AN8049 Panasonic Semiconductor, AN8049 Datasheet - Page 22

• Manufacturer Part Number: AN8049
• Description: 1.8-volt 3-channel step-up/ step-down/ and polarity inverting DC-DC converter control IC
• Manufacturer: Panasonic Semiconductor

AN8049FHN
22
V
4 mV[
V
4 mV[p-p]
[9] Error amplifier frequency characteristics
IN
IN
1. Error amplifiers 1 and 2
2. Error amplifier 3
Application Notes (continued)
10 F
10 F
(Test circuit)
(Test circuit)
P-P]
2.3 V
1 V
100 k
1 kW
1 k
IN 3
1 k
IN+3
1 k
IN 1
10 F
Amp.3
100 k
100 k
Amp.1
1.26 V
V
FB3
REF
V
OUT
FB1
V
OUT
180
135
135
180
225
-10
-20
40
30
20
10
90
45
45
40
30
20
10
10
20
45
90
0
0
0
0
1k
1k
10k
10k
100k
100k
Frequency (Hz)
Frequency (Hz)
Voltage Regulators
1M
1M
10M
10M
100M
100M