US3005CW UNISEM [UNISEM], US3005CW Datasheet - Page 2

• Manufacturer Part Number: US3005CW
• Description: 5 BIT PROGRAMMABLE SYNCHRONOUS BUCK CONTROLLER IC WITH DUAL LDO CONTROLLER
• Manufacturer: UNISEM [UNISEM]

US3004,US3005
ABSOLUTE MAXIMUM RATINGS
ABSOLUTE MAXIMUM RATINGS
V5 supply Voltage
V12 Supply Voltage ............................................ 20V
Storage Temperature Range ................................. -65 TO 150 C
Operating Junction Temperature Range .......... 0 TO 125 C
PACKAGE INFORMATION
PACKAGE INFORMATION
ELECTRICAL SPECIFICATIONS
ELECTRICAL SPECIFICATIONS
Unless otherwise specified ,these specifications apply over ,V
refer to Ta =25 C. Low duty cycle pulse testing are used which keeps junction and case temperatures equal to the
ambient temperature.
PARAMETER
VID Section
DAC output voltage
(note 1)
DAC Output Line Regulation
DAC Output Temp Variation
VID Input LO
VID Input HI
VID input internal pull-up
resistor to V5
Power Good Section
Under voltage lower trip point
Under voltage upper trip point
UV Hysterises
Over voltage upper trip point
Over voltage lower trip point
OV Hysterises
Power Good Output LO
Power Good Output HI
Soft Start Section
Soft Start Current
4-2
20 PIN WIDE BODY PLASTIC SOIC (W)
Ct / En
HDrv
Vfb1
Vfb2
PGd
CS+
Lin1
Gnd
CS-
V5
10
1
2
3
4
5
6
7
8
9
JA
=85 C/W
TOP VIEW
........................................... 10V
20
19
18
17
16
15
14
13
12
11
Lin2
D0
D1
D2
D3
D4
Vfb3
SS
V12
LDrv
SYM
CS+ =0V , CS- =5V
Vout ramping down
Vout ramping up
Vout ramping up
Vout ramping down
RL=3mA
RL=5K pull up to 5V
TEST CONDITION
12
= 12V, V
0.99Vs
2
0.89Vs
.015Vs
1.09Vs
.015Vs
4.8
MIN
5
= 5V and Ta=0 to 70 C. Typical values
TYP
Vs
27
0.90Vs
0.92Vs
.02Vs
1.10Vs
1.08Vs
.02Vs
10
MAX
1.01Vs
0.1
0.5
0.4
0.91Vs
.025Vs
1.11Vs
.025Vs
0.4
uA
UNITS
V
%
%
V
V
k
V
V
V
V
V
V
V
V
Rev. 1.2
12/8/00