NCN6004AFTBR2G ON Semiconductor, NCN6004AFTBR2G Datasheet - Page 25

• Manufacturer Part Number: NCN6004AFTBR2G
• Description: IC INTERFACE SAM/SIM DUAL 48TQFP
• Manufacturer: ON Semiconductor

Specifications of NCN6004AFTBR2G

• Applications: PC's, PDA's
• Interface: Microcontroller
• Voltage - Supply: 1.8 V ~ 5.5 V
• Package / Case: 48-TFQFP Exposed Pad
• Mounting Type: Surface Mount
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: NCN6004AFTBR2GOS; NCN6004AFTBR2GOS; NCN6004AFTBR2GOSTR

Figure 20. CRD_VCC Efficiency as a Function of the
74
72
70
68
66
64
62
60
58
2.5
NOTE:
Figure 17. Typical CRD_VCC Ripple Voltage
3.0
Operating conditions under full output load.
V
out
Input Supply Voltage
= 3.0 V
3.5
L
ESR = 2 W
out
V
= 22 mH
4.0
bat
(V)
V
4.5
V
Figure 19. Typical Card Supply Turn OFF
out
out
= 5.0 V
= 1.8 V
5.0
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NCN6004A
5.5
25
Figure 18. Typical Card Voltage Turn ON and Start−up
under full output current load (35 mA, 60 mA and 65 mA),
according to EMV specifications.
current as depicted in Figure 21 and the magnetic core must
sustain this level of current without damage. In particular,
the ferrite material shall not be saturated to avoid
uncontrolled current spike during the charge up cycle.
Moreover, since the DC/DC efficiency depends upon the
losses developed into the active and passive components,
selecting a low ESR inductor is preferred to reduce these
losses to a minimum.
The curves in Figure 20, illustrate the typical behavior
During the operation, the inductor is subject to high peak
Sequence