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LD6915 데이터시트 PDF




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부품번호 LD6915 기능
기능 Dual low-dropout regulators
제조업체 NXP Semiconductors
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LD6915 데이터시트, 핀배열, 회로
LD6915 series
Dual low-dropout regulators, low noise, 150 mA
Rev. 1 — 8 July 2013
Objective data sheet
1. Product profile
1.1 General description
The LD6915 series consists of small-size dual Low DropOut regulators (LDO). Each
device delivers two times 150 mA with a typical voltage drop of 120 mV at 150 mA for
each LDO. The system offers two individual fixed nominal output voltages (VO(nom)) from
1.2 V to 3.6 V with high Power Supply Rejection Ratio (PSRR) of 80 dB.
The LDO has an integrated Soft start to control the inrush current during start-up. The
output mode, when disabled, can be high-ohmic 3-state or auto discharge. Optionally a
delayed output circuit is available for the second output. The devices are available in
DFN1212-6 (SOT1229) package with a maximum height of 0.4 mm.
1.2 Features and benefits
Extremely low standby current in shutdown mode (0.1 A)
Low quiescent current
Fast turn-on time
Safety features (temperature watchdog, current limiter and foldback circuit)
Delayed output circuit for second LDO (optional)
High PSRR
Auto discharge or high-ohmic mode for output when disabled
DFN1212-6 (SOT1229) with 0.4 mm pitch and package size of 1.2 1.2 0.4 mm
Pb-free, Restriction of Hazardous Substances (RoHS) compliant, free of halogen and
antimony (Dark Green compliant)
1.3 Applications
Smartphones
Mobile handsets
Digital still cameras
Tablet PCs
Mobile internet devices
Portable media players
1.4 Quick reference data
IO = 150 mA for each LDO
PSRR = 80 dB at 1 kHz
RMS noise Vn(o)RMS = 60 V
at 10 Hz to 100 kHz
tstartup(reg) = 150 s
VI = 1.75 V to 5.5 V
VO = 1.2 V to 3.6 V (fixed value)
Dropout voltage Vdo = 120 mV
at IO = 150 mA for each LDO
Quiescent current Iq = 2 35 A at
IO = 0 mA




LD6915 pdf, 반도체, 판매, 대치품
NXP Semiconductors
4. Block diagram
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Fig 2. Block diagram dual LDO with auto discharge function (-P and -PD versions)
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Fig 3. Block diagram dual LDO with high-ohmic output (-H and -HD versions)
LD6915_SER
Objective data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 1 — 8 July 2013
© NXP B.V. 2013. All rights reserved.
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LD6915 전자부품, 판매, 대치품
NXP Semiconductors
LD6915 series
Dual low-dropout regulators, low noise, 150 mA
Table 10. Electrical characteristics …continued
At recommended input voltages and Tamb = 40 C to +85 C; voltages are referenced to GND (ground = 0 V);
VI = VO(nom) + 1 V; Cext (IN) = 1 F; CL(ext) = 1 F at pin OUT1 and OUT2; unless otherwise specified.
Symbol
Parameter
Conditions
Min Typ Max
Ripple rejection and output noise per LDO
PSRR
power supply rejection ratio IO = 30 mA; fripple = 1 kHz
Vn(o)(RMS)
RMS output noise voltage
bandwidth = 10 Hz to 100 kHz;
VO = 1.8 V
Enable input and timing (pin EN1, pin EN2) per LDO
[2] -
[2] -
80 -
60 -
VIL LOW-level input voltage
VIH HIGH-level input voltage
Ien enable current
tstartup(reg)
regulator start-up time
VO = 0.95 VO(nom); IO = 150 mA
td delay time
for LDO2; -PD or -HD version
Auto discharge function (-P or -PD version) per LDO
0
1.1
-
[1][2] -
[2] -
- 0.4
- 5.5
400 -
150 -
100 -
Rpd pull-down resistance
tsd(reg)
regulator shutdown time
Thermal protection
IO = 0 A; VO = 0.1 VO(nom)
[2] -
[1][2] -
100 -
300 -
Tsd
Tsd(hys)
shutdown temperature
shutdown temperature
hysteresis
[2] -
[1][2] -
160 -
20 -
Unit
dB
V
V
V
nA
s
s
s
C
K
[1] After Tsd was reached and after the device was disabled, the junction temperature must decrease by Tsd(hys) to enable the device.
[2] The parameter was verified and is guaranteed by design.
LD6915_SER
Objective data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 1 — 8 July 2013
© NXP B.V. 2013. All rights reserved.
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