BD95513MUV_10 Datasheet, PDF (8/18 Pages) Rohm – Switching Regulator with MOS FET for DDR-SDRAM Cores

BD95513MUV
●Pin Configuration
Technical Note
PGND PGND PGND VDD CE VOUT FB
24
23 22
21 20 19 18
PGND 25
REF
17
16 SS
SW 26
15 VREG
SW 27
14 EXTVcc
SW 28
13 VCC
SW 29
12 GND
SW 30
11 FS
SW 31
10 EN
PGND 32
9 MODE
1
2
3
4
5
6
7
8
VIN VIN VIN VIN BOOT PGOOD AVIN CTL
*Connect the underside (FIN) to the ground terminal
●Pin Function Table
PIN No.
1-4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22-25
26-31
32
Underside
PIN Name
V_IN
BOOT
PGOOD
AV_IN
CTL
MODE
EN
FS
GND
V_CC
EXTV_CC
V_REG
SS
REF
FB
V_OUT
N.C.
V_DD
PGND
SW
PGND
FIN
PIN Function
Battery voltage input (4.5 ~ 28 V)
HG driver power supply
Power good output (high when output ±10% of regulation)
Battery voltage sense
Linear regulator on/off (high = 5.0V, low = off)
Control mode selection
GND : Continuous Mode
3.0V
V_CC
: QLLM
: SLLM^TM
Enable output (high when V_OUT ON)
Switching frequency adjustment(R_FS = 30 k ~ 100 kΩ)
Sense ground
Power supply input
External power supply input
IC reference voltage (5.0V / 200mA)
Soft start condenser input
Output reference voltage (0.7 V)
Feedback input (0.7 V)
Voltage discharge output
-
Power supply input (5 V)
Power ground
Output to inductor
Power ground
Substrate connection
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8/17
2010.10- Rev.A