Sony NWZ-S515 Service Manual page 32

NWZ-S515/S516/S615F/S616F/S618F
IC903 MAX1557ETB
IN 1
BIAS
2
GND
CURRENT
SENSE
REFERENCE
1.25V
SLOPE
COMPARATOR
SS 3
ERROR
AMPLIFIER
OUT 4
XSHDN
5
32
0.675V
CURRENT-LIMIT
COMPARATOR
PWM
AUTO SKIP
PWM
CONTROL
COMPARATOR
CLOCK
1MHZ
SKIP-OVER
ENTER SKIP/
SR OFF
11
OUTPUT
10 D1
VOLTAGE
SELECTOR
SHORT-CIRCUIT
PROTECTION
9 INP
DRIVER
8 LX
7 PGND
ZERO-CROSS
DETECT
6
D2