
MAX8896 toc32
FREQUENCY (kHz)
1,0001001010.1
10E+0
100E+0
1E+3
10E+3
1E+0
0.01 10,000
NOISE DENSITY (nV/√Hz)
Typical Operating Characteristics (continued)
(V
CC
= V
IN1
= V
IN2
= 3.6V, V
REFIN
= 0.72V, circuit of Figure 3, T
A
= +25°C, unless otherwise noted.)
Dual PWM Step-Down Converter in a 2mm x
2mm Package for WCDMA PA and RF Power
_______________________________________________________________________________________ 9
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P17

MAX8896EREE+T

Mfr. #:
Buy MAX8896EREE+T
Manufacturer:
Maxim Integrated
Description:
Switching Voltage Regulators Dual PWM Step-Down Converter
Lifecycle:
New from this manufacturer.
Delivery:
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