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L9758

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24P25-P27P28-P30
This is information on a product in full production.
September 2016 DocID14273 Rev 5 1/30
L9758
Automotive multiple supply for engine control
Datasheet - production data
Features
AEC-Q100 qualified
Buck converter pre-regulated supply rated for a
minimum of 2 A (RMS)
Optional Boost converter for low battery
conditions
5 V, 2% @ 1 A, V
DD5
low dropout (LDO)
regulator
Programmable 3.3 V or 2.6 V, 2% @ 1 A, V
DDL
LDO regulator with external pass transistor
Programmable microcontroller core voltage
LDO regulator, V
CORE
2% @ 1 A with external
voltage divider and pass transistor
Programmable 1 V or 1.5 V, 10% @ 10 mA,
standby memory regulator (V
KAM
)
Programmable 3.3 V or 2.6 V, 10% @ 10 mA
alternate standby regulator (VSTBY)
Four 5 V ± 7 mV @ 50 mA protected tracking
regulators, one of them with selectable external
voltage reference.
Independent reset signals, RST5 and RSTL for
the V
DD5
, V
DDL
supplies.
Independent standby voltage monitor
STANDBY_OK
Two power supply enable signals for different
voltage level signals
Battery voltage thresholding - IGN
Logic level thresholding - PSU_EN
Description
The L9758 is a multiple output voltage regulator
utilizing linear, switchmode (buck and boost) and
tracking regulators to support high end
automotive microcontrollers used in powertrain
applications.
The L9758 provides two standby power
regulators as well as controllable LDO regulators.
The L9758 has power on reset functionality and
controlled slew rate of the V
DD5
, V
DDL
and
V
CORE
.
3RZHU62
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Table 1. Device summary
Order code Temperature range Package Packing
L9758
-40 °C to +125 °C PowerSO-36
Tube
E-L9758BBTR Tape & Reel
www.st.com
Contents L9758
2/30 DocID14273 Rev 5
Contents
1 Pins configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2 Functional block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
3 Operating conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
3.1 Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
3.2 Operating ranges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
3.3 Thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
4 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
4.1 General DC characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
4.2 BUCK pre-regulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
4.3 Boost pre-regulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
4.4 VDD5 linear regulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
4.5 VDDL linear regulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
4.6 VCORE linear regulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
4.7 VKAM linear regulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
4.8 VSTBY linear regulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
4.9 VSA, VSB, VSC, VSD tracking linear regulator . . . . . . . . . . . . . . . . . . . . 18
4.10 RST5 and RSTL reset signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
4.11 IGN and PSU_EN inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
4.12 STBY_OK signal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
5 Functional description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
5.1 General function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
5.2 Switching pre-regulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
5.3 VDD5, VDDL and VCORE linear regulators . . . . . . . . . . . . . . . . . . . . . . . 21
5.4 Tracking regulators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
5.5 VKAM and VSTBY linear regulators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
5.6 RESET monitors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
5.7 Thermal protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
5.8 Reference current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
DocID14273 Rev 5 3/30
L9758 Contents
3
6 Operating modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
6.1 Standby mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
6.2 Run mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
6.2.1 Entry into RUN mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
6.3 Power down . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
6.4 Low voltage operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
6.5 High voltage operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
7 Package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
7.1 PowerSO-36 package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
8 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24P25-P27P28-P30

L9758

Mfr. #:
Buy L9758
Manufacturer:
STMicroelectronics
Description:
Power Management Specialized - PMIC Multiple output Volt Reg Engine Ctrl
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
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