ER3125QI Datasheet, PDF (13/30 Pages) Altera Corporation – MOSFET for Synchronous Buck or Boost Buck Converter

Typical Performance Curves (Continued)
Page 13
V_OUT 5V/DIV
IL_BOOST 2A/DIV
SW_BOOST 20V/DIV
SW_BUCK 20V/DIV
10ms/DIV
FIGURE 23. BOOST BUCK MODE, V_O = 9V, I_O = 1.8A, BOOST INPUT DROPS
FROM 16V TO 9V DC
95
15V V_PVIN
90
85
30V V_PVIN
80
75
5V V_PVIN
6V V_PVIN
70
65
9V V_PVIN
60
55
50
0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4
LOAD CURRENT (A)
FIGURE 24. EFFICIENCY, BOOST BUCK, 500KHZ, V_OUT 12V,
T_A = +25°C
190
180
170
160
150
140
130
120
110
100
DIE TEMPERATURE (°C)
FIGURE 25. UPPER MOSFET R_DS(ON) (mΩ) OVER-TEMPERATURE
May 2014 Altera Corporation
10040
Enpirion Power Datasheet ER3125QI 2.5A Regulator with Integrated High-Side MOSFET for
Synchronous Buck or Boost Buck Converter
May 28, 2014
Rev A