MAX1570 View Datasheet(PDF) - Maxim Integrated
Part Name
Description
Manufacturer
MAX1570 Datasheet PDF : 11 Pages
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White LED Current Regulator with 1x/1.5x
High-Efficiency Charge Pump
Table 1. Enable Input Modes
EN_ INPUT LOGIC LEVELS
EN1 = 0, EN2 = 0
EN1 = 0, EN2 = 1
EN1 = 1, EN2 = 0
EN1 = 1, EN2 = 1
MODE
Shutdown mode
On, VSET = 200mV, LED1 threshold = 200mV
On, VSET = 400mV, LED1 threshold = 300mV
On, VSET = 600mV, LED1 threshold = 400mV
LED CURRENT
0
1/3
2/3
Full
Table 2. Capacitor Selection
OUTPUT
CIN
C1
C2
(mA)
(µF)
(µF)
(µF)
40
1
0.22
0.22
80
1
0.47
0.47
150
1
1.0
1.0
COUT
(µF)
4.7
4.7
4.7
Table 3. Capacitor Manufacturers
COMPONENT NAME
CIN
COUT
C1 and C2
VALUE
(µF)
1
4.7
1
0.47
0.22
MANUFACTURER
Taiyo Yuden
Taiyo Yuden
Taiyo Yuden
Taiyo Yuden
Taiyo Yuden
PART NO.
DESCRIPTION
JMK107BJ105MA
JMK212BJ475MG
JMK107BJ105MA
LMK107BJ474MA
LMK107BJ224KA
1µF ±20%, 6.3V X5R ceramic capacitor (0603)
4.7µF ±20%, 6.3V X5R ceramic capacitor (0805)
1µF ±20%, 6.3V X5R ceramic capacitor (0603)
0.47µF ±20%, 10V X5R ceramic capacitor (0603)
0.22µF ±10%, 10V X7R ceramic capacitor (0603)
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