Maxim Integrated MAX8596XETA

Description
The MAX8595X/MAX8596X are high-efficiency, 36V step-up converters designed to drive up to nine white LEDs with constant current for LCD backlighting in handheld devices. The series connection ensures identical LED currents for uniform brightness and minimizes the number of traces to the LEDs. The MAX8595X regulates constant LED current over the entire temperature range, while the MAX8596X features an ambient-temperature derating function to prevent over-driving the LEDs at high temperatures, allowing for higher drive current below 42°C.

Features
Temperature derating function (MAX8596X)
86% efficiency (PLEDS/PIN)
1.7% current-regulation accuracy
Output overvoltage protection
Flexible dimming control (analog, direct-PWM, internal filter)
1MHz PWM switching frequency
0.1μF output capacitor
12mVp-p low input ripple
Soft-start eliminates inrush current
2.6V to 6V input range
0.3μA shutdown current
Pin compatible with MAX1561 and MAX1599
TDFN 3mm x 3mm x 0.8mm package with exposed paddle

Applications
Cell phones and smartphones
PDAs, palmtops, and wireless handhelds
E-books and subnotebooks
White LED display backlighting (up to nine LEDs at 25mA)