tea1205at NXP Semiconductors, tea1205at Datasheet - Page 10

• Manufacturer Part Number: tea1205at
• Description: High Efficiency Dc/dc Converter
• Manufacturer: NXP Semiconductors

Philips Semiconductors
1998 Mar 24
handbook, full pagewidth
handbook, full pagewidth
High efficiency DC/DC converter
efficiency
efficiency
Using a Coilcraft DO3308P 10 H inductor and a Sprague 595D 330 F capacitor.
The dotted line represents the Pulse Frequency Modulation (PFM) and the solid line the Pulse Width Modulation (PWM).
Using a Coilcraft DO3308P 10 H inductor and a Sprague 595D 330 F capacitor.
The dotted line represents the Pulse Frequency Modulation (PFM) and the solid line the Pulse Width Modulation (PWM).
(%)
(%)
100
100
90
80
70
60
50
40
90
80
70
60
50
40
10
10
1
1
Fig.6 Efficiency as a function of load current I
Fig.7 Efficiency as a function of load current I
1
1
PFM
10
10
10
PFM
L
L
(2.4 to 3.3 V).
(3.6 to 5.5 V).
10
10
2
PWM
2
PWM
Preliminary specification
I L (mA)
I L (mA)
TEA1205AT
MGM699
MGM700
10
10
3
3