MAX1765EUE+ Maxim Integrated Products, MAX1765EUE+ Datasheet - Page 8

• Manufacturer Part Number: MAX1765EUE+
• Description: IC DC-DC CONV 800MA LN 16TSSOP
• Manufacturer: Maxim Integrated Products
• Type: Step-Up (Boost)r

Specifications of MAX1765EUE+

• Internal Switch(s): Yes
• Synchronous Rectifier: Yes
• Number Of Outputs: 2
• Voltage - Output: 2.5 ~ 5.5 V
• Current - Output: 800mA
• Frequency - Switching: 1MHz
• Voltage - Input: Adj down to 0.7V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 16-TSSOP Exposed Pad, 16-eTSSOP, 16-HTSSOP
• Power - Output: 1.5W
• Output Voltage: 2.5 V to 5.5 V
• Output Current: 800 mA
• Input Voltage: 0.7 V to 5.5 V
• Supply Current: 100 uA
• Switching Frequency: 1200 MHz
• Mounting Style: SMD/SMT
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

800mA, Low-Noise, Step-Up DC-DC Converter
with 500mA Linear Regulator
(T
8
A
= +25°C, unless otherwise noted.)
-10
-20
-30
-40
-50
-60
-70
-80
_______________________________________________________________________________________
0
B
A
0.1
I = 0mA, V
A: V
B: V
IN
OUT
, 2V/div
LINE TRANSIENT RESPONSE
, 5mV/div, AC-COUPLED
LDO PSRR vs. FREQUENCY
IN
1
= +3V TO +5V, V
(100Hz TO 1MHz)
FREQUENCY (kHz)
(LINEAR)
A
B
C
10
A: 0NA, 5V/div
B: INPUT CURRENT, 100mA/div
C: V
OUT
OUT
= +3.3V
(R
, 1V/div
SOFT-START WAVEFORMS
100
SS
= 500kΩ, C
MAX1765 toc13
2.5ms/div
1000
SS
= 0.1µF)
16
14
12
10
Typical Operating Characteristics (continued)
6
8
4
2
0
B
A
MAX1765 toc15b
0.1
V
A: I
B: V
IN
V
V
IN
OUT
OUT
= +2.4V, V
OUT
= +2.4V
, 500mA/div
= +3.3V
LOAD TRANSIENT RESPONSE
,100mV/div
OUTPUT NOISE SPECTRUM
BOOST FOLLOWED BY LDO
OUT
FREQUENCY (MHz)
= +3.3V, I
50µs/div
1
OUT
= 0 TO 500mA
MAX1765 toc14
10
A
B
C
(I
A: LX, 5V/div
B: INDUCTOR CURRENT, 200mA/div
C: OUTPUT RIPPLE, 50mV/div, AC-COUPLED
HEAVY-LOAD SWITCHING WAVEFORMS
OUT
= 650mA, V
A
B
A
B
C
A: 0NA, 5V/div
B: V
C: INPUT CURRENT, 1A/div
A: V
B: V
OUT
IN
OUT
NO SOFT-START COMPONENTS
, 500mV/div
, 2V/div
LINE TRANSIENT RESPONSE
500ns/div
, 1mV/div, AC-COUPLED
IN
TURN-ON WAVEFORMS
= +2.4V, V
(DC-DC)
100µs/div
OUT
MAX1765 toc16
= 3.3V)
V
V
OUT
IN
MAX1765 toc15a
= +1.4V TO +2.4V
= +3.3V, I = 0mA
MAX1765 toc12