CS51311GD14 Cherry Semiconductor Corporation, CS51311GD14 Datasheet - Page 5

• Manufacturer Part Number: CS51311GD14
• Description: Synchronous CPU Buck Controller for 12V and 5V Applications
• Manufacturer: Cherry Semiconductor Corporation

V
V
Hysteresis
V
Note 1: The IC power dissipation in a typical application with V
MOSFETs and R
perature of 77°C with an ambient temperature of 25°C.
Note 2: Guaranteed by design, not 100% tested in production.
2.0V DAC Code (V
CC
CC
CC
General Electrical Specifications
Monitor Start Threshold
Monitor Stop Threshold
Supply Current
PARAMETER
θJA
ID4
V
= 115°C/W yields an operating junction temperature rise of approximately 52°C, and a junction tem-
V
V
V
V
V
OUT
ID0
ID1
ID2
ID3
ID4
= V
Electrical Characteristics: 0˚C < T
ID3
V
=V
FB
86mV
ID2
= V
Start - Stop
No Load on GATE(H), GATE(L)
-
CURRENT LIMIT
1.1V
-
ID1
TEST CONDITIONS
= 0, V
+
-
+
-
DAC
+
+
-
ID0
-
EA
= 1), C
COMP
Block Diagram
A
GATE(H)
< 70˚C; 0˚C < T
PWRGD
+
-
5
0.25V
DISCHARGE
CC
+
+
-
-
= C
COMP
PWM COMP
= 12V, switching frequency f
GATE(L)
NONOVERLAP
S
R
LATCH
FAULT
J
< 125˚C; 9V < V
LOGIC
= 3.3nF, C
Q
MIN
0.15
7.9
7.6
C
TIME
OFF
OFF
Gnd
UVLO
OFF
CC
= 390pF; Unless otherwise stated.
TYP
0.30
8.4
8.1
12
< 14V;
SW
V
GATE(H)
GATE(L)
CC
= 250kHz, 50nc
MAX
0.60
8.9
8.6
20
UNIT
mA
V
V
V