NR111D Datasheet, PDF (5/14 Pages) Sanken electric – Light Load High Efficiency

Light Load High Efficiency,31V, Current Mode Step-Down 4A Switcing Regulator IC
NR111D
Oct./17/2013
(2)OutpuNtRs1t1a4rtK-uUpVLoOad=CR
Vo=3.3V L=47uH
7.0
6.5
6.0
V_O=3.3V
5.5
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0.0
4.0 4.5 5.0 5.5 6.0 6.5 7.0 7.5 8.0 8.5 9.0 9.5 10.0
Input volt_Va_Ig_Ne_[V]VIN [V]
6.00
5.50
5.00
4.50
4.00
3.50
3.00
2.50
2.00
1.50
1.00
0.50
0.00
0.0
(N5R)1O1v0eKr/1c1u1rrKeOntCpPr.otection
Vo=5.0V L=10uH
ISET=OPEN
VIN=12V
15V
20V
24V
ISET=SHORT
1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0
Output cu_Iorr_[e_An_] t IO [A]
5.1
5.08
5.06
5.04
5.02
5
4.98
4.96
4.94
4.92
4.9
0
(3)Load Regulation : V_Load
Vin=8v
12v
24v
1
2
3
Output current IO [A]
(6) Supply current : I_IN
NR11_A4K_t /_N1_o1_-5_lK_oa,N_dR116K,NR_V1_O1₌7K_5.I₀Q_V
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0.0
4
0.0
5.0
10.0
15.0
20.0
25.0
30.0
Input volVtIaNg[Ve] VIN [V]
0.40
0.35
0.30
0.25
0.20
0.15
0.10
0.05
0.00
-0.05
-0.10
0.0
(4)Shut down supply current : I_IN(off)
NR110K,111K,114K,115K,116K,117K
V_ENIQ=_{_}0_oV_ff
5.0
10.0
15.0
20.0
25.0
30.0
Input vol_Vta_INg_[e_V] V_IN [V]
(7) Switching Frequency : fsw
NR110K focs
Vo=3.3V L=10uH
500
480
460
440
420
400
380
360
340
320
300
280
260
240
220
200
0.0
1.0
2.0
3.0
4.0
5.0
Outpu_It_o c_[Au_]rrent IO [A]
Rev.1.1
SANKEN ELECTRIC CO., LTD.
5
http://www.sanken-ele.co.jp