TDA3664T PHILIPS [NXP Semiconductors], TDA3664T Datasheet - Page 6

• Manufacturer Part Number: TDA3664T
• Description: Very low dropout voltage/quiescent current 5 V voltage regulator
• Manufacturer: PHILIPS [NXP Semiconductors]

Philips Semiconductors
TEST AND APPLICATION INFORMATION
Test information
1999 Sep 01
handbook, halfpage
handbook, halfpage
Very low dropout voltage/quiescent
current 5 V voltage regulator
(1) C1 is optional (to minimize supply noise only).
(2) C2 = 10 F.
(3) V
(1) Maximum ESR (Equivalent Series resistance)
(2) Minimum ESR only when I
Fig.5
ESR
( )
10
10
at 200 A
10
REG
10
1
2
1
V P
1
Curve for selecting the value of the output
capacitor.
= 5 V.
C1
1 F
(1)
Fig.4 Test circuit (SOT223).
I
REG
(2)
100 mA.
1
1
TDA3664
stable region
(1)
2, 4
REG
3
200 A.
10
MDA960
C2
C2 ( F)
(2)
REG
MDA961
(3)
10
2
6
Application information
N
The output noise is determined by the value of the output
capacitor, see Table 1.
Table 1 Noise figures
Note
1. Measured at a bandwidth of 10 Hz to 100 kHz.
S
The regulator is stabilized with an external capacitor on the
output. The value of this capacitor can be selected using
the diagrams shown in Fig.5 and Fig.6. The four examples
on the next page show the effects of the stabilization circuit
using different values for the output capacitor.
handbook, halfpage
TABILITY
OISE
CURRENT
OUTPUT
I
Fig.6
O
ESR
( )
0.5
10
(mA)
50
10
10
10
22
1
3
2
1
1
ESR dependency due to I
the right type of output capacitor.
C
O
stable region
= 10 F
550
650
10
NOISE FIGURE ( V)
C
O
Preliminary specification
= 47 F
320
400
10
2
REG
I REG (mA)
TDA3664
for selecting
MDA962
C
(1)
O
10
= 100 F
300
400
3