BD95500MUV Datasheet, PDF (7/21 Pages) Rohm – Switching Regulator with MOSFET for DDR-SDRAM Cores

BD95500MUV
Technical Note
●Pin Configuration
PGND SW SW SW SW SW SW SW SW PGND
30 29 28 27 26 25 24 23 22 21
VIN ₃₁
20 PGND
VIN ₃₂
19 ^PGND
VIN 33
18 ^PGND
VIN 34
17 ^PGND
VIN 35
16 ^PGND
VIN 36
15 ^PGND
VINS ₃₇
BOOT ₃₈
EN ₃₉
MODE ₄₀
14 ^VDD
13 ^Is+
12 ^Is-
11 VOUT
123
PGOOD N.C. CE
4567
ILIM VCC GND VREG
8 9 10
FS SS/ REF
TRACK
*Connect the bottom side (FIN) to the ground terminal
●Pin Function Table
PIN No.
PIN name
1
PGOOD
2
N.C.
3
CE
4
ILIM
5
VCC
6
GND
7
VREG
8
FS
9
SS/TRACK
10
REF
11
VOUT
12
Is-
13
Is+
14
VDD
15-21
PGND
22-29
SW
30
PGND
31-36
VIN
37
VINS
38
BOOT
39
EN
40
MODE
bottom
FIN
PIN function
Power Good Output Pin(+/-10% Window)
-
Ceramic Capacitor Reactive Pin
Current Limit Setting Pin
Power Supply Input pin (Control Block)
Sense GND
IC Reference Voltage (2.5V/500uA)
Switching Frequency Adjustable Pin (30k～100kΩ)
Soft Start Setting Pin (w/ Capacitor)/Tracking Voltage Input Pin
Vo Setting Pin
Output Voltage Sense Pin
Current Sense Pin -
Current Sense Pin +
FET Driver Power Supply Pin (5V Input)
Power GND Pin
High Side FET Source Pin
Power GND Pin
Battery Voltage Input pin (3.3~20V Input)
Battery Voltage Sense pin
HG Driver Power Supply Pin
Enable Input pin (IC ON when High)
Control Mode Adjustment Pin
Low: Continuous
High: SLLM
Substrate connection
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2010.05 - Rev.C