BL8022
PIN DESCRIPTION
PIN #
1
2
3
4
5
NAME
EN
GND
SW
IN
FB
DESCRIPTION
Enable pin for the IC. Drive the pin to high to enable the part, and low to disable
Ground
Inductor connection. Connect an inductor between SW and the regulator output.
Supply voltage.
Feedback input. Connect an external resistor divider from the output to FB and
GND to set the output to a voltage between 0.6V and Vin
ELECTRICAL PERFORMANCE
Tested under TA=25
C,
unless otherwise specified
Efficiency VS Load Current,
Vout=1.8V
100
95
90
85
80
75
70
65
60
55
50
45
40
35
0
Efficiency VS Load Current,
Vout=2.5V
100
95
90
85
80
75
70
65
60
55
50
45
40
35
0
Efficiency (%)
Vin=4.2V
Vin=3.6V
Vin=2.7V
Efficiency (%)
Vin=4.2V
Vin=3.6V
Vin=2.7V
100 200 300 400 500 600 700 800 900 1000
100 200 300 400 500 600 700 800 900 1000
Load Current (mA)
Load Current (mA)
Efficiency VS Load Current,
Vout=1.2V
100
95
90
85
80
75
70
65
60
55
50
45
40
35
0
Efficiency (%)
Vin=4.2V
Vin=3.6V
Vin=2.7V
100 200 300 400 500 600 700 800 900 1000
Load Current (mA)
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