MAX8631XETI+T Maxim Integrated Products, MAX8631XETI+T Datasheet - Page 8

• Manufacturer Part Number: MAX8631XETI+T
• Description: IC LED DRVR WHITE BCKLGT 28-TQFN
• Manufacturer: Maxim Integrated Products
• Type: Backlight, White LED (Serial Interface)r

Specifications of MAX8631XETI+T

• Constant Current: Yes
• Topology: Linear (LDO), Switched Capacitor (Charge Pump)
• Number Of Outputs: 8
• Internal Driver: Yes
• Type - Primary: Backlight, Flash/Torch
• Type - Secondary: White LED
• Frequency: 1MHz
• Voltage - Supply: 2.7 V ~ 5.5 V
• Voltage - Output: 5V
• Mounting Type: Surface Mount
• Package / Case: 28-TQFN Exposed Pad
• Operating Temperature: -40°C ~ 85°C
• Current - Output / Channel: 200mA
• Internal Switch(s): Yes
• Efficiency: 85%
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

1x/1.5x/2x White LED Charge Pump with Two
LDOs in 4mm x 4mm Thin QFN
Figure 1. Functional Diagram and Application Circuit
8
2.7V TO 5.5V
_______________________________________________________________________________________
INPUT
0.01μF
C8
10μF
C1
6.81kΩ
4.12kΩ
R
R
SETM
SETF
PIN
IN
GND
PGND
REFBP
ENM1
ENM2
ENF
ENLDO
P1
P2
SETM
SETF
ERROR
ERROR
IN
AMP 2
IN
AMP 3
CONTROL AND
REFERENCE
FLASH CONTROL
MAIN CONTROL
0.15V
0.6V
C1P
ERROR
AMP 1
1x/1.5x/2x REGULATING
1μF
C3
C1N
CHARGE PUMP
C2P
+
–
+
–
1μF
C4
C2N
SELMIN
+
–
OVD
GND
+
–
GND
REGULATORS
DROPOUT
1.25V
+
–
LINEAR
LOW-
+
–
+
–
+
–
MAX8631X
MAX8631Y
OUT
LDO1
LDO2
M1
M2
M3
M4
F1
F2
F3
F4
OUTPUT
UP TO 480mA
C7
1μF
C5
10μF
D1
D2
D3
D4
D5
D6
D7
D8
C6
1μF