BD9361GUL Datasheet, PDF (12/27 Pages) Rohm – 6ch Internal Power MOSFET System Switching Regulator + 1ch LDO

BD9361GUL
●Efficiency data (2)
CH5 Step Down 1.2V Io‐Efficiency
100
90
80
70
60
50
40
10
100
Io[mA]
VBAT=5.5V
VBAT=4.2V
VBAT=3.6V
VBAT=2.8V
VBAT=2.5V
1000
Fig11. CH5 1.2V Step-down efficiency－Io
Inductor : 2.2uH (YUDEN: NR3015T)
100
95
90
85
80
75
70
65
60
55
50
2.000
CH6 Backlight (5LED) Io‐Efficiency
3.000
4.000
VBAT [V]
Io=30mA
Io=20mA
Io=10mA
5.000
Fig12. CH6 5 LED efficiency－Input voltage
Inductor : 10uH (YUDEN: NR3015T)
11
9
7
5
2
IVCCOUT-VBAT (application)
11.20
11.06
10.97
10.87
10.29
10.21
10.15
10.02
8.64
2.5
8.66
8.62
8.52
CH1～4_ON
CH1～5_ON
All_CH_ON
3
3.5
4
4.5
VBAT [V]
Fig13. VCCOUT Input current － Input voltage
(Recommended application)
www.rohm.com
© 2011 ROHM Co., Ltd. All rights reserved.
12
TSZ22111・14・001
TSZ02201-0Q2Q0A400010-1-2
2011.12.22 Rev.001