L5953_07 STMICROELECTRONICS [STMicroelectronics], L5953_07 Datasheet - Page 8

• Manufacturer Part Number: L5953_07
• Description: Multiple switching voltage regulator
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

Block diagram and electrical specifications
Table 5.
8/31
SMPS.PWM (T
Vref,PWM
Symbol
I
V
Q,STBY
V
o,max
ΔV
ΔV
I
T
V
o,min
Lim
V
sd
d
i
o
o
Table 4.
Electrical characteristics (T
Quiescent current with regulators
and high-side drivers off
Thermal shutdown junction
temperature
Minimum output voltage
Maximum output voltage
Voltage reference
Input voltage range
Line regulation
Load regulation
Dropout voltage between Pin 19
and Pin 23
Current limit
amb
Pin number
= 25°C, V
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
Parameter
PIN function (continued)
DD
N.C.
GND
VSW
GATEIN
GATEOUT
STRAP
SYNC
VLR
VIN
FBLR
COMP
FB
STCAP
VSPI
VSTBY
ADJ
= 14.4V, V
Pin name
o
= 5V; unless otherwise specified.)
amb
W1, W2, RES, IRQ, not active;
REG2, HSD1, HSD2, PWM off;
S, C, D fixed at high/low logic
level
I
I
V
I
V
I
I
o
o
o
o
o
o
o
= 200mA
= 200mA
= 0.5A
= 0.5A, V
= 1A, V
= 25°C, V
= 5V; I
= 5V; I
Not connected
Ground
Source of the external MOS
Gate of the internal MOS
Switching output for power mos gate
Bootstrap
Synchronization
REG2 linear voltage regulator output
REG2 linear voltage regulator input
REG2 linear voltage regulator feedback
PWM compensation
PWM feedback
ST-CAP
Supply voltage for SPI I/O
REG1 stand-by linear voltage regulator output
3.3V/5V REG1 voltage select
Test condition
o
o
o
= 0.5A
= 0.2A to 0.5A
= 5V
o
DD
= 5V
= 14.4V)
Function
Min.
2.4
9.6
1.2
6
1.275
Typ.
150
2.5
10
Max.
10.4
100
100
2.6
0.5
18
50
1
L5953
Unit
mV
mV
μA
°C
V
V
V
V
V
V
A