MAX1577YETA+T Maxim Integrated Products, MAX1577YETA+T Datasheet - Page 6

• Manufacturer Part Number: MAX1577YETA+T
• Description: IC LED DRIVR BCKLGT FLASH 8-TDFN
• Manufacturer: Maxim Integrated Products
• Type: Backlight, Flash, Movier

Specifications of MAX1577YETA+T

• Topology: Linear (LDO), PWM, Switched Capacitor (Charge Pump)
• Number Of Outputs: 1
• Internal Driver: Yes
• Type - Primary: Backlight, Flash/Torch
• Type - Secondary: RGB, White LED
• Frequency: 800kHz ~ 1.25MHz
• Voltage - Supply: 2.7 V ~ 5.5 V
• Voltage - Output: 3.4V, 4.6V, 5.1V
• Mounting Type: Surface Mount
• Package / Case: 8-TDFN Exposed Pad
• Operating Temperature: -40°C ~ 85°C
• Current - Output / Channel: 800mA
• Internal Switch(s): Yes
• Efficiency: 92%
• Function: Step Up, Step Down
• Output Voltage: 3.4 V, 4.6 V, 5.1 V
• Output Current: 1200 mA
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

1.2A White LED Regulating Charge Pump for
Camera Flashes and Movie Lights
Figure 1. Functional Diagram
6
_______________________________________________________________________________________
2.7V TO 5.5V
*2.2µF FOR MORE THAN 600mA OUTPUT.
C
4.7µF
IN
GND
IN
EN1
EN2
CONTROL
V
OUT
CP
LDO/CHARGE PUMP
- V
CS
1µF*
MAX1577Y
MAX1577Z
C1
CN
ERROR
AMP
MUX
IMODE/
VMODE
CSVMODE
MAX1577Y
ONLY
1.25V
24mV
CS
OUT
C
10µF
OUT
D1
R
CS