AT73C224-C_14 Datasheet, PDF (66/75 Pages) ATMEL Corporation – Ultra-low Power Real-time Clock (RTC) and Backup Battery Management

7.7.1 LDO3 and LDO4: Typical Characteristics
Figure 7-5. LDO Load Regulation
1.771
1.77
1.769
1.768
1.767
1.766
1.765
1.764
1.763
1.762
1.761
0
Load regulation VO3 = 1.8V
VDD3 = 5V
VDD3 = 4.2V
VDD3 = 3.6V
VDD3 = 3V
VDD3 = 2.8V
0.03
0.06
0.09
0.12
0.15
0I.l1o8ad (A) 0.21
0.24
0.27
0.3
3.276
3.275
3.274
3.273
3.272
3.271
3.27
3.269
3.268
3.267
3.266
3.265
3.264
0
Load regulation VO3 = 3.3V
VDD3 = 3.6V
VDD3 = 4.2V
VDD3 = 5V
0.03
0.06
0.09
0.12
0.15
0.18
0.21
0.24
0.27
0.3
Iload (A)
Shown below is VO3 Ripple (same as VO4) in response to a load current pulse from 10 mA to
200 mA.
Channel 2: VO3 = 1.8V and VO3 = 3.3V (50mV/div)
Channel 1: Iload = 10 mA - 200 mA (100 mA/div)
66 AT73C224
6266A–PMAAC–08-Sep-08