MAX8667ETEHR+ Maxim Integrated Products, MAX8667ETEHR+ Datasheet - Page 7

• Manufacturer Part Number: MAX8667ETEHR+
• Description: IC DC-DC CONV W/DUAL LDO 16TQFN
• Manufacturer: Maxim Integrated Products
• Type: Step-Down (Buck)r

Specifications of MAX8667ETEHR+

• Internal Switch(s): Yes
• Synchronous Rectifier: Yes
• Number Of Outputs: 4
• Voltage - Output: 1.2V, 1.8V, 2.6V, 2.8V
• Current - Output: 600mA, 1.2A
• Frequency - Switching: 1.5MHz
• Voltage - Input: 2.6 ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 16-TQFN Exposed Pad
• Power - Output: 1.67W
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

(V
IN12
= V
IN34
= 3.6V, circuit of Figure 4, V
1.5MHz Dual Step-Down DC-DC Converters
V
OUT2
V
LX2
I
L2
_______________________________________________________________________________________
500mA LOAD
OUT2 HEAVY-LOAD SWITCHING
with Dual LDOs and Individual Enables
WAVEFORMS
OUT3 NOISE
400ns/div
1ms/div
OUT1
V
I
LOAD
OUT3
= 1.2V, V
MAX8667/88 toc23
MAX8667/88 toc25
Typical Operating Characteristics (continued)
= 100Ω
= 2.80V
OUT2
20mV/div
500mA/div
2V/div
100µV/div
= 1.8V, V
OUT3
= 2.8V, V
70
60
50
40
30
20
10
0
0.01
OUT4
POWER-SUPPLY REJECTION RATIO
0.1
= 2.8V, T
vs. FREQUENCY
FREQUENCY (kHz)
OUT4 NOISE
1
1ms/div
A
= +25°C, unless otherwise noted.)
10
V
C
I
V
I
LOAD
OUT3
OUT3
LOAD
OUT4
MAX8667/88 toc26
100
= 100Ω
= 2.80V
= 4.7µF
= 100Ω
= 3.30V
1000
100µV/div
7